1. An account is given of a family in which five members in three generations were affected by osteochondritis involving the hips, in three cases bilaterally. 2. One patient showed aseptic osseous necrosis of the epiphyses of the ankles and fingers. 3. The differential diagnosis between Perthes' disease and multiple epiphysial dysplasia is discussed, but it is not certain into which category these patients fall. 4. The assistance of a family history and skeletal survey in diagnosis is illustrated

Five children with congenital pseudarthrosis of the tibia treated by free vascularised fibular grafts were followed up until skeletal maturity. The ipsilateral fibula was used in four cases, the contralateral fibula in one. All our cases achieved bone union, but leg length discrepancy, atrophy of the foot and ankle stiffness were frequent complications, due perhaps to the many previous operations. Vascularised fibular grafting might achieve better results if it were done as the primary procedure

We report the results of a three-year study of bifocal fractures of the tibia and fibula, excluding segmental shaft fractures. In our whole series, these formed 4.7% of all tibial diaphyseal fractures. We describe three groups: bifocal fractures of both the proximal and the distal joint surfaces, fractures of the shaft and tibial plateau, and fractures of the shaft and ankle. These groups of fractures had different characteristics and prognoses. We discuss treatment protocols for each of these three groups

Congenital vertical talus was diagnosed in 15 feet of 10 children, and was treated by operative reduction. Forefoot deformity was corrected first, using anterolateral soft-tissue release on 11 feet, and manipulation alone in four feet. After prolonged immobilisation in plaster the affected feet had posterior release at the ankle and elongation of the calcaneal tendon. Clinical and radiographic examination at follow-up 15 months to 21 years later showed that a satisfactory outcome had been achieved in 12 of the 15 feet

Between 1993 and 2000 we implanted 200 cementless, mobile-bearing STAR total ankle replacements. None was lost to follow-up for reasons other than the death of a patient. The mean follow-up was for 46 months (24 to 101). A complication requiring further surgery developed in eight ankles and 14 were revised or fused. The cumulative survival rate at five years was 92.7% (95% CI 86.6 to 98.8) with time to decision to revision or fusion as an endpoint. The most frequent complications were delayed wound healing and fracture of a malleolus. These became less common with experience of the operation. The radiological appearance of the interface of the tibial implant was significantly related to its operative fit and to the type of bioactive coating

The results of triple arthrodesis performed in 80 feet and followed for an average of 13 years are reviewed. Although the majority of patients were very pleased, the results of objective assessment were less favourable. There was a high incidence of degenerative joint changes in the ankle and midfoot and also of pseudarthrosis, avascular necrosis of the talus and residual deformity. Pre-operative rigid equinovarus deformity produced the majority of the poor results. It is suggested that bony resection alone might not be the best means of correcting severe equinus

Aims

Intra-articular ⁹⁰Yttrium (⁹⁰Y) is an adjunct to surgical treatment by synovectomy for patients with diffuse-type tenosynovial giant-cell tumour (dtTGCT) of the knee, with variable success rates. Clinical information is, however, sparse and its value remains unclear. We investigated the long-term outcome of patients who underwent synovectomy with and without adjuvant treatment with ⁹⁰Yttrium.

An alternative to Syme's amputation for congenital absence of the fibula is described in this paper. Nine children have had the ankle reconstructed using the Gruca technique with a very satisfactory result in eight. This procedure is not suitable for every patient and in most unilateral cases the operation can only be regarded as an interim procedure because of progressive leg-length inequality. The decision to remove the foot may be delayed and it allows childhood to be spent without resort to prostheses. However, the procedure can be considered as the definitive operation in cases of bilateral deformity

1. A clinical and radiological survey has been made of the families of thirty-one patients with peroneal spastic flat foot and tarsal coalition (twenty-seven calcaneo-navicular, four talo-calcaneal). 2. Thirty-nine per cent of ninety-eight first degree relatives were found to have some type of tarsal coalition. 3. A surprise finding was that not one of the first degree relatives had ever had symptoms referred to the tarsus. 4. No case of "ball and socket" ankle joint or of carpal coalition was found in this series

1. Eleven cases of congenital flat foot were studied, five of which are illustrated. 2. Ten of these cases were treated in infancy and followed for at least three years. In two cases the follow-up period was ten years and fifteen years. 3. An essential component of the deformity is equinus of the calcaneus, and treatment consisted of correction of the forefoot deformity by repeated manipulation, followed later by elongation of the calcaneal tendon and capsulotomy of the ankle. 4. The importance of recognising the deformity and beginning treatment in infancy is stressed

1 . This case of post-traumatic osteochondritis of the lower tibial epiphysis is important because the condition is rare. 2. The similarity to osteochondritis in other sites dating from a single injury is noted. 3. The ankle joint bears more body weight per surface area of articular cartilage than other weight-bearing joint surfaces. It is of interest that regeneration took place in spite of the fact that the child continued to bear weight and that the joint was immobilised for only two months, beginning four months after the original injury

We examined 16 feet, 33 to 133 months (mean 83) after simultaneous calcaneocuboid and talonavicular fusions performed for a variety of painful disorders of the hindfoot. Objectively, four feet were rated excellent, eight good, four fair and none poor. There was one asymptomatic nonunion of the talonavicular joint. Progressive degenerative arthritis of the ankle was seen in six patients and of the naviculocuneiform joint in seven. Biomechanically, simultaneous calcaneocuboid and talonavicular arthrodesis is better than an isolated talonavicular fusion and is a simple and effective alternative to triple arthrodesis

Aims

Various radiological parameters are used to evaluate a flatfoot deformity and their measurements may differ. The aims of this study were to answer the following questions: 1) Which of the 11 parameters have the best inter- and intraobserver reliability in a standardized radiological setting? 2) Are pre- and postoperative assessments equally reliable? 3) What are the identifiable sources of variation?

1. Further consideration has been given to the lateral rotation which occurs at the ankle joint in uncorrected club feet. 2. Medial rotation osteotomy of the tibia may be used to restore more normal alignment to the hind foot at the expense of an increase in varus of the forefoot, which must be corrected at a second operation. 3. The early results in seven feet treated in this manner are reported. 4. We hope that this paper will be regarded more as a contribution to the understanding of the anatomy of uncorrected club foot than as advocacy of a new method of surgical treatment

1. Stretching of the tibial nerve cut 2 centimetres above the ankle has been the subject of an experimental study in rabbits. 2. The effects on intraneural microcirculation, on vascular permeability, and on the barrier function of the perineurium have been analysed with the aim of determining the extent to which a divided nerve can be stretched without interfering with the process of repair. 3. The results obtained may prove valuable for understanding basic mechanisms and for establishing certain important limitations when end-to-end suture of a nerve trunk is performed under some degree of tension in man

1. By reducing the viscosity of the synovial fluid within the ankle joints of rabbits and then subjecting these to prolonged exercise, wear and tear of articular cartilage can be consistently produced. 2. This finding is an indirect confirmation of the view that fluid film lubrication is an important factor in the mechanical efficiency of joints. 3. The special properties of synovial fluid and articular cartilage that allow fluid film lubrication to exist within joints that are, in effect, slowly moving, heavily loaded, reciprocating bearings are discussed. They account for the remarkable resistance to wear and tear exhibited by synovial joints under physiological conditions

In the 1950s Frederick Dwyer evolved the concept of treating resistant and relapsed clubfoot by osteotomy of the calcaneum. He published the results of his medial opening wedge procedure in 1963 with a mean follow-up of five years. We present the structured, radiographic and functional results at a mean elapsed time of 27 years of 36 feet (26 patients) all operated on by Dwyer. Their mean Laaveg and Ponseti (1980) grading was 83.7%. In 94% the heel was in neutral or valgus and 86% of the feet were plantigrade. A good range of movement was present in the ankle and subtalar joints in 83%

Until recently the accepted treatment of choice for severe type-II fibular hemimelia has been Syme’s or Boyd’s amputation. The alternative of distraction lengthening using the Ilizarov technique is now available. We report three patients (four limbs) with type-II fibular hemimelia who were treated by the Ilizarov technique and followed up for two to six years. Severe progressive procurvatum and valgus deformity of the tibia and valgus deformity and lateral subluxation of the ankle were found in all four limbs. Multiple additional soft-tissue and bony surgery was necessary. In view of these problems we feel that reappraisal of the indications for lengthening in type-II fibular hemimelia is necessary