1. The evolution of the skeletal changes in chondro-osteo-dystrophy is described, and typical radiographs of patients observed into late adolescence are shown. 2. The etiology of the condition is discussed

A case of bilateral avascular necrosis of the capitate is presented. A review of the literature has identified a clear-cut clinical syndrome. The aetiology and pathology of this syndrome is discussed and a new method of treatment is proposed

1. A case of calcification in the intervertebral discs of a child is described. 2. The difference in the condition as it affects children and adults is discussed. 3. The etiology is considered but no definite conclusion is suggested

Aims

Patients with a triangular fibrocartilage complex (TFCC) injury report ulnar-sided wrist pain and impaired function. The surgical procedure of TFCC reinsertion aims to improve function in patients with this injury in whom conservative treatment has failed. The purpose of this study was to investigate the outcomes of open TFCC reinsertion.

Aims

We studied the outcomes of hip and knee arthroplasties in a high-volume arthroplasty centre to determine if patients with morbid obesity (BMI ≥ 40 kg/m²) had unacceptably worse outcomes as compared to those with BMI < 40 kg/m².

A case is reported of a woman in whom the bones of one upper limb have been progressively disappearing during at least eleven years. Investigations have thrown no light on etiology or treatment

1. Two cases of osteochondritis dissecans affecting several joints are described. 2. There is no evidence that injury, congenital anomaly or constitutional disturbance played any part in the etiology of either case

1. Nineteen patients with articular synovial chondromatosis are reviewed. 2. The etiology, diagnosis and management of the condition are discussed. 3. It is concluded that extensive synovectomy is not justified; simple removal of loose bodies is the treatment of choice

1 . A case of haemangioma arising in the tendons of the extensor pollicis longus and extensor pollicis brevis muscles of a twenty-seven-year-old woman is described. 2. The etiology of the lesion is discussed, together with a brief review of the literature

1. Five cases of bilateral glenoid hypoplasia are described. Flattening of the humeral heads and sometimes other skeletal abnormalities coexisted. 2. The condition is considered to be congenital. 3. The differential diagnosis and etiology are discussed

We describe two cases of bursitis at the insertion of the biceps tendon. They presented as swellings in the cubital fossa with symptoms of median nerve irritation. The aetiology was probably mechanical trauma; both patients were cured by operation

1. A case of dysplasia epiphysialis punctata is described, with some histological observations. 2. Both parents were syphilitic. 3. The etiology is not yet fully determined. Some suggestions are put forward for further investigation

1. A case of multiple pseudo-cystic tuberculosis of bone presenting as a generalised disease of the skeleton in a child is reported. 2. The response to streptomycin and para-amino-salicylic acid is shown. 3. A possible explanation of the etiology of this rare disease is suggested

Lipoma arborescens is a rare intra-articular lesion, characterised by diffuse replacement of the subsynovial tissue by mature fat cells, producing prominent villous transformation of the synovium. The aetiology of this benign condition is unknown. We describe six cases involving the knee discussing the symptoms, diagnosis and treatment

We report a case of malignant fibrous histiocytoma of the hip which occurred 30 years after the insertion of a single chrome-cobalt alloy screw for a slipped femoral epiphysis. The possible aetiological association between malignant tumours and metallic implants is discussed

1. The features of ganglia of the flexor tendon sheaths of the hand are described. 2. A high incidence in typists is discussed in relation to etiology and pathogenesis. 3. The suggestion is made that needle rupture is the method of choice, with surgical excision in case of recurrence

1. A patient with ectopic bone in the upper arm associated with multiple congenital anomalies is reported. 2. The previous cases of congenital abnormalities in patients with ectopic bone formation have been indicated and the problem of etiology has been discussed

1. Three cases of premature epiphysial closure at the knee complicating prolonged immobilisation for congenital dislocation of the hip are described. 2. The etiology of this complication is briefly discussed, and it is suggested that relative ischaemia of the epiphysial plates is the most likely cause

A method is described whereby fractures of the neural arch similar to those in spondylolysis are produced experimentally. The forces, bending moments and displacements required to initiate the fractures are given; The mechanical aspects in the aetiology of spondylolysis are explained by a simplified two-dimensional force analysis

1. Two patients with bilateral pes cavus and lymphoedema are reported. Lymphography confirmed the existence of lymphatic insufficiency in both cases. In both there was evidence of hereditary factors in the etiology. 2. This familial syndrome appears not to have been previously reported