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The iliotibial tract, otherwise known as the iliotibial band, or the band of Maissiat, is a ligament connecting the ilium with the tibia. It is observed in its form in man and is associated with the erect posture. It is connected intimately with the tensor fasciae latae anteriorly and the glutaeus m

1. Dislocation of the metacarpophalangeal joint of the index is rare. 2. Complete dislocation is almost always irreducible by the closed method and requires open reduction.

The mechanism of subluxation of the metacarpophalangeal joint is explained on the basis of experimental production of the deformity. A method of treatment is suggested, consisting in restoration of the position of the extensor pollicis longus and adductor pollicis over the metacarpophalangeal joint with transplantation of the extensor indicis proprius to the dorsal apparatus and extensor pollicis longus tendon over the joint.

This study permits us to define the cellular behavior of the synovial membrane to various irritants. In meniscal tears it is of mechanical nature, in hemarthroses it is of chemical nature (endogenous proteins), and in villous arthritis it is of an allergic nature (phenomenon of Arthus). The histological picture of each appears so different and so characteristic that it has a certain value in pathogenic research of a chronic affliction of the knee. We believe that it will be possible in the future to establish with precision, through a biopsy of the infrapatellar fat pad, the factor responsible for the origin of a morbid process.

The variations in size of the short lateral ligament, the occasional absence of the short lateral ligament, and the reasons for the presence of the fabellofibular ligament are indicated in this study. The short lateral ligament and the fabellofibular ligament are apparently homologous structures cor