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Biomedical subjects

R I MacDonald

Publications and source records attributed to R I MacDonald.

7 recordsLinked to original sources
PubMed1979

Fibular autografts for distal defects of the radius.

A protocol for osteoarticular grafting was established to avoid fracture, nonunion, and loss of motion when replacing the distal radius. Proximal fibular autografts were used and stabilized proximally by compression plating and, at the wrist, by ligamentous reconstruction. Postoperative splinting and therapy were coordinated with graft healing, which was monitored by bone scans and roentgenograms. Graft incorporation in three patients appeared to be well-established within 1 year, but functional use of the extremity and return to duty were achieved much earlier.

Adult↗
PubMed1978

Complications of surgical release for carpal tunnel syndrome.

Review of a series of 186 operative cases of carpal tunnel release revealed 34 complications in 22 patients, for an incidence of 12%. Complications were grouped into seven categories: (1) inadequate section of the transverse carpal ligament (associated with both transverse and curved incisions), (2) symptoms related to damage to the palmar cutaneous branch of the median nerve, (3) reflex sympathetic dystrophy, (4) unsightly hypertrophic scar due to inappropriate incision, (5) damage to the superficial palmar arch following blind sectioning of the transverse carpal ligament, (6) bowstringing of the flexor tendons after excision of the transverse carpal ligament, and (7) adherence of the flexor tendons following excision of the mesotenon. Except for four of the complications, two each of bowstringing and reflex sympathetic dystrophy which occurred in our own practice, all of the complications were seen in patients referred for care. Most complications can be prevented by proper operative technique.

Adult↗
PubMed1977

Kienböck's disease: the role of silicone replacement arthroplasty.

A review of thirty-eight patients with Kienböck's disease indicated that both delay in diagnosis and prolonged treatment by plaster immobilization led to progressive collapse of the lunate and an unsatisfactory result in most instances. Four clinical and roentgenographic stages were identified, and the results of silicone replacement arthroplasty were correlated with the preoperative stage after an average follow-up of twenty-seven months. The results were satisfactory in fourteen of twenty wrists in which the procedure was performed before collapse of the lunate had occurred. The importance of early diagnosis and early surgical treatment of this disorder was emphasized by the findings in this study.

Adolescent↗
PubMedDate not supplied

Hand injuries from sea urchin spines.

Sea urchin spine injury is usually a benign process that rarely comes to the attention of a physician. Aside from the transient episode of excruciating pain which responds dramatically to hot water soaks, there is usually no residual disability. As in any puncture wound, tetanus prophylaxis and observation for latent infection is advised. Complications arise, however, when spines are embedded over bony prominences, within joints, or in contact with nerves. Cases are reported herein of the latter two problems occurring in the hand. A case of a neuropathy associated with sea urchin injuries has not been previously reported in the literature. When such injuries necessitate exploration, aseptic surgical technique is required.

Adult↗