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

Aims

The aim of this study was to examine the results of the acetabular distraction technique in achieving implantation of a stable construct, obtaining biological fixation, and producing healing of chronic pelvic discontinuity at revision total hip arthroplasty.

Aims

It has been suggested that mobile-bearing total knee arthroplasty (TKA) might lead to better outcomes by accommodating some femorotibial rotational mismatch, thereby reducing contact stresses and polyethylene wear. The aim of this study was to determine whether there is a difference between fixed- and mobile-bearing versions of a contemporary TKA with respect to durability, range of movement (ROM) and function, ten years postoperatively.

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

The uncommon injury of mallet thumb is described, with four case reports. In diagnosis the condition must be distinguished from dropped thumb. Operative treatment is advised which, in this small series, gave excellent results

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

A case of intracortical haemangioma in the tibial diaphysis is reported. The radiological and macroscopic features were identical with osteoid osteoma. In view of this similarity, haemangiomata, despite their rarity at this site, must be considered in the differential diagnosis of osteoid osteoma

Two cases are reported of polytenosynovitis involving the wrists and ankles and caused by toxoplasmosis, together with the investigations that led to the diagnosis. Medical and surgical treatment of the first patient and medical treatment only of the second patient gave satisfactory results

A case of unusually extensive pigmented villonodular synovitis of the wrist with involvement of bone, particularly of the distal end of the radius, is reported. The clinical and radiographic evidence suggested a diagnosis of primary bone tumour, possibly a giant-cell tumour with sarcomatous transformation

1. Previous reports of calcareous deposits about the metacarpo-phalangeal joints are reviewed, and four further cases are described. 2. The clinical features are described, with reference to the possibility of erroneous diagnosis. 3. Conservative treatment is recommended

1. Radiological criteria in the diagnosis of congenital dislocation of the head of the radius are suggested. 2. Some of the radiographic features described as characteristic of congenital dislocation of the head of the radius may be found also in post-traumatic dislocation of the radial head

1. Two cases of arterial damage complicating shoulder injuries are reported. 2. The treatment is described and the importance of early diagnosis is stressed. 3. Operation was indicated in both cases by developing ischaemia in spite of conservative measures

1. Twenty cases of mycetoma pedis are described. 2. Most patients had the disease in an early stage and were cured by simple excision. 3. The importance of early diagnosis and treatment in order to avoid amputation is emphasised

1. Three cases of hereditary sensory neuropathy are reported. 2. Neuropathic destruction of joints and chronic infected ulcers are the primary problems of management. 3. This entity must be considered in the differential diagnosis of trophic ulcerations of the extremities

We reviewed 16 patients with salmonella osteitis or septic arthritis. All patients were immunologically normal and none had a history of typhoid fever. We discuss the importance of obtaining a bacteriological diagnosis and provide guidelines on the duration of antibiotic treatment

We report a patient who developed an aortic pseudoaneurysm in the L3–L4 disc space after lumbar disc surgery. The diagnosis was made by MRI and aortography, and repair using a prosthetic graft and anterior fusion was successful. We discuss the predisposing factors, the clinical picture and management of vascular injuries during disc excision

1 . A case of plantar Dupuytren's disease in a woman aged twenty-three is described. 2. A review of the literature has shown that the histology and rapid recurrence have led to an erroneous diagnosis of fibrosarcoma and treatment by amputation on several occasions

Osteochondral fractures of the talus are uncommon. They are classified according to Berndt and Harty, as progressing in severity through four stages. This classification, however, does not address extra-articular extrusion of the osteochondral fragment. We report an osteochondral lesion of the talar dome which presented as an extruded extra-articular fragment in a closed injury of the ankle. This type of lesion may offer a continuation to the four original stages. Clinicians should be aware that this pattern of fracture can occur, and thus allow a more accurate diagnosis and the provision of some aid in the treatment of these injuries

1. A case of solitary myeloma of the clavicle is reported. The patient remained well, without signs of dissemination, twenty-four years after excision of the clavicle. 2. Solitary myeloma is rare; the diagnosis depends upon thorough investigation and prolonged follow-up

1. The appearance of arthrographs of healthy and of injured ankles are described on the basis of experimental and clinical studies. 2. Arthrographic appearances have been correlated with findings at operation. 3. Arthrography is a valuable method of investigation for the accurate diagnosis of injuries about the ankle