Posterior knee dislocation after total knee arthroplasty in a patient with multiple sclerosis. A case report.
A patient with multiple sclerosis (MS) and severe osteoarthritis of the right knee with valgus deformity developed early in the postoperative period a posterior dislocation of the knee after total knee arthroplasty (TKA), due to severe spasm of her hamstring muscles. At revision surgery the posterior cruciate retaining prosthesis was exchanged for a non-linked constrained knee prosthesis. Technical considerations are described for this rare complication, which remains a serious clinical challenge for the orthopaedic surgeon.
Bron
Johannes L
JL
VU University Medical Centre, Amsterdam, The Netherlands.
Saouti
Rachid
R
De Gast
Arthur
A
D019645:Arthroplasty, Replacement, Knee; D017885:Collateral Ligaments / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000150:complications*; D018482:Muscle, Skeletal / Q000601:surgery; D010003:Osteoarthritis / Q000601:surgery; D010027:Osteotomy / Q000379:methods; D016119:Posterior Cruciate Ligament / Q000502:physiology; D011183:Postoperative Complications; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013035:Spasm / Q000150:complications; D013710:Tendons / Q000601:surgery