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Biomedical subjects

I S Fyfe

Publications and source records attributed to I S Fyfe.

14 recordsLinked to original sources
PubMed1993

Surgery of the rheumatoid cervical spine. Correlation of the pathology and prognosis.

Twenty-eight rheumatoid arthritis patients with symptomatic subluxation of the cervical spine had 34 operative procedures in the period from 1983 to 1989. Two distinct groups are noted with regard to management and prognosis. The treatment of isolated atlantoaxial instability has been straightforward and the morbidity low. Subaxial instability and combined atlantoaxial and subaxial instability were more difficult to manage: The incidence of preoperative neurologic deficit was higher and the operative technique more demanding. There have been two late deaths of quadriparesis. Half of the other patients were ambulant and independent. The halo jacket has been used to reduce subaxial subluxation and neurologic deficit before surgery. Both anterior and posterior approaches have been successfully employed.

Arthritis, Rheumatoid↗
PubMed1991

Souter-Strathclyde arthroplasty of the rheumatoid elbow. 23 cases followed for 3 years.

Twenty-three elbows in 17 rheumatoid arthritis patients have undergone unconstrained Souter-Strathclyde elbow replacements since March 1984. One patient developed a deep-wound infection, and 4 others had a temporary ulnar nerve paresis. At follow-up 3 (0.5-6) years postoperatively, there was a moderate improvement in the arc of movements: 25 degrees in extension-flexion and 45 degrees in forearm rotation. Pain relief was achieved in 20 cases. Three elbows required revision, two following recurrent dislocation and the other after a humeral fracture and component loosening.

Adult↗
PubMed1985

Methods of fixation of olecranon fractures. An experimental mechanical study.

This study was designed to compare the rigidity of the more commonly used techniques of internal fixation of fractures of the olecranon. Cadaveric elbow joints were mounted in a jig and controlled osteotomies performed to simulate transverse, oblique or comminuted fractures. Five techniques of internal fixation were tested by measuring movement at the fracture site after applying a bending moment to the ulna. At transverse osteotomies tension-band wiring with two tightening knots allowed least movement even at high loads. Intramedullary cancellous screw fixation gave erratic results; adding a tension band with a single know was little better. In oblique osteotomies, no statistically significant difference was shown between one-third tubular plate fixation and double-knot wiring. Comminuted osteotomies were held most rigidly by contoured one-third tubular plate fixation.

Biomechanical Phenomena↗
PubMed1983

Closed vertebral biopsy.

A study of cadaveric vertebral biopsy and a review of 100 clinical biopsies has shown that needles and trephines producing tissue specimens of two millimetres or more in diameter can be expected to give a high degree of diagnostic accuracy. The erythrocyte sedimentation rate was a more useful screening investigation than were estimations of serum alkaline phosphatase. The complications are described. It is suggested that patients with painful thoracic metastases and evidence of progressive cord compression should have early decompression after open biopsy if further neurological compromise is to be prevented.

Aged↗
PubMed1981

Tibial intercondylar fractures in children: a review of the classification and the treatment of mal-union.

Forced flexion with internal rotation of the knee in a child can result in an avulsion fracture of the tibial intercondylar area by the anterior cruciate ligament. Accurate radiological assessment of the size of the fragment is difficult. Conservative treatment with plaster immobilization in 30-50 degrees of flexion is recommended for Type I fractures. Operative reduction is suggested for all Type III and some Type II fractures. Correction of mal-union can be achieved by excision of a wedge of tibial bone and reattachment of the origin of the anterior cruciate ligament.

Child↗
PubMed1980

Pigmented villonodular synovitis of the hand.

A series of fifty one lesions arising in the hand is reviewed. Fifty nine per cent of the lesions arose from the joints of the hand which are also frequently the site of degenerative changes. Twenty five per cent of available radiographs also showed such changes. The aetiology and diagnosis of this condition, the treatment and the results are discussed.

Adolescent↗