1. The clinical features in twenty cases of osteoid osteoma have been analysed and compared with other cases reported in the literature. 2. The lesion is regarded as a benign neoplasm and its unusual clinical behaviour is attributed to its vascular nature. 3. The frequency with which an erroneous diagnosis of "neurosis" is made is stressed

1. Two cases of Paget's disease of the calcaneum are reported; in both, the primary complaint was of pain in the heel. 2. In the first case there were no demonstrable lesions elsewhere, but in the second the typical radiographic appearances of Paget's disease were shown in other bones. 3. The literature on the subject is briefly reviewed

We report a case of systemic Penicillium marneffei infection in a Chinese woman who presented with multiple osteolytic lesions and radiographic changes similar to those seen in other fungal osteomyelitides. This infection is often misdiagnosed as tuberculosis and has a high mortality rate. The correct diagnosis is important since early antifungal therapy is life-saving

Seven patients with macrodactyly in the foot are reported. None showed any stigmata of neurofibromatosis and all were found to have excessive accumulation of fibro-fatty tissue as the most striking pathological feature. It is suggested that this may represent the basic lesion in this condition. The literature is reviewed and attention is drawn to the differences between macrodactyly in the hand and in the foot

Two cases of benign osteoblastic tumours of the spine, occurring in young patients, and presenting as expanding osteolytic lesions with some central calcification and ossification, are described. It is suggested that they represent a condition allied to, but usefully separated from, osteoid osteoma of bone. The name osteogenic fibroma of bone, proposed by Lichtenstein for this type of case, is accepted

Three patients referred for rehabilitation of brachial plexus lesions and two referred with leg weakness associated with sciatica were found to have conversion paralysis. The diagnosis was made by demonstrating normal motor nerve conduction to the clinically weak muscles. The weakness was treated by intensive physical rehabilitation with complete and sustained recovery in all cases

We report 11 patients who, over a five-year period, were treated for pyogenic infection of the sacro-iliac joint. This condition is uncommon and difficult to assess, so that diagnosis is liable to be delayed and morbidity increased. Skeletal scintigraphy, with perfusion phase imaging, is usually positive in early lesions and prompt antibiotic treatment reduces complications

Non-traumatic osteonecrosis of the femoral head is a potentially devastating condition, the prevalence of which is increasing. Many joint-preserving forms of treatment, both medical and surgical, have been developed in an attempt to slow or reverse its progression, as it usually affects young patients.

However, it is important to evaluate the best evidence that is available for the many forms of treatment considering the variation in the demographics of the patients, the methodology and the outcomes in the studies that have been published, so that it can be used effectively.

The purpose of this review, therefore, was to provide an up-to-date, evidence-based guide to the management, both non-operative and operative, of non-traumatic osteonecrosis of the femoral head.

Cite this article: Bone Joint J 2017;99-B:1267–79.

1. A farmer who owned cattle infected with brucellosis presented with a painful, swollen wrist. Osteolytic lesions were seen radiologically. The wrist was explored. Histological features were those of a subacute granuloma. Brucella abortus biotype I was grown. 2. The clinical diagnosis, bone and joint radiology, pathology and microbiology are discussed

1. Forty-four patients with tuberculous tenosynovitis have been reviewed. 2. The lesions (fifty-two in all) are classified and described according to their anatomical sites. 3. Particular reference is made to the natural history of the condition and the results of treatment. 4. Early and extensive excision of the affected tendon sheaths combined with the use of anti-tuberculous drugs is recommended

We describe a case of osteosarcoma of the scaphoid bone, which to our knowledge is only the second reported case of osteosarcoma in the carpus. A 38-year-old man complained of intense pain in the right wrist and had curettage and a bone graft for a lesion in the scaphoid. Histological examination showed this to be an osteosarcoma. Below-elbow amputation was performed and adjuvant chemotherapy given. There has been no evidence of recurrence or metastases at 33 months after amputation

We reviewed 19 patients treated for upper arm fractures using Seidel's locking nail system, which allows for early function after operation. The overall results were good with no cases of pseudarthrosis, infection or radial nerve palsy. All the patients regained full shoulder movements with no evidence of rotator cuff lesions

1. Two cases of pseudomalignant osseous tumour of soft tissue are reported and added to the nineteen cases in the literature. 2. The clinical and histological features are described and distinguished from myositis ossificans, osteogenic sarcoma in soft tissue and parosteal fasciitis. 3. In one case the non-malignant nature of the lesion has been confirmed by its spontaneous regression

1. Three cases of a benign osteoblastic lesion of bone are described. An outstanding feature of each was the hyperostosis of adjacent bones or synovitis in an adjacent joint. 2. The clinical, radiological and histological features resembled osteoid osteomata more than benign osteoblastoma in each case. 3. The significance of this observation is questioned in relation to the pathogenesis of osteoid osteoma

1. Ten cases are recorded of the entity known as non-osteogenic fibroma of bone. 2. We believe the evidence is in favour of the condition's being a localised disturbance of bone growth (metaphysial fibrous defect) rather than a true neoplasm. 3. The disorder usually pursues a symptomless course and in many instances the lesion disappears spontaneously

This experiment demonstrates that infiltration of hydrocortisone into rabbit calcaneal tendons has a direct effect on the tendon, producing necrosis of collagen at the site of injection. The repair of the lesion so produced is incomplete even after eight weeks, and is often complicated by dystrophic calcification. Similar morphological changes may account for spontaneous rupture of tendons in patients receiving steroid infiltration

1. Evidence is presented that the basic lesion in scoliosis is relative lengthening of the anterior components of the spine compared with the posterior elements. 2. The logical treatment is to reduce this relative lengthening either by lengthening the posterior elements or shortening the anterior elements. This may be achieved by anterior lumbar wedge osteotomy or by epiphysiodesis; and correction of lumbar lordosis can improve a thoracic scoliosis

1 . A case of parosteal osteoma with histologically low-grade sarcomatous areas is described. 2. Arteriography revealed abnormal arteries, the histological appearances of which are described. 3. Vascular shunts indicative of low-grade malignancy were also seen. 4. Reasons are given for accepting the view that this lesion is a tumour, originally benign, but liable to the development of low-grade malignancy

1. The lesions chiefly responsible for persistent pain and weakness after acromio-clavicular dislocations are tears of the trapezius and deltoid muscles. 2. These tears cannot be adequately treated except by open operation. 3. There are often physical barriers making closed manipulative reduction impossible. 4. Open reduction and repair of torn ligaments and muscle is advocated for manual workers

1. A case of fibrous dysplasia in a woman aged fifty, with unilateral skeletal lesions, cutaneous pigmentation and possibly accelerated skeletal growth, is described. 2. At necropsy, the bony changes were found to be complicated by many of the changes of lipoid granulomatosis. Disseminated plaques of demyelinisation were found in the central nervous system. 3. The implications of the case are discussed