DIE ARTHROSKOPIE DES OBEREN SPRUNGGELENKS. INDIKATIONEN - ERGEBNISSE - KOMPLIKATIONEN

Between 1991 and 1994 50 patients underwent arthroscopic surgery of the ankle joint. Forty-four patients were evaluated at a mean follow-up of 22 months after surgery. There were different indications for arthroscopic surgery: osteoarthritis (n = 6), synovitis (n = 8), osteochondrosis dissecans (n = 18), flake fracture (n = 3), posttraumatic anterolateral impingement (n = 9). The postoperative results were evaluated using an ankle scoring system (Bray 1989). The Bray-score was improved significantly (p < 0,001) from 63.2 (14.3) points to 81.8 (19.2) points by arthroscopic surgery. Patients with flake fractures (+31.5 points) and patients with posttraumatic impingement (+26.4 points) benefitted most. The smallest increase of the Bray-score was seen in patients with osteochondrosis dissecans (+12.1 points). Results after surgery were inversely correlated to the degenerative changes in the preoperative x-rays. Three patients had complications. One patient suffered from algodystrophia, in 2 patients a permanent lesion of intermediate dorsal cutaneous nerve was observed.