We investigate whether applying an internal radiocarpal-spanning plate with the wrist in slight extension affects the biomechanical stability of the construct. An unstable distal radius fracture was simulated in 10 cadaveric specimens and immobilized with a radiocarpal-spanning plate holding the wrist in a neutral position. This construct was then physiologically loaded through the wrist flexor...

Excision of the proximal carpal row has proven over the past 60 years to be an effective technique for certain disorders of the wrist, including degenerative sequelae of scapholunate ligament dissociation and scaphoid nonunions, Kienböck disease, Preisser disease, and other fracture-dislocations of the wrist. The durability of this procedure may be due to remodeling of the capitate head to the ...

INTRODUCTION In this study, we analyzed the crosstalk in mechanomyographic (MMG) signals generated by the extensor digitorum (ED), extensor carpi ulnaris (ECU), and flexor carpi ulnaris (FCU) muscles of the forearm during wrist flexion (WF) and extension (WE) and radial (RD) and ulnar (UD) deviations. METHODS Twenty right-handed men (mean ± SD age=26.7 ± 3.83 years) performed the wrist postur...

Carpal instability is often related to ruptured or lax carpal ligaments. Wrist cineradiography has been shown to be a good modality for diagnosing carpal instability. To create uniformity in obtaining and assessing wrist cineradiography, a wrist cineradiography protocol is desirable. This protocol will focus on wrist cineradiography for diagnosing carpal instabilities. It describes the patholog...

Injuries of the wrist are common among snowboarders and in-line skaters. Wrist protectors have been developed to protect against injury. Some studies support the use of such wrist protection, but others emphasize the fact that wrist protectors may transfer the injury to other locations in the forearm. We conducted a prospective, randomized, clinical study of 5,029 snowboarders, 2,515 in a brace...

BACKGROUND Endoscopic maneuvers are associated with a high incidence of musculoskeletal injuries. OBJECTIVE To quantify wrist motion patterns during simulated endoscopic procedures to identify potential causes of endoscopy-related overuse injury. DESIGN Twelve endoscopists with different levels of experience were tested on 2 simulated endoscopic procedures that differed in their level of di...

  Background: Scaphoid malunion alters the carpal kinematics and impairs clinical outcome because of pain, weakness, restricted range of motion and predisposing the wrist joint to early osteoarthritis. The aim of this study was to evaluate the influence of the scaphoid morphological angles on clinical outcomes in patients with reconstructed scaphoid by non-vascularized bone graft. Methods: Seve...

PURPOSE Assessment of wrist motion is important in diagnosing and treating motion impairment after injuries to the wrist. Little is known of how finger posture influences the movement of the wrist. The aim of this study was to investigate the effect of finger constraints on the maximum circumduction movement of the wrist. METHODS Fifteen male right-handed subjects performed maximal circumfere...