Fifteen to twenty-eight years' follow-up results of high tibial valgus osteotomy for osteoarthritic knee

A long-term follow-up study was performed on 75 knees of 53 patients after high tibial valgus osteotomy. The earlier results have previously been reported. There were 15 knees in I I men and 60 knees in 42 women. The follow-up period ranged from 15 to 28 years with a mean of 19 3 years. The age at osteotomy ranged from 46 to 73 years with a mean of 59.6 +/- 6.7 years. The diagnosis was media] compartmental osteoarthritis (OA) in 68 knees (46 patients) and spontaneous osteonecrosis of the medial femoral condyle in 7 knees (7 patients). Valgus osteotomy was performed above the tibial tuberosity, with removal of a laterally based wedge in all cases, aiming for anatomical valgus angulation of 10degrees. The American Knee Society Score showed a Knee Score of 37 +/- 20 and a Function Score of 38 +/- 16 preoperatively and 87 +/- 13 and 80 +/- 19 at the final 15 to 28 years' follow-up. The femoro-tibial angle in standing was 186 +/- 6.5degrees (6degrees of anatomical varus angulation) before and 171 +/- 7.5degrees (9degrees of anatomical valgus angulation) at final follow-up (p < 0.0001), with no apparent loss of limb alignment. (C) 2004 Elsevier B.V. All rights reserved.