Dislocation of the coccyx: a case report.

VOL. 77-B. No. 5. SEPTEMBER 995 long leg brace. Radiographs at 18 months (Fig. lb) confirmed sound union of the tibia. Discussion. Healey et al ( 1990) used percutaneous bonemarrow grafting for delayed union or nonunion after extensive en-bloc resections and reconstructions of primary sarcomas of bone and reported good results. We have used this technique experimentally in rabbits (Sharma et al 1992) and found increased callus production, with early healing of radial osteotomies and bony defects. The technique has also been used as a substitute for open cancellous bone grafting for nonunion; approximately 90% success was reported by Connolly et al (199 1) and Garg, Gaur and Sharma (1993). We believe our case to be the first of its type to be reported. The result was encouraging but the type of suitable patient, and the timing, volume and frequency of bonemarrow injections required will need further studies.