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Biomedical subjects

H J Robinson

Publications and source records attributed to H J Robinson.

25 records · Page 2Linked to original sources
PubMedDate not supplied

Innominate osteotomy in Perthes disease.

A retrospective study was performed in 27 patients who underwent innominate osteotomy for the treatment of severe Perthes disease. Time intervals between surgery and final follow-up ranged from 5 years to 16 years 4 months. Preoperative and postoperative periods of treatment were often more prolonged than those reported by Salter. One-half of the patients were less than 6 years of age at onset of the disease. A number of patients had significant deformity of the femoral head. Nevertheless, clinically good or fair results were obtained in 88% of the patients and poor results were found in 12%.

Age Factors↗
PubMedDate not supplied

Catheter with an anchoring tip for chronic joint capsule perfusion.

An orthopedic catheter for long-term access to the synovial joint is anchored by a hollow threaded tap that penetrates the capsule through a hole drilled in the surrounding bone. The proximal end of the catheter is connected to either an implantable drug infusion pump or an implantable access port for continuous or intermittent perfusion or sampling. Four catheters were evaluated in dogs. Three were attached to ports, the fourth to a pump. Water (one trial, 22 weeks) and hyaluronic acid (HA) (5 mg/ml; two trials of 8 weeks each) were administered through ports twice weekly in 1.5 ml boluses; 5 mg/ml HA was delivered by pump (1 trial of 33 weeks) at 0.31 ml/day.

Animals↗
PubMedDate not supplied

Avascular necrosis in congenital hip dysplasia: the effect of treatment.

Fifty-one patients known to have developed avascular necrosis during treatment for congenital hip dislocations were studied. Thirty-nine patients were followed for a mean of 23 years, 7 months. They were classified as to the severity of involvement, the subsequent treatment provided, and their final result. The greater the involvement, the worse the outcome. Residual subluxation of hips resulted in a poor prognosis. Intervention with open reduction did not result in success. Varus femoral osteotomies and acetabuloplasties met with limited success. Total hip replacements have not resulted in long-term success.

Adolescent↗
PubMedDate not supplied

Comparison of the transtrochanteric and posterior approaches for total hip replacement.

One-hundred fifty-six consecutive total hip replacements through a lateral transtrochanteric approach were evaluated and compared to a closely matched group of 160 consecutive similar procedures via a posterior approach. The lateral approach did not have any dislocations and created a greater abductor lever arm. However, a 4.5% complication rate was related to the greater trochanter and degraded the result. The posterior approach provided a shorter operative time, required less blood replacement, and resulted in a shorter hospital stay. However a 4.4% incidence of dislocation decreased the rate of recovery and the final result. Since this early experience, an improved technique of reattaching the short external rotators had mitigated the problem of dislocations. Wound and systemic complications, postoperative results, radiographic findings and prosthetic positioning were not significantly different in comparable patients treated by the 2 surgical approaches.

Adult↗