Kienböck, a German radiologist, described avascular necrosis of the lunate (Kienböck's disease) in 1910. The epidemiology and etiology are not well-known and always has been debated. A negative ulnar variance is considered as a predisposing factor for Kienböck's disease by the majority of the authors. The treatment depends upon the stage of the disease at the time of presentation and diagnosis....

Instability of the scapholunate joint is frequently manifested by wrist pain and is sometimes visualized by a 2 to 4 mm gap between the scaphoid and lunate. Surgical repairs have had limited success, in part due to the surgeon being unsure which ligament or ligaments have been torn until the time of surgery. Various methods have been used to describe this gap between the bones and various level...

Intraosseous ganglion cyst of the carpal bones represents a rare cause of wrist pain. We report a case of a 42 year-old, right-handed female, who presented with pain of the right wrist following a fall on the palm of the hand. Clinical study revealed a moderate swelling over the mid-section of the palmar face and pain through extreme ranges of motion of the wrist. Plain radiographs and CT-scan ...

The etiologies of Keinböck's disease and intraosseous ganglion remain unknown. Both entities are rare and the coexistence of these two pathologies in the same patient and hand is even less frequent. We report the case of a 40-year-old man with a longstanding history of martial arts practice (karate) who developed an avascular necrosis of the lunate concomitant with a giant intraosseous ganglion...

PURPOSE The primary purpose of this study was to measure the in vitro scaphoid and lunate motion during 9 different variations of a wrist dart throw motion. Another goal was to determine the specific dart throw motion that minimized scaphoid and lunate motion. METHODS Scaphoid and lunate motion were recorded in 7 cadaver forearms during various combinations of wrist dart throw motions caused ...

OBJECTIVE The purpose of this article is to provide an overview of Kienböck disease focusing on imaging findings, including the relevant anatomy, pathophysiology, and treatment of Kienböck disease and the differential diagnoses (pseudo-Kienböck lesions). CONCLUSION Kienböck disease is a condition marked by avascular necrosis of the lunate bone. MRI is useful in diagnosis and staging and shoul...

Intraosseous ganglia can affect the carpal bones of the hand and must be considered in the differential diagnosis of wrist pain. A 38-year-old female presented with a 14-month history of left wrist pain and a radiolucent cystic lesion was seen computed tomography (CT) scanning. Characteristic radiographic findings of a cyst in association with a fine sclerotic rim was apparent. We report an unu...

INTRODUCTION A rare case of congenital bipartite lunate in a child is reported. Carpal variants are very uncommon as independent entities, with only three previous reports of this condition in the English literature. CASE PRESENTATION An 11-year-old Caucasian boy presented with pain in the left wrist after a fall. Radiographs in the emergency department demonstrated a lunate that was divided ...