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The Journal of Bone & Joint Surgery British Volume
Vol. 72-B, Issue 2 | Pages 288 - 292
1 Mar 1990
Pozo J Powell B Andrews B Hutton P Clarke J

We reviewed 35 patients who had an amputation following the failure of treatment for severe lower limb trauma. Seven of the amputations were for ischaemia, within one month of injury; 13 were between one month and one year for infection complicating loss of wound cover in un-united fractures; and 15 were later than one year after injury, mainly for infected non-union. The latter group of patients had had an average of 12 operations and 50 months of treatment, including eight months in hospital. We used a new limb injury score based on damage to the individual tissue elements; this indicated that, even in the absence of neurovascular injury, the presence of severe damage to skin, bone and muscle, with wound contamination, particularly in the lower tibia, had a poor prognosis. We therefore recommend, to avoid multiple operations, with prolonged hospitalisation and suffering, that these patients should have early independent review by orthopaedic and plastic surgeons with the aim of establishing an accurate prognosis for the salvage of a useful limb.


The Journal of Bone & Joint Surgery British Volume
Vol. 71-B, Issue 1 | Pages 118 - 120
1 Jan 1989
Lewis S Pozo J Muirhead-Allwood W

We reviewed seven patients with coronal fractures of the lateral femoral condyle and studied the mechanism of injury and the radiological features. The influence of soft tissue attachments on the displacement and the blood supply were investigated by clinical and cadaveric studies. All three fractures which were initially undisplaced lost position early during conservative management. Internal fixation gave good results at review, and is recommended to avoid the risk of malunion and possible secondary osteoarthritis.


The Journal of Bone & Joint Surgery British Volume
Vol. 69-B, Issue 2 | Pages 220 - 228
1 Mar 1987
Pozo J Cannon Catterall A

Forty-four patients who had undergone 50 capsular arthroplasties for congenital dislocation of the hip were reviewed after a mean follow-up of 20 years. Their average age at operation was 5.9 years; 31 of the operations were undertaken because of late presentation, the remainder because of the failure of previous surgery. In all, 70% of the hips showed good function despite a reduced range of movement, but patients with bilateral arthroplasties fared poorly. Excellent containment within the acetabulum was found in 80%, but the femoral head was always abnormally high though not unduly lateral or medial. This configuration had remained unchanged during follow-up. The accuracy of reduction along the mediolateral axis was the only variable found to influence the outcome significantly. Functional deterioration, associated with pain, was noted to be more common after 20 years than before, and was associated with radiographic evidence of joint degeneration.


The Journal of Bone & Joint Surgery British Volume
Vol. 68-B, Issue 3 | Pages 350 - 356
1 May 1986
Crockard H Pozo J Ransford A Stevens J Kendall B Essigman W

Cervical myelopathy is an uncommon but potentially fatal complication of rheumatoid atlanto-axial subluxation. Computerised myelotomography with three-dimensional reconstruction shows that rheumatoid pannus, together with the odontoid peg, contributes significantly to anterior cervico-medullary compression. These findings were the basis for treatment by transoral anterior decompression and posterior occipitocervical fusion, which removes both bony and soft-tissue causes of compression and allows early mobilisation without major external fixation. We report encouraging results from this combined approach in 14 patients who had progressive neurological deterioration.


The Journal of Bone & Joint Surgery British Volume
Vol. 68-B, Issue 2 | Pages 173 - 177
1 Mar 1986
Ransford A Crockard H Pozo J Thomas N Nelson I

Rigid posterior fixation of the skull to the third, fourth and fifth cervical vertebrae was achieved in three patients who, as a result of operation, had gross instability of the craniocervical junction. An anatomically contoured steel loop was secured to the occiput via small burr holes and to the vertebrae by sublaminar wiring. This technique has the advantage over bone grafting, either alone or with cement, in that it affords rigid stabilisation, allows early mobilisation and may contribute to eventual bony fusion.


The Journal of Bone & Joint Surgery British Volume
Vol. 66-B, Issue 3 | Pages 386 - 390
1 May 1984
Pozo J Kirwan E Jackson A

A subjective, objective and radiographic study of 21 patients with comminuted calcaneal fractures showing severe involvement of the subtalar joint is reported. The average follow-up was 14.6 years (range 8 to 29 years). Only patients with unilateral closed fractures and no associated injuries to either lower limb were admitted to the study. All were treated by early active mobilisation of the ankle, and the subtalar and the midtarsal joints. Seventy-six per cent of the patients achieved a good result with minor symptoms which did not interfere with their occupation or leisure requirements. Although two-thirds of the patients reached a point of maximal recovery at two to three years, 24% continued to improve for six years. None of the patients experienced any deterioration after this time. Neither the degree of clinical stiffness nor the degeneration of the subtalar joint, assessed radiographically, correlated with the severity of symptoms or functional disability. The role of the soft tissues in the aetiology of residual symptoms is discussed.


The Journal of Bone & Joint Surgery British Volume
Vol. 66-B, Issue 2 | Pages 233 - 238
1 Mar 1984
Pozo J Crockard H Ransford A

Basilar impression is a well-recognised though rare complication of osteogenesis imperfecta. Three patients, all members of the same family, with advanced basilar impression complicating osteogenesis imperfecta tarda, are described. The clinical features in these cases illustrate the natural history of this condition: from asymptomatic ventricular dilatation, through the foramen magnum compression syndrome, to death from brain-stem compression. The radiological criteria on which the diagnosis is based, are defined. Review of the literature reveals only seven previously documented cases, all in patients with mild forms of osteogenesis imperfecta. The unusually low incidence of basilar impression in osteogenesis imperfecta and its apparent restriction to patients with mild forms of the disease is discussed. The examination of close relatives of patients with basilar impression and osteogenesis imperfecta is emphasised in order to anticipate the onset of severe neurological complications.


The Journal of Bone & Joint Surgery British Volume
Vol. 66-B, Issue 1 | Pages 21 - 26
1 Jan 1984
Kirwan E Hutton P Pozo J Ransford A

The clinical presentation and treatment of 18 cases of osteoid osteoma or osteoblastoma of the spine are described, with an average follow-up of 4.2 years (range three months to 11.5 years). The average delay between the onset of symptoms and definitive diagnosis was 19 months. All patients presented with marked spinal stiffness and a painful scoliosis. The lesion was situated in the pedicle in the 15 patients with involvement of the thoracolumbar spine. A surgical approach allowing direct access to the pedicle without entering the spinal canal or jeopardising spinal stability is described. Surgical treatment afforded immediate relief of pain and an early return of full spinal mobility.


The Journal of Bone & Joint Surgery British Volume
Vol. 66-B, Issue 1 | Pages 16 - 20
1 Jan 1984
Ransford A Pozo J Hutton P Kirwan E

The behaviour pattern of the scoliosis associated with osteoid osteoma or osteoblastoma of the spine is described. In patients presenting with symptoms at or around skeletal maturity, the scoliosis is postural. Excision of the lesion ensures complete resolution of the curve. In the growing child, however, an initial postural scoliosis may develop vertebral rotation with structural characteristics. The magnitude of the curve and the associated vertebral rotation is dependent on the time interval between the onset of symptoms and the surgical treatment. Although removal of the lesion usually results in regression of the curve, a prolonged delay in treatment may result in a progressive structural scoliosis. A possible mechanism for the behaviour of the scoliosis is discussed.