The closest distance measured between the lateral border of the plate and the radial nerve in full
supination of the forearm was 2.5-5.3 mm (average 3.7 mm).
(1,2) The onset of symptoms predominately arises from repetitive movement with wrist extension and alternating pronation and
supination of the forearm. It is likely to be a self-limiting pathology and approximately 80% of patients newly diagnosed report improvement at one year.
The biceps muscle enables
supination of the forearm and flexion of the elbow.
Clinically, then, it might also be important to work on regaining
supination of the forearm since this will allow better stabilization and function by the wrist and hand in a reaching task.
The diagnostic test is pain on resisted
supination of the forearm. The same tests used for the proximal biceps elicit the pain (Speed and Yergason).
Recovery has been uneventful, and the patient has regained full flexion and extension of the wrist and elbow and full pronation and
supination of the forearm. On manual strength testing one year following removal of the plates, there was no detectable strength deficit in flexion and extension of the wrist and elbow and pronation and
supination of the forearm, when compared to the uninjured contralateral arm.
Additionally, repetitive twisting of the forearm 180[degrees] between palm-up and palm-down positions (pronation and
supination of the forearm) is common.
Four months later, the patient complained of pain at night and weakness on
supination of the forearm and flexion of the elbow.
The shortening, angulation, malunion, malrotation of either of these bones may result in a serious loss of elbow and wrist movements and pronation,
supination of the forearm affecting the earning capacity of the individual as well as his day to day activities (2).
DQST has traditionally been linked to a combination of repetitive movements involving pronation and
supination of the forearm, ulnar and radial deviation of the wrist, and abduction/extension of the thumb.
3) The patient is examined in the same position with the arm flexed up to 90[degrees] and full
supination of the forearm. An axial load along the arm and a valgus directed force is applied to the elbow.
Moreover, intraoperatively we confirmed pronation and
supination of the forearm smoothly without the impingement of the implant.