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Biomedical subjects

R W Gaines

Publications and source records attributed to R W Gaines.

46 records · Page 3Linked to original sources
PubMed1984

Stabilization of thoracic and thoracolumbar fracture-dislocations with Harrington rods and sublaminar wires.

Seventeen unstable thoracic and thoracolumbar fracture-dislocations have been treated by Harrington double-distraction rod technique supplemented by doubled 18-gauge stainless-steel wires applied to two intact laminae above and below the injury. Fourteen of the 17 cases were grossly comminuted and translated beyond 50% of the width of the spinal column. No external bracing was used in the 13 patients with neurologic deficits. At the time of follow-up examinations (greater than 22 months in all patients) there was no loss of reduction or fixation in any patient. Solid fusion was achieved in all patients.

Adolescent↗
PubMed1984

Experimental evaluation of Harrington rod fixation supplemented with sublaminar wires in stabilizing thoracolumbar fracture-dislocations.

Segments of the spinal column of calves were instrumented with Harrington rods with and without sublaminar wires. Grossly unstable lesions were created by resecting a 2-cm segment from the central spinal segment. Testing on an Instron tester documented the improvement in stability provided by the sublaminar wires in this grossly unstable experimental fracture. Improved stability was seen in resisting axial loading, lateral bending, and forward flexion loading. Rotational stability was particularly improved.

Animals↗
PubMedDate not supplied

Benefits of the Harrington compression system in lumbar and thoracolumbar idiopathic scoliosis in adolescents and adults.

Adolescent and adult scoliosis exhibits deformity present in all three planes of orientation, but the principal correcting effect of the Harrington distraction system is in the frontal plan. Sagittal and horizontal deformity was addressed by adding the compression system. Twenty patients were treated with combined apparatus. The mean preoperative frontal curve was 52 degrees, and the mean postoperative curve was 16 degrees. The average preoperative tilt angel was 31 degrees, and the average postoperative angle was 8 degrees. Thoracolumbar kyphosis was reduced, and lumbar lordosis was maintained. The combined apparatus addresses the triplanar curvature more effectively than the single distraction system.

Adolescent↗
PubMedDate not supplied

Effect of the Harrington compression system on the correction of the rib hump in spinal instrumentation for idiopathic scoliosis.

To analyze the effect of the Harrington compression system on the rib hump in thoracic idiopathic scoliosis, intraoperative measurements were made on 21 cases during correction with the distraction system and after addition of the compression system. The data show that the compression system makes a major contribution to the correction of total rib deformity in over two-thirds of the patients, and the correction of the rib valley is much more significant than correction of the rib hump. Analysis of postoperative spine roentgenograms seems to indicate that the extent of the rib correction does not correlate with spine derotation as measured by the system of Nash and Moe. The improvement in rib correction achieved by addition of the compression system appears to result from changes centered about the costovertebral joints.

Adolescent↗
PubMedDate not supplied

A new orthosis for immediate postoperative bracing in idiopathic scoliosis.

The "crutch-type scoliosis brace" and the KSO are leather covered aluminum braces, which have been successfully used in treating scoliosis patients at the Kosair Spinal Deformity Center both nonoperatively and postoperatively. This report defines the measurements, materials, and construction details for effective use of these braces and reports the very encouraging results of the KSO in a group of instrumented idiopathic scoliotic patients.

Adolescent↗