Little research has been done on the prevalence of Kienböck's disease, and there is no consensus on the relationship between Kienböck's disease and negative ulnar variance. The goal of this cross-sectional study was to determine the prevalence of Kienböck's disease in middle-aged and elderly Japanese women and to clarify the relationship between Kienböck's disease and negative ulnar variance. T...

Hypothenar hammer syndrome is a rare condition of ulnar artery aneurysm or thrombosis, which can be associated with a neuropathy of the ulnar nerve. There is no agreement regarding an optimal diagnosis and treatment for this syndrome. Most authors suggest angiography as the gold standard for diagnosis and recommend observation for the thrombotic type, and reconstructive surgery for the aneurysm...

OBJECTIVE To describe an ultrasonography-guided technique for cubital tunnel injection. METHOD The ulnar nerves from 12 elbows of 6 adult cadavers were scanned, and the cross-sectional areas of the ulnar nerves, cubital tunnel inlets and outlets were measured by using ultrasonography. All elbows were dissected after an ultrasonography-guided dye injection at the inlet of the cubital tunnel. T...

BACKGROUND Inexperienced anesthesiologists are frequently unclear as to whether to stimulate the ulnar or median nerve to monitor the adductor pollicis. The primary purpose of this study was to determine whether monitoring the adductor pollicis by positioning the stimulating electrodes over the median nerve is an acceptable alternative to applying electrodes over the ulnar nerve. METHODS In 2...

A 43-year-old professional skateboarder presented to the sports medicine clinic with complaints of left wrist pain to the ulnar aspect. Two weeks prior to presentation, his wrist became suddenly painful with no specific trauma. He reported a history of falls over the years while skateboarding but none directly correlated to his onset of wrist pain. Radiographic results were negative for wrist o...

This study documents the existence and topographic anatomy of a rare case of variant forearm arteries found in the left upper limb of a 68-year-old male cadaver. The arteries of the arm followed typical courses, but both the radial and ulnar arteries in the forearm followed a superficial course. The common interosseous artery and recurrent ulnar arteries branched from the radial, not the ulnar,...

Alteration in length of the distal ulna may provide an attractive alternative to more destructive procedures commonly used for the treatment of mechanical and degenerative problems at the distal radioulnar joint. Ulnar recession has shown effectiveness in ulnolunate impingement, triangular fibrocartilage tears, and symptomatic ulnar plus variance. It has also been effective in chondromalacia of...

INTRODUCTION The objective of this study was to determine whether a hand diagram could be used to predict ulnar mononeuropathy. METHODS This was a prospective study of 117 consecutive patients referred for hand symptoms. Each subject filled out a hand diagram of symptoms and had median and ulnar sensory and motor nerve conduction studies, including ulnar conduction across the elbow. RESULTS...