A case of rotational restriction of the forearm due to abnormal configuration of pronator quadratus muscle.

We present a case of rotational restriction of the forearm due to abnormal configuration of the pronator quadratus muscle. A 20-year-old man developed right wrist joint pain on pitching of a baseball game and thereafter displayed rotational disorder of the forearm. Magnetic resonance imaging (MRI) revealed a space-occupying lesion from the volar side of the radius to the dorsal side of the ulna.

Characteristics of the electrophysiological activity of muscles attached to the transverse carpal ligament in carpal tunnel syndrome.

The main cause of carpal tunnel syndrome (CTS) remains unknown. Stiffness of the subcutaneous area of the volar aspect of the carpal tunnel is present in many patients and suggests that the stiffness of muscles attached to the transverse carpal ligament is increased. We performed an electrophysiological study to investigate muscle activities and to clarify whether the stiffness of muscles attached to the transverse carpal ligament is involved in the pathogenesis of CTS.

Clinical usefulness of assessing lumbar somatosensory evoked potentials in lumbar spinal stenosis. Clinical article.

Object: The aim of this retrospective study was to evaluate the clinical usefulness of assessing lumbar somatosensory evoked potentials (SSEPs) in central lumbar spinal stenosis (LSS).

Methods: The latencies of lumbar SSEPs were recorded in 40 patients with central LSS, including 16 men and 24 women. The mean age of the patients was 67.

Clinical value of motor evoked potentials with transcranial magnetic stimulation in the assessment of lumbar spinal stenosis.

The objective of this study was to evaluate the clinical usefulness of assessing motor evoked potentials (MEP) in lumbar spinal stenosis (LSS). Twenty-three LSS patients were enrolled. The preoperative data of MEP latency (MEPLT), clinical symptoms, Japanese Orthopaedic Association (JOA) scores for low back pain, visual analogue scale (VAS) for back pain, leg pain and numbness, walking distance and the minimal cross-sectional area (mCSA) of the dural sac were evaluated.