PhysioHub
Log in
Research previewExplore the evidence libraryExplore the research library

Signs & Symptoms for Radiographic OA

Source: Physiotutors

Execution

  1. 1Confirm knee pain and record the patient's age.
  2. 2Ask about morning stiffness and whether it lasts less than 30 minutes.
  3. 3Palpate for bony tenderness and bony enlargement around the knee.
  4. 4Move the knee and listen or feels for crepitus.
  5. 5Check whether palpable warmth is absent, then applies the ACR clinical classification combination.

Positive outcome

A clinical OA pattern is supported by knee pain plus age over 50 years, crepitus, morning stiffness less than 30 minutes, bony tenderness, bony enlargement, and no palpable warmth in the appropriate combination. These are classification criteria, not one physical test. Radiographs remain relevant when classification, severity, or alternate pathology matters.

Studies

StudyReliabilitySnSpLR+LR−
Altman et al. (1986)NA95693.060.07

CommentAltman's ACR criteria were developed for classification and reporting of knee OA, so they should not be used as a stand-alone diagnostic shortcut in every clinical context. Pain severity and radiographic severity often mismatch. Use these signs with patient history, function, and imaging when needed.

Moderate Clinical Value