1. The case history of a haemophiliac in whom a large haematoma of the thigh was treated by amputation of the limb is described. 2. Examination of the available radiographs and of the histology led to the conclusion that the cyst was subperiosteal in origin. 3. Evidence is presented to support the hypothesis that haemophilic pseudotumours are always associated with subperiosteal haemorrhage, and that those haemophilic cysts which are confined to muscle have little or no effect on the adjacent bone

1. Two successive movements at a joint, if not in one and the same plane, constitute a diadochal movement. 2. Diadochal movements impose conjunct rotation upon the bone which has been moved. This may be countered by a rotation of opposite sense. 3. All muscles of a given joint are, therefore, rotators in some degree. 4. Upon the basis of these principles diagnostic and therapeutic suggestions are made

We treated 15 patients with atrophic nonunion of a diaphyseal fracture of the humerus with an associated bony defect using an autogenous cancellous bone graft and a plate to bridge the defect. There were nine men and six women with a mean age of 48 years. The mean length of the bony defect was 3 cm. At a mean follow-up of 30 months only one fracture failed to unite. This suggests that, in the presence of a well-vascularised envelope of muscle, the application of an autogenous cancellous bone graft in conjunction with a bridging plate represents a good alternative to more demanding surgical techniques

1. A technique of arthrodesis of the trapezio-metacarpal joint of the thumb is described. Primary fusion was achieved in thirty-six of thirty-nine cases. 2. Compensatory movement at the adjacent joints permits a good range of thumb movement. 3. Trapezio-metacarpal arthrodesis is the operation of choice for patients under fifty with isolated osteoarthritis of this joint. It is also useful for stabilising the thumb in patients with paralysis of the thumb when adequate muscles for transfer are not available

We describe a method for approaching the lower cervical and upper thoracic spine, the brachial plexus and related vessels. The method involves the elevation of the medial corner of the manubrium, the sternoclavicular joint, and the medial half of the clavicle on a pedicle of the sternomastoid muscle. We have used this exposure in 17 cases with few complications and good results. Its successful performance requires high standards of anaesthesia, surgical technique and postoperative care

We treated 11 patients with chronic osteomyelitis of the tibia or the foot by local excision and transfer of a peroneal myocutaneous island flap. This flap, pedicled proximally or distally on the peroneal artery and veins, provides viable muscle to fill the dead space in bone and skin to close the defect. Ten patients reviewed more than three years after operation were all free of drainage with no clinical or radiographic evidence of recurrence

The imaging techniques available to aid the diagnosis of ruptures of tendo Achillis, the rotator cuff and the tendon of tibialis posterior in rheumatoid patients are well described. However, ruptures of tendon or muscle at other sites are uncommon and may be overlooked. Diagnosis is often made by localised tenderness, swelling and a lack of active movement associated with a palpable defect. Clinical examination may be inconclusive and can be aided by imaging studies. We report two cases in which ruptures of a tendon were suspected, and ultrasound imaging demonstrated the palpable defect to be a cleavage plane in the subcutaneous fat – a ‘fat fracture’

Eight children with paralytic drop foot after intramuscular injections later developed gluteal fibrosis. Sciatic palsy, presenting as equinovarus or equinus deformity, was diagnosed on average 3.8 months after the intragluteal injections, but gluteal fibrosis was not diagnosed until 5.1 years after the injections. In three patients the equinovarus recurred after surgical correction due to persistent muscle imbalance and the effect of the external rotation contracture of the hip

1. Tarsal coalition often presents with the clinical picture of a peroneal spastic flat foot, but may present with a painful varus foot and spasm of the tibial muscles. 2. Three cases of tibialis spastic varus foot are described with a calcaneo-navicular bar as the associated anomaly. 3. Complete excision of the bar with interposition of the origin of the extensor digitorum brevis muscle appears to be a satisfactory method of treatment when carried out at a sufficiently early age

1. The indications for and technique of posterior iliopsoas transplantation are described with particular reference to paralytic dislocation and subluxation of the hip in children. 2. Experience of 150 operations in ninety-five patients and of the long-term results of forty-one operations are given. 3. Reduction of the dislocation has been maintained in every case even when there was complete paralysis of all gluteal muscles. 4. All the children are able to walk without the aid of hip splintage

Aims

The present study investigated the five-year interval changes in pseudotumours and measured serum metal ions at long-term follow-up of a previous report of 28 mm diameter metal-on-metal (MoM) total hip arthroplasty (THA).

Objectives

Osteoporosis is a metabolic disease resulting in progressive loss of bone mass as measured by bone mineral density (BMD). Physical exercise has a positive effect on increasing or maintaining BMD in postmenopausal women. The contribution of exercise to the regulation of osteogenesis in osteoblasts remains unclear. We therefore investigated the effect of exercise on osteoblasts in ovariectomized mice.

We compared joint proprioception in 12 hips in 12 patients with hemiarthroplasty after fracture of the hip, in 12 hips in 11 patients with total hip arthroplasty because of osteoarthritis and in a control group of 12 age-matched patients with no clinical complaints. There was no significant difference (p = 0.05) in joint proprioception in any of the groups. There was no decrease in joint proprioception in the group with total hip arthroplasty compared with the hemiarthroplasty group or with the control group. Other factors such as stretch receptors in the adjacent tendons and muscles may have a greater influence on proprioception in the hip than the intracapsular components

1. A specially designed splint is described with which it is possible to maintain the reduction of a paralytic dislocation in a child with spina bifida cystica. The results of its use in a series of thirteen cases are recorded. 2. It is suggested that all such children presenting in the first year of life, in whom the power of the flexor and adductor muscle groups is preserved, should be treated initially in this way until the prognosis for the individual can be accurately assessed. 3. The theoretical implications of the findings are discussed

We report 12 patients with infiltrating muscular lipomas of the lower limbs all treated by wide resection. During follow-up averaging seven years, the tumour recurred in five patients. Our results and those reported by others suggest that, in order to avoid recurrence, this tumour, although benign, should be treated by total excision of the muscle or by compartmental resection. Hormonal imbalance was suspected in 9 of the patients but an oestrogen receptor analysis of the histological samples proved negative

Eleven patients with arthrogryposis multiplex congenita neurologica have been reviewed. Distinct patterns of deformity and muscle activity were identified which have been correlated with specific levels of segmental neurological motor deficit without sensory loss. The clinical picture was consistent with localised lesions of the anterior horn cell cell columns. This finding agreed with the recorded pathological lesions. Orthopaedic treatment should take account of the paralytic nature of the deformities

Eleven thoracoscapular fusion operations have been done on six patients. The indication is symptomatic winging of the scapula caused by thoracoscapular muscle paresis with intact function in the deltoid. This situation almost exclusively occurs in facioscapulohumeral dystrophy. The operation is successful in achieving stability of the scapula and in greatly improving function and cosmesis. Although the course of this type of muscular dystrophy is variable, the benefits of operation have not deteriorated with progression of the disease over a maximum follow-up period of twenty-three years

Ultrasound was used to observe the entire course of spontaneous reduction of CDH in the Pavlik harness in nine infants. In six infants with Suzuki type-A dislocations, the femoral head settled slowly into the bottom of the acetabulum by gliding on its posterior wall. In type-B dislocations, passive abduction of the legs during sleep caused it to approach the entrance to the socket and then suddenly to slip in. Reduction with the Pavlik harness is due to passive mechanical factors, and occurs only during muscle relaxation in deep sleep: no active movement is involved