The clinical, radiological and pathological features of hallux rigidus affecting nine toes (in seven patients) are described. Characteristic chondral and osteochondral lesions are seen to occur at a specific site on the metatarsal head, and account for the limitation of dorsiflexion but relatively unrestricted plantarflexion typical of hallux rigidus. Radiologically these lesions are often missed because they are mainly cartilaginous and are later obscured by secondary degenerative changes. Histological evidence indicates a traumatic aetiology and a mechanism of injury is suggested

We reviewed 27 patients with small-fragment fractures or osteotomies treated by internal fixation with absorbable self-reinforced poly-L-lactide pins. The follow-up time ranged from eight to 37 months. The two most common indications were chevron osteotomy of the first metatarsal bone for hallux valgus and displaced fracture of the radial head. No redisplacements occurred, and there were no signs of inflammatory foreign-body reaction. Biopsy in two patients 20 and 37 months after implantation showed that no polymeric material remained

Most techniques described for the correction of hallux valgus require exposure of the distal aspect of the first metatarsal. A dorsomedial incision is often recommended. Texts counsel against damaging the dorsal digital nerve, as a painful neuroma is an unwelcome surgical complication. Our study on cadavers aimed to investigate the anatomy of the dorsomedial cutaneous nerve in the metatarsophalangeal region, with special reference to surgical incisions. A constant, previously unrecognised branch of the nerve was identified. This branch is likely to be damaged if a dorsomedial approach is used. It is recommended that a mid-medial incision be used instead, i.e. at the junction of the plantar and dorsal skin

We report a case of multicentric massive osteolysis. A 52-year-old woman presented with a three-year history of progressive deformities of the hands. She had osteolytic lesions of the metacarpals and metatarsals, and resorption of the terminal phalanges. During follow-up over four years osteolysis spread to affect the ribs, clavicles, mandible, and long bones. There was no family history of any bone disorder and renal function was normal. Death resulted from resorption of the rib cage and post-mortem studies failed to reveal the cause of the osteolysis

1. The syndrome here described in six Bulgarian subjects is characterised by partial duplication of the foot or diplopodia, combined with either hyperplasia or aplasia of the tibia. The accessory elements are located along the medial border of the "normal" foot and consist of two or three toes with related metatarsal and tarsal bones. The fibula is not directly involved. 2. No evidence of familial inheritance was found in these cases. 3. Various reconstructive measures and the place of amputation of the whole foot are discussed in the course of the six case reports

A review is presented of 508 feet in 310 patients after telescoping osteotomy of the lesser metatarsals for metatarsalgia. The patients were predominantly female (80%), with a mean age of 55 years; the range of follow-up was 1 to 12 years. In 22% of the patients the metatarsalgia was associated with rheumatoid arthritis. Improvements in assessment and modifications in technique are reported and the management of complications is discussed. The results show that telescoping osteotomy for established cases of pressure metatarsalgia is a simple and reliable operation. Permanent relief of symptoms can be expected in over 80% of patients

1. A method is described for measurement of the vertical load carried by different areas of the foot while walking barefoot. The results of tests on fourteen subjects, seven with some foot abnormality, are reported. 2. The results show that the load carried by the normal midfoot is low. Measurements in this area could be useful in the quantitative assessment of some foot abnormalities. 3. Considerable variation between individuals is seen in the distribution of vertical load across the forefoot. The metatarsal bones do not necessarily carry loads in proportion to their size

We report a case of systemic intraosseous lipomatosis involving the proximal femur, both ends of the tibia, and the tarsal and metatarsal bones. The lesions progressed during a five-year follow-up with a pathological fracture of the tibial plateau. CT scans were characteristic and helpful in diagnosis but MR imaging added little information. Intraosseous lipomatosis is a hamartomatous malformation due to hyperplasia of adipose tissue, and is fundamentally different from solitary benign intraosseous lipoma. Management involves reconstruction of any pathological fracture. Large progressive lesions should be treated by curettage and grafting in an attempt to prevent such fractures

Aims

Infected and deformed neuropathic feet and ankles are serious challenges for surgical management. In this study we present our experience in performing ankle arthrodesis in a closed manner, without surgical preparation of the joint surfaces by cartilaginous debridement, but instead using an Ilizarov ring fixator (IRF) for deformity correction and facilitating fusion, in arthritic neuropathic ankles with associated osteomyelitis.

1. The natural history of cryptococcal infection is discussed in relation to the findings in a woman of fifty-six with lesions in the right radius and right fourth metatarsal. A diffuse lesion found in the right lung with a calcified gland at the right hilum was believed to represent the initial site of infection. 2. There was a general tendency for normal bone architecture to be restored after the destructive phase of the disease had finished. 3. Specific treatment with the fungicide amphotericin B had to be stopped because of severe systemic reaction. 4. The significance of the rare association of Boeck's sarcoid with torulosis is discussed

1. The etiology of hallux rigidus has been studied by an examination of ten adolescent and four adult patients. 2. Although osteochondritis dissecans of the metatarsal head has been seen in two cases, our evidence generally suggests that metatarsus primus elevatus is the important etiological factor in established hallux rigidus. 3. The common factor for the production of symptoms is the limitation of dorsiflexion of the first metatarso-phalangeal joint, just as the key to treatment is the existence of a good range of plantar-flexion of the joint. 4. The technique and results of the operation of phalangeal extension osteotomy for hallux rigidus are given

1 . The principles and technique of flexor-extensor tendon transfers for claw toes are described. The operation is tedious, but it is effective in selected cases. 2. Sixty-eight patients have been operated upon and followed up; good results were obtained in fifty, fair results in eleven, and poor in seven. More careful selection and better operative technique might have avoided some of the failures. 3. The operation restores useful function to the toes at the cost of their prehensile action, diminishes any cavus deformity of the foot, and, by lessening the prominence of the metatarsal heads in the sole, avoids callosities and discomfort

1. The occurrence of multiple centres of ossification in the epiphyses of the long bones of the hand and foot is shown to be frequent, and in the first metatarsal and first proximal phalanx of both hand and foot in both sexes the normal pattern of epiphysial ossification must be regarded as taking place in this way. 2. Multiple centres of ossification are shown to occur simultaneously in several epiphyses of the same hand or foot. 3. There seems to be a relationship between the shape of an epiphysial area and the pattern of ossification occurring within it. 4. Care should be taken to avoid confusing these normal patterns of ossification with radiological appearances caused by pathological changes

The right sciatic nerve of 50 one-month-old male rats was cut under general anaesthesia. Groups of animals were sacrificed at intervals of up to 12 weeks after operation and the length of the femora, tibiae and first and fifth metatarsals were measured with a caliper accurate to 0.05 mm. From the first week, both metatarsals were between 3% and 5% shorter on the denervated side, but there was no further increase of the discrepancy. The femora were less than 1% longer in the denervated limb at the second and eighth week. No difference was found between the lengths of the tibiae. The various factors which could possibly be responsible for these findings are discussed

Seven patients with stress fractures of the femoral neck were treated at the Military Hospital of Thessaloniki, Greece between 1972 and 1976. Their average age was 22 years. Stress fractures of the femoral neck are not as common as stress fractures of the metatarsals or tibia and other bones. Intense muscular activity was the main cause of these stress fractures which were only classed as such in the absence of any injury. Pain and stiffness around the hip were reported by all seven patients before admission. Results of laboratory investigations of the patients' alkaline phosphatase and serum calcium levels were normal. One patient received surgical treatment and the other patients were treated conservatively. Healing was uneventful in all

The intermetatarsophalangeal bursa was investigated by dissection, radiography and injection. In the web spaces between the second and third and the third and fourth digits the bursa lies superior to the transverse metatarsal ligament but projects distally to it, closely applied to the neurovascular bundle. Tissue from the web spaces of patients with classical Morton's metatarsalgia often shows lymphocytic infiltration, with additional fibrinoid necrosis of the bursal wall. It is suggested that inflammatory changes in this bursa could account for the pathological and histological findings in this condition. The bursa in the most lateral web space does not extend beyond the ligament and is not in contact with the neurovascular bundle, which may explain the rarity of symptoms in this space

Aims

Bone demonstrates good healing capacity, with a variety of strategies being utilized to enhance this healing. One potential strategy that has been suggested is the use of stem cells to accelerate healing.

1. The epiphyses of the metatarsal heads of 250-gramme rabbits were separated at the zone of cell columns, stripped of perichondrium, labelled with tritiated thymidine and transplanted into the back muscles of the same animals. 2. Endochondral ossification started in the grafts at four days, was well established by seven days and progressed until fourteen days, the end of the study. 3. Progressive passage of the label down the zone of cell columns and into the hypertrophic zone was observed. 4. The tritiated-. 3. H thymidine label had disappeared from the cartilage cells by ten days. No labelling was observed in the bone cells at any stage. 5. It was not possible to demonstrate from the experiment that growth plate chondrocytes are precursors of osteoblasts in the process of endochondral ossification in rabbits

Aims

The purpose of this study was to: review the efficacy of the induced membrane technique (IMT), also known as the Masquelet technique; and investigate the relationship between patient factors and technique variations on the outcomes of the IMT.

1. A group of cases is presented in which the os intermetatarseum took the form of an intermetatarsal spur, from which (in members of one family) there arose a tendon-like structure whose distal attachment was to the lateral aspect of the proximal phalanx of the great toe. The suggestion is made that this may represent a lost first plantar interosseous muscle. 2. Another effect of the presence of an os intermetatarseum is the production of metatarsus primus varus by its action as a wedge which spreads apart the bases of the two metatarsal bones. A very small wedge may at times produce considerable deviation (Case 4), and resection of the os can result in satisfactory correction. 3. It is also felt that over-development of extensor hallucis brevis may at times contribute to the formation of hallux valgus