Official websites use. Share sensitive information only on official, secure websites. The goal of this article was to present the clinical and radiological results of 42 severe genu varum operated on between August and June using computer navigation.
Forty patients were satisfied 22 or very satisfied 18 with the result. Regarding the radiological results, the goal was reached in At that mid-term follow-up no patient had revision to a total knee arthroplasty.
Computer-assisted double level osteotomy in severe genu varum is a reliable, reproducible, and accurate technique. This procedure, which is very delicate, especially in reaching pre-operative objectives, is simplified by computer-assistance. Medial knee osteoarthritis is not uncommon and high tibial osteotomy HTO was described for the first time more than 50 years ago [ 7 , 9 , 13 ]. Nowadays, HTO remains a good option [ 3 — 5 , 8 , 11 , 17 , 24 , 27 ] despite the large expansion of total knee replacement TKR or the revival of unicompartmental knee prosthesis boosted by the less-invasive surgery concept.
Nevertheless, it is a demanding surgery with the risk of excessive over or under correction which can quickly lead to failure [ 8 , 24 , 26 ] or an oblique joint line leading to more difficulties in performing TKR Fig. This oblique joint line corresponds to an excessive valgus of the tibial mechanical axis [ 1 ]. It is all the more frequent when varus is substantial to have to decide whether to have to perform a femoral or a femoral and tibial correction.
We thought for a long time that combined femoral and tibial osteotomy was a suitable procedure to avoid this drawback, but, because of the difficulty in obtaining an accurate lower leg axis without any reproducible assistance, we had performed it in only a few cases.
