A guide instrument for high tibial osteotomy.
Fifty-two patients (52 knees) with medial gonarthrosis were subjected to high tibial osteotomy using the Tjörnstrand guide instrument. The intended wedge was calculated from a whole lower limb radiograph. The correction aimed at was an overcorrection of 4 degrees in valgus of the hip-knee-ankle angle. All but 1 case were corrected to +/- 3 degrees of the intended angle. All but two cases healed within +/- 3 degrees of the achieved surgical correction, i.e., a substantial improvement compared with our previous freehand technique where one fifth were outside this interval. We conclude that in knee surgery a guide is as important for osteotomies as for arthroplasties.
Odenbring
S
S
Lund University Department of Orthopedics, Sweden.
Egund
N
N
Lindstrand
A
A
Tjörnstrand
B
B
D000328:Adult; D000368:Aged; D001168:Arthritis / Q000601:surgery*; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000002:abnormalities / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000295:instrumentation* / Q000592:standards; D011859:Radiography; D013977:Tibia / Q000000981:diagnostic imaging / Q000601:surgery*