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Biomedical subjects

T R Highland

Publications and source records attributed to T R Highland.

7 recordsLinked to original sources
PubMed1992

Changes in isometric strength and range of motion of the isolated cervical spine after eight weeks of clinical rehabilitation.

There have been no reports in the literature objectively measuring changes in strength and range of motion in patients with non-spinal-cord injuries of the cervical spine. Ninety patients participated in an 8-week training study. Diagnostic groups included patients with the following: degenerative disc (n = 6), herniated disc (n = 14), and cervical strain (n = 70). Full-range isometric strength tests were performed at eight equidistant positions in a device that constrained all motion with the exception of cervical flexion and extension. Post tests were performed following training. Significant gains were seen in strength as well as range of motion. Perceived pain was significantly reduced. This kind of testing can potentially provide the clinician with objective findings to direct patient management more adequately.

Cervical Vertebrae↗
PubMed1990

The contribution of the dorsal and ventral roots of the tibial nerve in the propagation of the spinal somatosensory evoked potential in cats.

This study employed selective unilateral dorsal and ventral rhizotomy to examine the contribution of both the dorsal and ventral roots of the tibial nerve in the induction of the spinal somatosensory evoked potential (SSEP) in the cat. The spinal roots of origin of the tibial nerve in the cat were determined by retrograde transport of horseradish peroxidase (HRP). Spinal roots L6, L7, and S1 were found to give rise to the cat tibial nerve. Physiologic monitoring showed that the dorsal roots at these levels primarily contribute to the induction of the SSEP, but the ventral roots also make a small contribution. Because bilateral tibial nerve stimulation was found to mask a root injury on one side, we recommend sequential unilateral peripheral nerve stimulation when using SSEP during operations on the spine.

Animals↗
PubMed1986

Osteomyelitis of the ilium secondary to external pelvic fixation.

Orthopedic surgeons commonly rely on external pelvic fixation in the treatment of pelvic fractures. Superficial pin tract infections have been reported with the use of this fixation, but we found no deep, chronic infections documented in the literature. We report here the case of a 24-year-old man with chronic bilateral iliac osteomyelitis following external pelvic fixation.

Adult↗
PubMed1985

Is immobilization adequate treatment of unstable burst fractures of the atlas? A case report with long-term follow-up evaluation.

The biomechanics and roentgenographic anatomy of the unstable burst fracture of the atlas are well known. A few reports in the literature depict a bony avulsion of the transverse ligament associated with this fracture. However, all patients were treated surgically, so the natural course of this injury is undocumented--in other words, it is not known if the bony avulsion will heal. This is a case report of a 38-year-old woman with burst fracture of the atlas associated with a bony avulsion of the transverse ligament treated nonsurgically. At follow-up examination three years later, the bony fragment had not healed, and atlantoaxial instability persisted. Nonsurgical treatment of this injury may have a role, but surgical stabilization will usually be required after the posterior arch heals.

Adult↗
PubMed1983

Osteomyelitis of the pelvis in children.

We reviewed the records of sixteen patients with osteomyelitis of the pelvis, all of whom were fifteen years old or younger. Eleven of the patients were followed for an average of 3.5 years (range, two to nine years). Pelvic osteomyelitis in children is an uncommon lesion. Review of the literature gives the impression that this lesion is usually diagnosed late in its course and requires surgical drainage for adequate treatment. The role of the technetium bone scan in making an early diagnosis is important. All of the patients in this series were treated with antibiotic therapy alone, and surgical drainage was not found to be necessary. All of the patients who were followed for at least two years had no recurrence and no permanent sequelae.

Adolescent↗
PubMedDate not supplied

Deep, late infections associated with internal fixation in children.

Deep, late infection associated with internal fixation is well known in adults, but has not been previously reported in children. We report here six cases of deep, late infection in children associated with internal fixation of the proximal femur. All patients had cerebral palsy and had undergone a proximal femoral osteotomy for hip subluxation or dislocation. The patients presented with infection between 7 and 24 months after a period of total recovery. The clinical presentation was variable, although many patients had increasing hip pain. Radiographs showed radiolucency around the lag screw. The bacteriologic finding was usually Staphylococcus aureus, and patients responded to wound debridement, hardware removal, and intravenous antibiotics. In light of these cases of deep, late infection, we strongly urge routine removal of metallic implants as soon as bony healing will allow.

Bone Plates↗