Total knee arthroplasty using the S-ROM mobile-bearing hinge prosthesis.
A retrospective study was performed on 15 patients receiving 16 S-ROM mobile-bearing hinge total knee prostheses that were evaluated with at least a 2-year follow-up (range, 27-71 months). Indications for its use included severe instability and bone loss. The average patient age was 63 years (range, 33-83 years). There were 15 revision arthroplasties and 1 primary arthroplasty. Knee Society scores showed notable improvement in pain, motion, and stability (33.6 preoperatively vs 76.5 postoperatively; P <.0001) and approached significant improvement in function (29.2 preoperatively vs 43.5 postoperatively; P =.11). After excluding a patient with a traumatically ruptured patellar tendon, the probability of the latter comparison improved (P <.01). There was no evidence of loosening, and complete bone apposition was seen in nearly all cases. A high percentage of satisfactory results can be achieved when using this mobile-bearing hinge knee prosthesis for these indications.
Jones
R E
RE
Center for Joint Restoration, Dallas, Texas 75235, USA.
Skedros
J G
JG
Chan
A J
AJ
Beauchamp
D H
DH
Harkins
P C
PC
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation* / Q000379:methods; D001696:Biomechanical Phenomena; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007717:Knee / Q000000981:diagnostic imaging / Q000502:physiology; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011859:Radiography; D012086:Reoperation; D012189:Retrospective Studies; D016896:Treatment Outcome