Osteo Knee Pathway - Xray Knee
A Knee Xray (weight-bearing AP and lateral) is required before referring the patient for consideration of a Total Knee Replacement.
- As patients require an xray within 6 months of their surgery if a recent xray confirming OA exists it is not necessary to repeat this.
- Always attach the knee xray report to any referral as reports and films are not routinely available at grading.
An Urgent Knee Xray is required for:
- Knee injury
- Persistent aching pain not related to activity.
- Night pain.
Other indications for Knee Xray:
- Pain and functional impairment are significant.
- Pain when the patient has had a previous knee joint replacement.
- Recurrent presentation with same symptoms.
- Suspected bone malignancy (primary or metastatic).
- Knee locking, restricted movement, or deformity.
Xray signs of osteoathritis:
- Joint space narrowing
- Subchondral sclerosis
- Subchondral cysts
Note that when a septic arthritis or osteomyelitis is suspected or where there is a haemarthrosis then refer urgently to the Orthopaedic Registrar on call.
Last updated : Tuesday, October 03, 2017
Next review date : Wednesday, October 03,2018
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