[Surgical treatment of gonarthrosis]

Gonarthosis, a frequent complaint in women over 50, brings about changes in the knee which alter its macro and micro structure and are responsible for alteration of the anatomical axis of the lower limb. The most frequent consequence is knock-knee leading to overloading of the medial compartment and reduction of the internal interosseous space. Whereas in the initial forms symptomatic therapy is the treatment of choice, in severe and advanced cases with complete articular blockage arthroprosthesis is the alternative and in cases with minor limitations of joint movement the best results are obtained by osteotomy intended to restore the correct axis. In order to evaluate which of the surgical techniques available is the most appropriate, the authors analyzed 40 cases of tibial osteotomy performed between 1974 and 1984. On the basis of the results obtained, cupuliform osteotomy above the tuberosity appears to lead to the highest success rate.