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1. Sixty-one cases of compression of the ulnar nerve are reported, forty at the elbow and twenty-one at the wrist. Although contributory factors may include deformity, osteoarthritis, injury, ganglia and other tumours, the narrow anatomical confines of the nerve at these two levels are noteworthy and alone may produce nerve compression. 2. Careful clinical examination will usually determine the level of involvement if not the exact pathology. Surgical exploration is indicated both as a diagnostic and therapeutic procedure in most cases. 3. Following removal of the compressing agent rapid recovery occurred in most cases.

A review is presented of 41 patients with traumatic tetraplegia on whom reconstructive surgery of the upper limb was carried out. Twelve patients were followed up for more than 10 years after operation and the average period overall was seven and a half years. Tendon transfers were made with the aim of providing extension of the elbow or restoring a useful grasp or a combination of both. The assessment was carried out on four main aspects: the function of the elbow, the function of the hand, the ability to carry out the activities of daily living and the effect of the surgical reconstruction on the personal and social achievement of the patient.

Radial and dorsal subluxation of the base of the first metacarpal is a frequent clinical and radiological phenomenon in association with the common condition of osteoarthrosis of the base of the thumb. In an attempt to determine if any ligamentous instability could be responsible for this displacement, a series of seventeen joints was dissected. The ligamentous structure is constant. Division of the first intermetacarpal ligament was alone found to be responsible for the development of the characteristic displacement of the base of the first metacarpal. In two specimens in which there was advanced osteoarthrosis, spontaneous attenuation of the first intermetacarpal ligament was demonstrated. In attempts at operative reconstruction it is the first intermetacarpal ligament which must be reinforced to provide stability.

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