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Biomedical subjects

R H Bell

Publications and source records attributed to R H Bell.

95 records · Page 6Linked to original sources
PubMedDate not supplied

Quantitative morphological studies of aging changes in the kidney of the Lewis rat.

Spontaneous aging changes in the kidneys of the rat have been previously described. In the Lewis strain, we performed semiquantitative studies of kidney histology and quantitative studies of glomerular basement membrane thickness and mesangial area in animals aged 6-30 months. There is a progressive increase in glomerular basement membrane thickness and mesangial area throughout the life of the rat. Spontaneous glomerulosclerosis in the Lewis rat does not appear to be as extensive as in other strains. The importance of spontaneous glomerulosclerosis in studies of induced kidney disease is emphasized.

Aging↗
PubMedDate not supplied

Acute patellar dislocations. The natural history.

Of 27 patients sustaining primary patellar dislocations, 20 were treated with immobilization and subsequent physiotherapy (including nine patients who underwent arthroscopy) and seven with immediate surgical stabilization and lateral release. The patients with predisposing factors such as patellofemoral malalignment, abnormal patellar configuration, and a history of prior symptoms of instability were more prone to recurrent dislocation and may benefit from operative intervention. Although the incidence of recurrence among those individuals can be decreased, at least 30% to 50% of all patients having sustained a primary patellar dislocation will continue to have symptoms of instability and/or anterior knee pain.

Acute Disease↗
PubMedDate not supplied

Repair of distal biceps brachii tendon ruptures.

This study consisted of 26 male patients with distal biceps tendon ruptures, 2 of whom had bilateral injuries, making the total number of ruptures 28. The average age at injury was 45 years. The treatment groups were the following: 3 were treated without surgery, 4 were repaired with brachialis tenodesis, and 21 were reattached to the radial tuberosity by the 2-incision Boyd-Anderson approach. Patients underwent follow-up a minimum of 14 months after surgery, with the average being 43 months. Outcome was evaluated based on the physical examination, isokinetic testing of strength and endurance of flexion and supination, and radiographic analysis.

Adult↗
PubMedDate not supplied

Severely displaced proximal humeral epiphyseal fractures: a follow-up study.

Forty-eight patients with severely displaced proximal humeral epiphyseal fractures were reviewed. Twenty-one patients were followed up for an average of 9 years after injury with a personal interview, examination, and radiographs. Average age was 14.1 years, half of whom were age 15 years or older. Initial head-shaft displacement averaged 80%, and 31 fractures were displaced by > or = 80%. All underwent attempted closed reduction. Radiographs for all except three were sufficient to judge the adequacy of reduction. Twenty-six of 45 attempted closed-reductions failed to improve displacement significantly. Nine patients underwent operative treatment, and the remainder had a closed reduction. In the operative group, complications occurred in three of nine patients. No complications occurred in the nonoperative group. No patients seen at late follow-up identified any activity or employment restrictions as a result of their injuries. Several patients incurred humeral shortening or imperfect radiographic remodeling, but this did not correlate with clinical outcome. Comparing the operative complications with the excellent late results after nonoperative treatment in this series supports previous recommendations to avoid operative intervention with few exceptions. The magnitude of displacement alone does not appear to justify operative treatment.

Adolescent↗