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Updated: Sep 27, 2025
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
An Unusual Case of Posterior Knee Dislocation Following Total Knee Arthroplasty: A Case Report
P Mohamed Jisam1, George Jacob2, Bipin Theruvil1
1Department of Orthopaedics, VPS Lakeshore Hospital, Cochin, Kerala, India.
Introduction:
We propose a possible mechanism of dislocation in a posterior stabilized (PS) total knee arthroplasty (TKA) and suggest that it can be treated like a stable posteriorly dislocated hip replacement if stable throughout the range on examination under anesthesia.
Case Report:
A 71-year-old female presented with the right posterior knee dislocation following 1 year of TKA. Following the successful relocation, the knee was found to be stable throughout the range of movement and an uneventful recovery at 3 years follow-up.
Conclusion:
Dislocation can occur in an otherwise stable TKA while squatting and can be successfully treated closed. The patients should be counseled to avoid squatting in a non-high flexion PS knee.
