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Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_III | Pages 278 - 279
1 Mar 2004
Michos I Andrianopoulos N Drakoulakis E Loutriotis A Tamviskos A Kargas V
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Purpose: To present the results of the tibial tuberosity osteotomy as part of the surgical approach for total knee replacement. Material and Methods: Tibial tuberosity osteotomy was performed during TKR for better exposure in 19 knees corresponding to 19m patients (9 male, 10 female), with average age 76 years (68–80). Four of the procedures were revisions. Fifteen were primary TKR, ten of which had been subjected to high tibial osteotomy previously. The rest þve patients had excessive valgus deformity (over 20 degrees), and they were approached through a lateral parapatelar incision. In two cases screws only were used to stabilize the osteotomised tubercle, and wire loops in the rest of them. Patients were instructed for partial weight bearing for six weeks postoperatively. Results: All osteotomies united in less than four months. In three cases (including the two with only screw þxation), proximal migration of the tuberosity was noted, but less than 2cm. No skin problems were encountered. Three patients,(22%), complained for anterior knee pain. Preoperative mean range of movement was 75 degrees, and improved to 90 degrees postoperatively. Average blood loss was 850 cc. Conclusions: The tibial tuberosity osteotomy offers excellent exposure in the revision and difþcult primary TKR, but it lengthens the operative time, and the blood loss is higher.