[Trans-scapho-perilunar dislocations with internal instability of the carpal bones].

The authors have shown both in patients and in cadavers that the posterior triquetro-lunate ligament plays a major role in the stability of the carpus. They suggest a new concept associating pronation and dorsal flexion of the wrist, the hand being immobilised, to explain instability following perilunate dislocations with fractures of the scaphoid. They recommend both the fixation of the scaphoid fracture by a screw and primary repair of the triquetro-lunate ligament.

[Long-term results of the forage-biopsy in grade I and II osteonecrosis of the femoral head. Apropos of 133 cases re-examined after an average time of 9 years 6 months].

The results of 133 operations of cervical forage are reported with an average follow-up of 9 years. There were 94 p. 100 of good results in grade I cases and 82 p.