Biomedical subjects
Publications and source records attributed to A A Sherwood.
A bolt-plate device for fixation of distal thoracic and proximal lumbar vertebral bodies has proved effective in a variety of surgical situations. The instrumentation is designed to obtain the optimum conditions for the healing of cancellous bone, namely, rigid immobilization and, if possible, close apposition of surfaces. The device may also be effectively employed to protect grafts used to replace a vertebral body.
This report is concerned with a male motor bike rider who was injured in a collision with a semi-trailer in June 1974. As a result of his injuries he had his right arm amputated, his right knee restricted, and his right foot partially amputated and pinned. This article presents the subsequent management of the patient which was aimed at achieving an acceptable foot and preventing further breakdown in other body linkages. The design of appliances and treatment were carried out by the physiotherapist, the chiropodist, and the bioengineer.
Spinal mobility in chondrodystrophoid and nonchondrodystrophoid animal has been studied radiographically. Movement at the lumbo-sacral articulation is approximately three times greater than at other levels in the lumbar spine. The L7-L6 articulation is the second most mobile level. Movement at other lumbar segments is approximately equal. The range of motion is closely similar for both skeletal types which suggests that this factor alone is not of crucial importance in the aetiology of intervertebral disc disorder in chondrodystrophoid animals.
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