Biomedical subjects
D H Jenkins
Publications and source records attributed to D H Jenkins.
Stabilization of a dislocating spastic hip with a carbon fiber ligament.
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Pharmacy technician-coordinated system for handling floor stock medications.
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An epizootic of blindness and encephalitis associated with a herpesvirus indistinguishable from equine herpesvirus I in a herd of alpacas and llamas.
Blindness characterized by dilated unresponsive pupils and funduscopic evidence of varying degrees of vitritis, retinal vasculitis, retinitis, chorioretinitis, and optic neuritis developed in 21 alpacas and 1 llama within a 30-day period. The animals were part of a group of approximately 100 animals imported from Chile one year earlier. The animals had spent 6 months in quarantine and then, for the 6 months preceding the epizootic, were housed at an exotic animal import-export farm, where the disease developed. Four of the affected animals also had signs of neurologic dysfunction. A herpesvirus indistinguishable from equine herpesvirus I was isolated from 4 of the affected animals, and antibody titers diagnostic for equine herpesvirus I were demonstrated in the serum of all but one of the affected animals.
Carbon fibre reinforcement for chronic lateral ankle instability.
Flexible carbon fibre implants have been used in 40 cases of chronic ankle instability. The carbon fibre implant permits retention of inversion, does not interfere with peroneal function and is simple to insert. Thirty-seven cases were available for review 46 months after surgery. In 35 cases normal stability had been restored, and 22 patients continued to have an excellent result when reviewed. In 13 cases the implant was subsequently removed, and where no other stabilizing operation was carried out instability recurred. The problems necessitating implant removal have been recognized, and the technique modified to prevent their recurring.
Carbon fibre used in the late reconstruction of rupture of the extensor mechanism of the knee.
Carbon fibre may be used to repair rupture of the extensor mechanism of the knee when this involves either the patellar ligament or quadriceps tendon. The operative technique is described and the results in five patients are reviewed. This technique may be successful even after other forms of repair have failed.
FDA applications--in relation to carbon fibre.
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ABC of spinal cord injury.
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Ligament induction by filamentous carbon fiber.
On the basis of eight years of experimental and clinical investigations, the author recommends carbon fiber on a trial basis to patients with chronic ligamentous instability and where function has been severely compromised because of the injury.
Flexible carbon fibre in late ligamentous reconstruction for instability of the knee.
Sixty-three knees with chronic ligamentous instability treated with flexible carbon fibre are reviewed. Assessment was by pre-operative and postoperative grading of function in work and sport, together with a subjective evaluation of the result based on stability. Fifteen knees had collateral repairs, seven had cruciate repairs and 41 had combined collateral and cruciate repairs. Overall, 71% of knees showed improvement in function and 67% had good or excellent results subjectively. Clinical examination did not correlate well with the patient's evaluation of the result. Nineteen unselected cases with intra-articular (cruciate) carbon fibre had arthroscopies. Infiltration of collagen tissues into the cruciate replacement was a slower process than at the extra-articular (collateral) site. There was no clinical or macroscopic evidence of synovitis but microscopically there was evidence of synovial irritation.
Late repair of the calcaneal tendon with carbon fibre.
Ruptures of the calcaneal tendon which present late may be repaired using carbon fibre to induce a neotendon. The operative technique is described and the results of five cases reviewed. The average muscle power obtained was 88% of normal, and the thickness of the neotendon was 148% of that of the normal side. It would appear that this tendon formation in man is comparable to that previously described in sheep.
[Alloplastic ligament replacement with carbon fibers--clinical use and results].
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[Ligament replacement with carbon fibers in the animal experiment].
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Clinical applications of carbon fibre and results.
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Ligament replacement in experiments on animals.
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Comments on the new geometric approach to cephalometrics: a reply to Dr. Vig.
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A dynamic geometry for predicting growth of gross craniofacial morphology.
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Aggressive surgical treatment of secondary spinal deformity in spina bifida children--is it worthwhile?
The results of sixty-five surgical corrections of secondary spinal deformities in spina bifida children are reported. Twenty-three patients had kyphectomies, and thirty-nine patients had anterior and posterior spinal fusions for scoliosis. There were three deaths. Patients in both groups showed functional improvement, though the effects on respiratory function were minimal. Patients with scoliosis should have their surgery before the curve reaches 100 degrees. Correction in these patients may have to be carried out very early if there is rapid curve progression. Kyphectomy ideally should be carried out between the ages of ten and fourteen years when bone size and quality are suitable for fixation.