{"id":183289,"date":"2026-08-18T10:49:57","date_gmt":"2026-08-18T10:49:57","guid":{"rendered":"https:\/\/pabau.com\/?p=183289"},"modified":"2026-08-18T14:12:17","modified_gmt":"2026-08-18T14:12:17","slug":"pittsburgh-knee-rules","status":"publish","type":"post","link":"https:\/\/pabau.com\/de\/templates\/pittsburgh-knee-rules\/","title":{"rendered":"Pittsburgh Knee Rules: Criteria, walk test and free template"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"Pittsburgh Knee Rules: Clinical Decision Tool & Free PDF Template\",\"description\":\"Complete guide to the Pittsburgh Knee Rules criteria, scoring logic, sensitivity and specificity, and comparison to the Ottawa Knee Rules. Includes a free downloadable template for ED and physiotherapy clinicians.\",\"url\":\"https:\/\/pabau.com\/templates\/pittsburgh-knee-rules\/\",\"audience\":{\"@type\":\"MedicalAudience\",\"audienceType\":\"Clinician\"},\"reviewedBy\":{\"@type\":\"Person\",\"name\":\"Dr Vanja Kitanova\",\"jobTitle\":\"Medical Reviewer\",\"affiliation\":{\"@type\":\"Organization\",\"name\":\"Pabau\"},\"knowsAbout\":[\"Clinical Decision Rules\",\"Emergency Medicine\",\"Physical Therapy\",\"Clinical Documentation\"],\"sameAs\":\"https:\/\/pabau.com\/blog\/author\/vanja\/\"},\"mainEntity\":{\"@type\":\"DigitalDocument\",\"name\":\"Pittsburgh Knee Rules\",\"description\":\"A clinical reference guide presenting the Pittsburgh Knee Rules decision criteria, walk test administration, scoring logic, and comparative effectiveness against the Ottawa Knee Rules - with a structured assessment checklist and point-of-care documentation template.\",\"encodingFormat\":\"application\/pdf\",\"url\":\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/templates\/pittsburgh-knee-rules\/pittsburgh-knee-rules.pdf\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true,\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"GBP\",\"availability\":\"https:\/\/schema.org\/InStock\"},\"hasDigitalDocumentPermission\":{\"@type\":\"DigitalDocumentPermission\",\"permissionType\":\"https:\/\/schema.org\/ReadPermission\"},\"author\":{\"@type\":\"Organization\",\"name\":\"Pabau\",\"url\":\"https:\/\/www.pabau.com\"},\"datePublished\":\"2026-08-17\"},\"datePublished\":\"2026-08-17\",\"dateModified\":\"2026-08-18\"}<\/script>\n\n\n        <div id=\"key_takeaways\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/12\/Key-Takeaways-Icon.svg\" alt=\"Key takeaways\" height=\"42\" width=\"42\">\n                                <h3>Key takeaways<\/h3>\n            <\/div>\n            <div class=\"list\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The Pittsburgh Knee Rules tell you whether a patient with acute knee trauma needs an X-ray.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>A positive result needs a fall or blunt blow, plus either an age under 12 or over 50, or inability to take four weight-bearing steps.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The mechanism criterion is mandatory, so knee pain that starts without a fall or a blow sits outside the rule.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The Pittsburgh Knee Rules are more specific than the Ottawa Knee Rules, so they send fewer patients for imaging without missing more fractures.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Pabau&#8217;s structured clinical records capture the mechanism, the walk test result, and your reasoning, so the imaging decision stays auditable.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<div style=\"background: linear-gradient(135deg, #E2F2FD 0%, #DFE3FD 100%); border-radius: 16px; padding: 40px; margin: 32px 0;\">\n<h2 style=\"margin: 0 0 12px 0; font-size: 22px; color: #121d36;\">Download your free Pittsburgh Knee Rules template<\/h2>\n<p style=\"margin: 0 0 20px 0; color: #444; font-size: 15px;\">A point-of-care reference card covering patient details, the mandatory mechanism screen, and the age and walk test qualifiers. It also walks through how to administer the walk test, how to read the result, and where to record your clinical reasoning.<\/p>\n<a style=\"display: inline-block; background: #037CD2; color: #fff; padding: 14px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 15px;\" href=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/templates\/pittsburgh-knee-rules\/pittsburgh-knee-rules.pdf\" target=\"_blank\" rel=\"noopener\">Download template<\/a>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The Pittsburgh Knee Rules tell you whether an acutely injured knee needs an X-ray. Imaging is indicated when the patient fell or took a blunt blow to the knee. On top of that, the patient must be under 12 or over 50, or unable to take four weight-bearing steps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Emergency clinicians, physical therapists, and sports medicine providers make that call every day. This guide covers the criteria, the walk test, and how the rule compares with the Ottawa Knee Rules. The free template above turns all of it into one bedside reference card.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Pittsburgh Knee Rules?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Pittsburgh Knee Rules are a validated clinical decision tool that tells you when a knee X-ray is warranted after acute injury. The rule screens the mechanism first, then asks whether the patient is at either extreme of age or unable to bear weight. That structure identifies patients at risk of fracture while sparing everyone else the imaging.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The rule was developed and validated in emergency departments, where unnecessary imaging adds cost, radiation exposure, and delay. <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/8060409\/\" target=\"_blank\" rel=\"nofollow noopener\">Seaberg and Jackson<\/a> established its diagnostic accuracy in the American Journal of Emergency Medicine in 1994. Later multicenter work replicated the finding and tested the rule against the Ottawa Knee Rules.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Any practice that keeps <a href=\"https:\/\/pabau.com\/features\/medical-records-management\/\">structured clinical records<\/a> can build the rule into the encounter. The same questions then get asked and recorded every time.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/downloadable_template_article\/pittsburgh-knee-rules\/comprehensive-emr-patient-record-management.webp\" alt=\"Comprehensive EMR and patient record management in Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s patient record keeps the mechanism, the walk test result, and the imaging decision on one timeline.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 id=\"h-criteria-mechanism-plus-one-qualifier\" class=\"wp-block-heading\">Criteria: Mechanism plus one qualifier<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A positive result, meaning an X-ray is indicated, needs the mechanism criterion plus at least one of the two qualifiers below. It does not need all three.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Mechanism of injury (required):<\/strong> the injury came from a fall from any height, or a blunt blow to the knee.<\/li>\n\n\n\n<li><strong>Qualifier one, age:<\/strong> the patient is younger than 12 years or older than 50 years.<\/li>\n\n\n\n<li><strong>Qualifier two, walk test:<\/strong> the patient cannot walk four weight-bearing steps in the emergency department, regardless of limping.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Read it as mechanism AND (age OR walk test). A 34-year-old who fell down the stairs and cannot take four weight-bearing steps is positive, even though the age criterion is nowhere near met. A 68-year-old who was hit on the knee by a car door is positive on age alone, even if she walks in unaided.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The result is negative in two situations. Either the mechanism criterion is absent, or the mechanism is met and neither qualifier applies. A negative result means imaging is not indicated by this rule alone. Your clinical judgment remains the final arbiter, because the rule is a decision aid rather than a replacement for assessment.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How to perform the walk test<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The walk test is the most practical part of the rule, and it only holds up if you run it properly. Here is the point-of-care protocol.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Explain the task:<\/strong> tell the patient to take at least four steps with full weight on the injured leg. No hopping, no partial weight-bearing, and no assistance.<\/li>\n\n\n\n<li><strong>Observe the attempt:<\/strong> four consecutive weight-bearing steps on the injured leg count as a pass, even if the gait is slow or antalgic.<\/li>\n\n\n\n<li><strong>Record the outcome:<\/strong> note whether the patient completed four weight-bearing steps. Stopping after one to three steps, hopping, or declining to try all count as an inability to walk.<\/li>\n\n\n\n<li><strong>Read it in context:<\/strong> pain alone does not equal inability, because many patients walk despite significant pain. True inability points to bony injury or serious soft-tissue damage.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Administering it loosely invalidates the result. Allowing partial weight-bearing, offering an arm, or accepting the patient&#8217;s own report without watching all break the rule. <a href=\"https:\/\/pabau.com\/industry\/physical-therapy-emr\/\">Clinical assessment documentation<\/a> should capture the observed result and the context around it. A note such as &#8222;patient declined weight-bearing due to severe pain&#8220; tells the next clinician what happened.<\/p>\n\n\n\n<h2 id=\"h-scoring-and-interpretation-positive-vs-negative-result\" class=\"wp-block-heading\">Scoring and interpretation: Positive vs negative result<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Interpreting the result comes down to one question after the mechanism screen: does either qualifier apply?<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Result<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Criteria met<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Clinical action<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Positive<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Fall or blunt trauma, plus either age under 12 or over 50, or inability to walk four weight-bearing steps<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Obtain knee X-rays<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Negative<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No fall or blunt trauma, or the mechanism is met but neither the age nor the walk test qualifier applies<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Imaging not indicated. Clinical observation and conservative management are appropriate<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/features\/patient-intake-software\/\">Digital assessment forms<\/a> that encode this logic let clinicians record each criterion as they assess, then flag the result automatically. That removes the mental arithmetic and leaves a consistent record behind. When the film confirms a distal femur fracture such as <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s72455s\/\">S72.455S<\/a>, the diagnosis attaches to the same encounter.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/downloadable_template_article\/pittsburgh-knee-rules\/digital-forms.webp\" alt=\"Digital clinical assessment forms in Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s digital forms let you tick off mechanism, age, and walk test at the bedside, so the X-ray decision documents itself.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Sensitivity, specificity, and diagnostic accuracy<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The rule&#8217;s value lies in what it rules out. A <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/9656942\/\" target=\"_blank\" rel=\"nofollow noopener\">1998 multicenter comparison<\/a> in Annals of Emergency Medicine applied both rules to the same patients and reported the figures below.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Metric<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:center;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Pittsburgh Knee Rules<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:center;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Ottawa Knee Rules<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Sensitivity<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">99% (catches nearly every fracture)<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">97%<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Specificity<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">60% (fewer unnecessary X-rays)<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">27%<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Fracture rate in the study group<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">12.2% of 745 patients<\/td>\n<td style=\"padding:12px 16px;text-align:center;color:#374151\">Same cohort<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">In that cohort, applying the Pittsburgh Knee Rules could have cut radiography by 52% at the cost of one missed fracture. The trade-off is worth stating plainly. Both rules catch almost every fracture, but the Pittsburgh rule sends far fewer negative patients to X-ray.<\/p>\n\n\n\n<h2 id=\"h-pittsburgh-vs-ottawa-knee-rules-which-should-you-use\" class=\"wp-block-heading\">Pittsburgh vs Ottawa Knee Rules: Which should you use?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both rules are evidence-based, and they differ mainly in how much imaging they tolerate. <a href=\"https:\/\/pabau.com\/industry\/sports-medicine-software\/\">Sports medicine clinicians<\/a> tend to pick one based on their patient mix and their risk tolerance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Pittsburgh Knee Rules suit<\/strong> lower-suspicion patients, non-emergency settings such as sports medicine and occupational health practices, and any team trying to reduce imaging. Higher specificity means fewer X-rays, which saves cost and radiation exposure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Ottawa Knee Rules suit<\/strong> high-acuity departments and trauma centers, where the priority is catching every fracture. They use five criteria, including tenderness at the patella or fibular head and an inability to flex the knee to 90 degrees.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One practical difference decides it for many teams. The Pittsburgh rule needs a trauma mechanism, so it does not apply to atraumatic knee pain at all. Pick the rule that matches your setting&#8217;s risk profile, and apply it consistently rather than switching case by case.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pearls, pitfalls, and clinical limitations<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Even a validated tool has boundaries. These are the ones that change management most often.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Age is a qualifier, not a gate:<\/strong> a 30-year-old who fell can still be positive through the walk test. Missing the age criterion does not make the result negative on its own.<\/li>\n\n\n\n<li><strong>The mechanism criterion is mandatory:<\/strong> spontaneous pain, an osteoarthritis flare, or patellar tracking problems fall outside the rule. It applies only to acute traumatic injury.<\/li>\n\n\n\n<li><strong>Pain complicates the walk test:<\/strong> a patient may be unable to walk because of a ligament or meniscal injury rather than a fracture. A <a href=\"https:\/\/pabau.com\/blog\/posterolateral-drawer-test\/\">posterolateral drawer test<\/a> and the rest of your examination should shape how you read it.<\/li>\n\n\n\n<li><strong>Swelling and deformity are not criteria:<\/strong> the rule ignores effusion and obvious deformity. Image a grossly deformed knee whatever the rule says, and pair the film with a <a href=\"https:\/\/pabau.com\/blog\/circulation-assessment\/\">circulation assessment<\/a>.<\/li>\n\n\n\n<li><strong>Polytrauma is out of scope:<\/strong> in multi-system trauma, follow your trauma protocol. The rule is designed for isolated knee injury.<\/li>\n\n\n\n<li><strong>Validation was done in emergency departments:<\/strong> using it in a primary care or sports medicine practice is reasonable. External validation in those settings is thinner, so record any deviation from the original setting.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How Pabau supports structured clinical assessment documentation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A decision rule is only as defensible as the note behind it. In most practices, the mechanism, the walk test, and the reasoning end up in free text, phrased differently by every clinician. When a complaint or an audit arrives months later, nobody can show that the rule was applied correctly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practice management software like Pabau handles this with structured digital forms attached to the appointment. You capture mechanism, age, walk test result, and interpretation as discrete fields. Every knee assessment in the practice then reads the same way, and any of them can be pulled up in seconds.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pabau Scribe, our AI scribe, drafts the narrative note from the consultation while you stay with the patient. It writes into the same chart as the structured fields, so the assessment and your <a href=\"https:\/\/pabau.com\/templates\/soap-progress-notes\/\">SOAP progress notes<\/a> sit together. Follow-up reminders then keep the patient moving through review or imaging without manual chasing.<\/p>\n\n\n        <div id=\"book_a_demo\">\n            <div class=\"left-side\">\n                <div class=\"logo\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Logo.svg\"\n                        alt=\"Logo\"\n                        loading=\"lazy\"\n                    \/>\n                <\/div>\n\n                <h3 class=\"heading\">\n                    Record every imaging decision as you make it                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&#8217;s digital forms and clinical records capture the mechanism, the walk test result, and your reasoning in the patient&#8217;s chart. Your knee assessments stay consistent, auditable, and easy to find.                <\/p>\n\n                <div class=\"button-group\">\n                    <a href=\"\/book-demo\/\" class=\"btn btn-scale-effect btn-cta-color btn-md\">\n                        <span class=\"btn-text\">Book a demo<\/span>\n                        <div class=\"btn-icon btn-icon-right\" aria-hidden=\"true\">\n                            <svg\n                                width=\"14\"\n                                height=\"12\"\n                                viewBox=\"0 0 14 12\"\n                                fill=\"none\"\n                                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                            >\n                                <path\n                                    d=\"M0.75 4.77295C0.335786 4.77295 0 5.10874 0 5.52295C0 5.93716 0.335786 6.27295 0.75 6.27295V5.52295V4.77295ZM13.2803 6.05328C13.5732 5.76039 13.5732 5.28551 13.2803 4.99262L8.50736 0.219648C8.21447 -0.073245 7.73959 -0.073245 7.4467 0.219648C7.15381 0.512542 7.15381 0.987415 7.4467 1.28031L11.6893 5.52295L7.4467 9.76559C7.15381 10.0585 7.15381 10.5334 7.4467 10.8263C7.73959 11.1191 8.21447 11.1191 8.50736 10.8263L13.2803 6.05328ZM0.75 5.52295V6.27295L12.75 6.27295V5.52295V4.77295L0.75 4.77295V5.52295Z\"\n                                    fill=\"currentColor\"\n                                ><\/path>\n                            <\/svg>\n                        <\/div>\n                    <\/a>\n                <\/div>\n            <\/div>\n\n            <div class=\"right-side\">\n                <img decoding=\"async\"\n                    src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Home-Page-Concept-4.webp\"\n                    alt=\"Pabau practice management dashboard\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Pittsburgh Knee Rules are easy to apply once the logic is clear. Screen the mechanism first. If there was a fall or a blunt blow, ask two more things. Is the patient outside the 12 to 50 age band, or unable to take four weight-bearing steps? Either one sends the knee for imaging.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The gain is fewer X-rays with almost no loss of sensitivity, and the cost is discipline. The walk test has to be observed rather than reported, and the rule has to be left alone when there was no trauma. Print the template, keep it where the assessment happens, and record the result the same way every time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau turns clinical decision rules into structured fields your team fills in once and can defend later.<\/p>\n\n\n        <div id=\"expert_picks\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/11\/Expert-Picks.svg\" alt=\"Continue your research\" height=\"42\" width=\"42\">\n                                <h3>Continue your research<\/h3>\n            <\/div>\n            <div class=\"content\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Need another bedside knee measure?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/knee-to-wall-test\/\">Knee to wall test<\/a> walks through how to perform, measure, and interpret the test.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Assessing the ankle as well?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/ottawa-ankle-rules-calculator\/\">Ottawa Ankle Rules calculator<\/a> applies the same imaging logic to foot and ankle trauma.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Planning the return to sport?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/return-to-running-protocol-physical-therapy-2\/\">Return to running protocol<\/a> sets out the staged criteria for getting a patient running again.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Spending too long on notes?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/ai-clinical-documentation\/\">AI clinical documentation<\/a> explains how automated notes shorten the write-up without thinning the record.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Choosing software for a therapy practice?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/physical-therapy-emr-software\/\">Best physical therapy EMR software<\/a> compares the platforms clinicians actually document in.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1786975314565\"><h3 class=\"schema-faq-question\">What are the Pittsburgh Knee Rules criteria?<\/h3> <p class=\"schema-faq-answer\">The rule has one mandatory criterion and two qualifiers. The mechanism must be a fall from any height or a blunt blow to the knee. Then either the patient is younger than 12 or older than 50, or the patient cannot walk four weight-bearing steps. One qualifier is enough for a positive result.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786975314566\"><h3 class=\"schema-faq-question\">When should I use the Pittsburgh Knee Rules instead of the Ottawa Knee Rules?<\/h3> <p class=\"schema-faq-answer\">Use the Pittsburgh Knee Rules in lower-suspicion cases and non-emergency settings where reducing unnecessary imaging matters. They are far more specific, so they produce fewer false positives. Use the Ottawa Knee Rules in high-acuity departments where catching every fracture outweighs the extra X-rays.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786975314567\"><h3 class=\"schema-faq-question\">What is the sensitivity and specificity of the Pittsburgh Knee Rules?<\/h3> <p class=\"schema-faq-answer\">A 1998 multicenter comparison reported 99% sensitivity and 60% specificity for the Pittsburgh Knee Rules. The Ottawa Knee Rules scored 97% and 27% in the same patients. In that cohort, the Pittsburgh rule could have reduced radiography by 52% with one missed fracture.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786975314568\"><h3 class=\"schema-faq-question\">Can the rule be used in children?<\/h3> <p class=\"schema-faq-answer\">Yes. Age under 12 is one of the two qualifiers, so a child under 12 with a fall or blunt trauma meets the rule. A child of 12 or older can still be positive through the walk test, since only one qualifier is needed. Clinical judgment should still guide imaging in pediatric trauma.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786975314569\"><h3 class=\"schema-faq-question\">Is there a free PDF I can download?<\/h3> <p class=\"schema-faq-answer\">Yes. The template at the top of this article covers the criteria, walk test instructions, result interpretation, and space for your documentation. It is a free PDF, ready to print or use on screen.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786975314570\"><h3 class=\"schema-faq-question\">What mechanism of injury does the rule require?<\/h3> <p class=\"schema-faq-answer\">The rule applies when the injury came from a fall from any height or a direct blunt blow to the knee. This criterion is mandatory. Spontaneous knee pain with no documented trauma sits outside the rule entirely.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Download your free Pittsburgh Knee Rules template A point-of-care reference card covering patient details, the mandatory mechanism screen, and the age and walk test qualifiers. It also walks through how to administer the walk test, how to read the result, and where to record your clinical reasoning. Download template The Pittsburgh Knee Rules tell you [&hellip;]<\/p>\n","protected":false},"author":83,"featured_media":183288,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"88","_yoast_wpseo_content_score":"90","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[4266,1126,1127,4138],"tags":[1205,3344,3998,3422,1402,1382],"class_list":["post-183289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clinical-guides","category-physical-therapy","category-sports-medicine","category-templates","tag-breath-test","tag-clinical-decision-making","tag-knee-injury","tag-physical-therapy-special-test","tag-sports-medicine","tag-template"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - 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