Quantitative evaluation of motor functions of patients with cerebellar ataxia is vital for evidence-based treatments and has been a focus in previous investigations of movement kinematics. Due to redundancy of the musculoskeletal system, muscle activities contain more information than the movement kinematics. Therefore, it is preferable to analyze causal anomalies of muscle activities to evalua...

Results A 15 yo boy was referred to Rheumatology for left wrist swelling. His past medical history was unremarkable until 8 months prior when he began to have significant pain and progressive swelling of the left wrist. He was initially diagnosed with a fracture of the scaphoid bone for which he was casted for 2 months. After the cast was removed, the patient noticed that his symptoms persisted...

BACKGROUND To analyze clinical outcomes after anatomical reconstruction of distal radioulnar ligaments in patients with chronic post-traumatic instability of the distal radioulnar joint. METHODS Anatomical reconstruction was performed in 16 patients with subluxation or dynamic instability of distal radioulnar joint following trauma. Osteotomy was performed simultaneously in 10 patients with r...

MR imaging of the wrist frequently represents a diagnostic challenge for radiologists because of the complex anatomy of this joint, small size of its components, and little known pathologic conditions. MR arthrography combines the advantages of conventional MR imaging and arthrography by improving the visualization of small intra-articular abnormalities. This article reviews the current role of...

In 40 patients with rheumatoid arthritis 43 operations for excision of the ulnar head were performed. A follow-up study was performed after 35 months. In 38 patients wrist pain had disappeared completely or almost completely. The function in use, supination and pronation of the wrists, and wrist strength had all much improved. The stability of the radiocarpal joint was good after operation. Onl...

PURPOSE Proximal row carpectomy (PRC) is a clinically useful motion-sparing procedure for the treatment of certain degenerative conditions of the wrist. Clinical outcome studies after PRC have shown that wrist flexion-extension averages approximately 60% of that of the contralateral wrist. The purpose of this study was to determine how the kinematics of the wrist are altered after PRC. METHOD...

The mechanical effect of a muscle following agonist-to-antagonist tendon transfers does not always meet the surgeon's expectations. We tested the hypothesis that after flexor carpi ulnaris (FCU) to extensor carpi radialis (ECR) tendon transfer in the rat, the direction (flexion or extension) of the muscle's joint moment is dependent on joint angle. Five weeks after recovery from surgery (tendon...