Extended and weightbearing wrist 3-T MRI using a novel harness and flexible 24-channel glove coil to evaluate carpal kinematics: a pilot study in 10 volunteers.

Background: Wrist pain in the extended or extended weightbearing positions may be incompletely evaluated using standard magnetic resonance imaging (MRI) with standard rigid clamshell coils in the neutral position.

Purpose: To evaluate a flexible 24-channel glove coil and harness when imaging the wrist in neutral, dorsally extended, and weightbearing positions.

Material And Methods: Ten wrists in 10 asymptomatic volunteers (mean age = 29 years) were scanned.

Trapezoid Stress Fracture in a Competitive Baseball Player.

Isolated fractures of the trapezoid are an exceedingly rare injury, and stress fractures of the carpus are similarly uncommon. An 18-year-old competitive baseball player presented with atraumatic, progressive hand pain. He was found to have a stress fracture of the trapezoid.

Clinical utility of portable versus traditional electrodiagnostic testing for diagnosing, evaluating, and treating carpal tunnel syndrome.

Data indicate that a portable electrodiagnostic device (NC-Stat; Neurometrix, Inc, Cambridge, Mass) provides objective preoperative evidence of the severity of median nerve dysfunction as well as useful objective postoperative data. With traditional electrodiagnostic studies for comparison, we studied the utility of this device as a diagnostic tool, evaluated patient satisfaction with the instrument, and found statistically significant improvement in recorded distal motor latency at 6-month follow-up. Such data can be of great value in treating a patient who does not exhibit subjective symptom improvement.

Comparison of two headless screw designs for fixation of capitellum fractures.

In order to determine the effects of two different headless screw designs on fixation of simulated capitellum fractures six matched pairs of embalmed humeri had simulated capitellum fractures created. Fixation with Acutrac compression screws was compared to Herbert screws in a matched pair experimental design. All specimens were cyclically tested with simulated physiologic loading.

Capitellum fractures: a biomechanical evaluation of three fixation methods.

Objective: To determine the relative stability of three fixation methods for displaced capitellum fractures.

Design: Twelve matched pairs of embalmed humeri were divided into two equal groups and simulated capitellum fractures created. The first group compared cancellous lag screws placed in an anteroposterior direction to screws placed in the posteroanterior direction.