[Treatment of chronic recurrent synovial fistula following radiosynoviorthesis: two case reports].

Chronic recurrent synovial fistulae of the knee are uncommon. They can occur after traumatic injuries, as complication after surgical treatment or in patients with rheumatoid arthritis as spontaneous complication after trauma. No consensus exists about the adequate treatment and literature on this subject is scarce. Two cases are presented in which synovial fistula had occurred after radiosynoviorthesis. Previous conservative and conventional surgery failed to solve the problem as the fistulae remained chronic and recurrent. However both, radical debridement and plastic reconstruction by either a fasciocutaneous or a myocutaneous gastrocnemius flap were successful.