Technical Accuracy in High Tibial Osteotomy for Gonarthrosis

Revision after osteotomy for gonarthrosis: A 10–19-year follow-up of 314 cases

“…In our series advanced stage of arthrosis had a great influence on the revision rate, which accords with Hagstedt (1974).…”

“…No substantial change of our treatment program for gonarhosis has occurred during the period 1969 through 1978 except that only knees with early stages of gonarthrosis (Stages 1-111) were subjected to tibial osteotomy after Hagstedt's (1974) follow-up of the early material. Of tibial osteotomies performed from 1969 through 1971, three out of 24 normocorrected and overcorrected knees and 24 out of 57 undercorrected knees had Stage IV or V advanced arthrosis at the follow-up.…”

Constitutional Varus Does Not Affect Joint Line Orientation in the Coronal Plane

“…HKA describes the angular relation between the mechanical femoral and tibial axis. These axes were defined by three reference points as indicated by Hagstedt et al [17]. The first reference point was the center of the femoral head, determined with the use of a digital template with concentric circles.…”

Joint area constraint had no influence on bone loss in proximal tibia 5 years after total knee replacement

“…Knee alignment was measured on radiographs as hip-knee ankle (HKA). 11 Patients with a 58 or less varus/valgus alignment were randomly selected to either a relatively flat or a concave tibial plateau. The PCL was retained during the operation.…”