A more stable posterior approach for hemiarthroplasty of the hip.

The dislocation rate following the insertion of a hemiarthroplasty of the hip via the posterior approach is variously quoted as between 8 per cent and 15 per cent. We set out to determine if this could be reduced by preserving the labrum and capsular structures at the time of surgery. We used a modification of the posterior approach, in which the labrum and capsule are preserved which appears not to have been widely reported.

KY nailing of impending and pathological fractures of the proximal femur.

Eight two patients underwent 86 Küntscher Y nailing for impending and pathological fractures of the proximal femur. All but five mobilised post-operatively, thus improving their quality of life. Eighteen patients died in hospital.

Observations on the current and future surgical management of hydatid disease affecting the vertebrae.

Five cases of hydatid disease affecting the vertebrae are described. Clinical features, radiologic appearance, and poor prognosis are emphasized. Four patients had some degree of neurologic deficit at the time of presentation and in three cases there was an increasing kyphosis.

Osteoid osteoma of the pisiform.

Osteoid osteoma of the pisiform seems not to have been previously reported. In both the cases reported in this paper there was diagnostic difficulty and delay. Complete surgical removal of the nidus was curative.

Entrapment of the superficial peroneal nerve. Three case reports.

Entrapment of the superficial peroneal nerve is an unusual cause of pain in the ankle and foot. In such cases decompression of the nerve at the point of exit from the deep fascia will produce a good result. Three cases are described.

An unusual "giant" lipofibroma in the palm.

A case is described of an unusually large lipofibromatous hamartoma arising from the tendon sheath of flexor pollicis longus.

An anomalous flexor digitorum superficialis indicis muscle in association with a fibroma presenting as a stiff painful finger.

A description is given of a fibroma associated with an anomalous muscle arising from the flexor digitorum superficialis indicis tendon distal to the transverse carpal ligament, which presented as a stiff painful finger.

Effects of vascular occlusion on the femoral head in growing rabbits.

Temporary vascular occlusion of the femoral head in 6-week-old rabbits was produced by a closed means in a hip spica; the hips were maintained for 24 h in the position of flexion, abduction and internal rotation. All animals developed necrosis of the capital femoral epiphysis, best seen histologically at 2 weeks, and this subsequently recovered. Despite marked histological changes only one hip developed radiographic changes.

Dolorous calcification of the lateral sesamoid bursa of the great toe.

A case of painful calcification within a sesamoid bursa of the great toe is presented. This may be the first description of painful calcification of this site.

'Locking knee' due to osteochondroma.

An unusual cause of locking of the knee is reported, due to an osteochondroma at or around the inner part of the upper tibia. It usually presents in young teenagers who frequently have difficulty extending the knee from a fully flexed position. The cause is interference with the free excursion of the pes anserinus.

An anomalous flexor digitorum superficialis indicis muscle presenting as carpal tunnel syndrome.

The description is given of an anomalous muscle arising from the flexor digitorum superficialis indicis tendon distal to the transverse carpal ligament which presented as carpal tunnel syndrome.

Debranching enzyme from rabbit skeletal muscle. Purification, properties and physiological role.

Debranching enzyme was purified 150-fold from rabbit skeletal muscle by a three-step procedure which utilised ammonium sulphate precipitation, ion-exchange chromatography on DEAE-cellulose and "hydrophobic" chromatography on Sepharose-NH(CH2)4NH2. The preparation was completed within three days, and 200 mg enzyme was isolated from 1000 g muscle, which represented an overall yield of 60%. The preparation was homogeneous by the criteria of polyacrylamide gel electrophoresis and ultracentrifugal analysis.

Thermal studies of the rates of the reactions of carbon dioxide in concentrated haemoglobin solutions and in red blood cells. A. The reactions catalysed by carbonic anhydrase. B. The carbamino reactions of oxygenated and deoxygenated haemoglobin.

1. The initial rates of uptake of carbon dioxide by bovine Hb and HbO(2), in solutions and in intact red cells at 25 degrees C, pH 6.8-7.