RESUMEN
This paper presents an anatomical study of the origins of the thenar and hypothenar muscles and postulates the causes of weakness and pillar pain following carpal tunnel release.
Asunto(s)
Mano/anatomía & histología , Músculo Esquelético/anatomía & histología , Cadáver , Humanos , Procesamiento de Imagen Asistido por Computador , Ligamentos/anatomía & histologíaRESUMEN
The purpose of this clinical study was to compare patients' symptoms and radioulnar convergence following distal radioulnar reconstruction with and without a functional brace on. Standardized radiographs were taken of the involved wrist at rest, while holding a weight, and during maximum power grip. All radiographs were then repeated while wearing a prefabricated functional brace (Maramed, Miami, FL). The functional brace did not decrease radioulnar convergence and, at rest, the brace actually increased radioulnar convergence. Despite this, all patients who experienced pain without the brace were pain free with the brace on. We conclude that forearm bracing may be a useful nonoperative treatment for residual pain following DRUJ salvage surgery, though its mechanism of action is unclear.
Asunto(s)
Tirantes , Antebrazo , Radio (Anatomía)/cirugía , Cúbito/cirugía , Articulación de la Muñeca/cirugía , Artritis/cirugía , Femenino , Fuerza de la Mano/fisiología , Humanos , Inestabilidad de la Articulación/diagnóstico por imagen , Inestabilidad de la Articulación/fisiopatología , Inestabilidad de la Articulación/terapia , Masculino , Persona de Mediana Edad , Dolor Postoperatorio/terapia , Radiografía , Radio (Anatomía)/diagnóstico por imagen , Radio (Anatomía)/fisiopatología , Supinación/fisiología , Cúbito/diagnóstico por imagen , Cúbito/fisiopatología , Soporte de Peso/fisiología , Articulación de la Muñeca/diagnóstico por imagen , Articulación de la Muñeca/fisiopatologíaRESUMEN
We report a case of traumatic avulsion of the latissimus dorsi tendon in a professional body-builder. The injury was repaired by reattachment of the avulsed tendon. This procedure is quite challenging in a well-muscled individual and requires a detailed understanding of the anatomy of the axilla.
Asunto(s)
Lesiones del Hombro , Traumatismos de los Tendones/cirugía , Levantamiento de Peso/lesiones , Adulto , Humanos , Masculino , Hombro/cirugía , Traumatismos de los Tendones/etiologíaRESUMEN
Five human anatomic specimen knees were used to determine the effect of patellar component position on patellofemoral kinematics, contact pressures, and contact areas after total knee arthroplasty using a polyethylene, domed patellar component. Each patellar component was positioned at the anatomic center of the resected patellar surface and then repositioned 5 mm proximally, distally, medially, and laterally. Patellar tilt was greatest with medial positioning of the patellar component and least with central and lateral positioning. At higher knee flexion angles, patellofemoral joint contact pressures increased at the medial facet with the medialized component and at the lateral facet for the lateralized component. The centralized component had the most evenly balanced patellar facet contact pressures. Distally positioned patellar components resulted in decreased patellar component loading at higher knee flexion angles. Central positioning of the patellar component results in optimal patellofemoral mechanics when maximal coverage of the resected patella is desired.