Biomedical subjects

D R Gore

Publications and source records attributed to D R Gore.

40 records · Page 3Linked to original sources

PubMedDate not supplied

Iatrogenic avascular necrosis of the hip in young children: a long-term follow-up.

The purpose of this study is to report the long-term results of six children with iatrogenic avascular necrosis of one hip. The avascular necrosis occurred in the originally normal hip that was immobilized as part of treatment for congenital dislocation of the contralateral hip. At time of treatment, they ranged in age from 1 to 16 months, and at follow-up, 29 to 35 years. At time of final review, one had a roentgenographically normal hip, but five had residual structural abnormalities, of which two were severe. None had developed degenerative changes, but two had complaints of mild to moderate hip pain. This report presents the sequelae of avascular necrosis in a normal hip in six children and emphasizes that in treatment of congenital hip problems, vascular damage to the normal hip can occur and result in permanent deformities.

Adolescent↗

PubMedDate not supplied

Shoulder motion and muscle strength of normal men and women in two age groups.

Normal age- and sex-related standards for shoulder range of motion (ROM) and muscle strength are unavailable in the literature. Active range of shoulder motion and maximum isometric strength (torque) of several shoulder muscle groups were measured in normal healthy men and women between 25 and 36 and between 55 and 66 years of age. Values for joint motion were similar for the two age and sex groups. The strength of the women was 45% to 66% of that in men, and strength of the older subjects was 66% to 93% of that in younger subjects. Strength of the second attempt at contraction was greater than that of the first attempt. Arm dominance did not significantly affect strength values.

Adult↗

PubMedDate not supplied

Kinesiologic measurements of functional performance before and after geometric total knee replacemtn: one-year follow-up of twenty cases.

Kinesiologic measurements were made in patients with severe arthritis before and after geometric total knee replacements to evaluate the nature, rate and extent of change in their functional ability. Preoperatively, patients with rheumatoid arthritis functioned at lower levels than patients with osteoarthritis. Most patients with rheumatoid arthritis improved steadily after surgery, while progress of those with osteoarthritis was often irregular. The group with rheumatoid arthritis improved more than those with osteoarthritis, but they did not generally reach the functional level attained by the patients with osteoarthritis, and neither group reached the lower limits of normal variability 1 year postoperatively. On the average, both groups gained knee extensions, lost knee flexion, and gained isometric knee flexor muscle strength postoperatively. Every patient with osteoarthritis lost extensor muscle strength 1 year after surgery, while most with rheumatoid arthritis gained. During quiet standing, most patients had straighter knees postoperatively and bore a greater percent of body weight on the operated limb. Patients with rheumatoid arthritis improved more than patients with osteoarthritis in the type and amount of force applied to canes and crutches. Most patients walked faster postoperatively, took longer and more rapid steps, improved the pattern of knee motion used, and had smoother forward, lateral and vertical head motion.

Aged↗

PubMedDate not supplied

Comparison of functional performance after McKee-Farrar, Charnley, and Muller total hip replacement. A six-month follow-up of one hundred sixty-five cases.

Measurements of functional performance were compared before and at 6 months after 58 McKee-Farrar, 50 Charnley, and 57 Muller total hip replacements in 143 patients. The measurment included: range of motion of the hip, hip abductor and adductor-muscle torque, weight-bearing activity during standing, forces applied to canes or crutches, and multiple components of walking performance. Each group of patients improved significantly after surgery in all of the components measured. Early postoperative differences among the 3 groups were found with respect to pain ratings, impressions of hip status, hip motions, muscle torque, the number of patients using assistive devices, and certain components of walking performance. There is nothing to suggest that the performance of any 1 group is distinctly better or worse than that of any other group 6 months after surgery. On the basis of average values, each group improved in every component of function and it is gratifying that, except for a few patients who developed postoperative infection, each patient could be considered to have successful reconstruction.

Adult↗