Przejdź do treściNew pain does not always start from a blank slate. An old injury, previous operation or prolonged period of immobilisation can change joint structure, the way a limb is loaded and the appearance of imaging studies, so an accurate history of earlier treatment can be important when assessing a new problem.
An old injury can leave important context
An intra-articular fracture or an injury to a ligament, meniscus or cartilage can affect stability, alignment and load distribution long after the initial healing period. In a meta-analysis of 131 studies, previous knee injury was associated with a higher risk of later radiographic knee osteoarthritis. That is useful information about risk, but it does not prove that every new pain appearing years later is caused by the old injury.
The name of an operation is often not enough
Saying that someone had “knee arthroscopy” or “shoulder surgery” does not tell us exactly what was done. A procedure may have involved repairing or partially removing a meniscus, repairing a tendon, stabilising a ligament, removing a loose body or combining several procedures. Those differences can affect how scars, range of motion, strength, stability and later imaging are interpreted.
The type of implant, the position of anchors or screws, associated procedures and any complications may also matter after surgery. A discharge summary, operative report and implant card can therefore be more useful than the remembered name of the procedure alone.
Old images can show what has changed over time
Comparing a current X-ray, MRI or CT scan with an earlier study may show whether bone alignment, joint-space width, implant position or another feature has genuinely changed. Without previous images, a normal residual finding after an old injury or operation may look concerning, while slow progression can be harder to recognise.
Not every old finding explains current symptoms
This is just as important. A screw seen on an X-ray, scar tissue on MRI or an old calcification may have nothing to do with the new pain. The clinician compares the history with the exact location of symptoms, when they began, movement and functional examination and, when needed, new imaging. The aim is not to blame everything on an old operation, but to separate background findings from the most likely cause of the current problem.
What information helps an orthopaedic surgeon assess an old injury?
- the approximate date and mechanism of the previous injury;
- the name and side of the area that was operated on;
- the discharge summary, operative report and implant card, if available;
- previous X-rays, MRI or CT images together with their reports;
- information about infection, wound-healing problems, reinjury or additional procedures;
- a short timeline of when the current symptoms appeared after any period of improvement.
Missing some of the documentation does not prevent a useful consultation. It is better to say clearly what is unknown than to guess the name of a procedure. Practical information about preparation and documents is also available in Patient Questions.
When should you not wait?
More urgent assessment is warranted after a new injury with inability to bear weight, rapidly increasing swelling, a hot red joint, fever, discharge from an old scar, sudden weakness or new sensory disturbance. In these situations, previous documentation can be valuable, but obtaining it should not delay medical assessment.
References
- Duong V, Abdel Shaheed C, Ferreira ML, et al. Risk factors for the development of knee osteoarthritis across the lifespan: A systematic review and meta-analysis. Osteoarthritis and Cartilage. 2025;33(10):1162–1179.
- Dilley JE, Bello MA, Roman N, McKinley T, Sankar U. Post-traumatic osteoarthritis: A review of pathogenic mechanisms and novel targets for mitigation. Bone Reports. 2023;18:101658.
- Washington University Orthopedics. Introduction to Orthopaedic Surgery: History, Physical Examination/Imaging.
This material is educational and does not replace an individual medical consultation or examination.
Content prepared by: Tomasz Poboży - orthopaedic surgeon.