Figure 1. Radiograph demonstration of a perilunate dislocation: The lunate maintains its normal articulation with the radius, whereas the capitated articular surface is dislocated from the lunate dorsally. Figure 2. Diagrammatic representation of the 3 carpal arcs of Gilula's lines. The first arc is a smooth curve outlining the proximal convexities of the scaphoid, lunate, and triquetrum. The s...

Single or repetitive microfractures leading to vascular disruption of the fragments. Recurrent compression of the lunate between capitate and distal radius. Extreme wrist positions or repetitive compression loading of the wrist. Negative ulnar variance, which occurs when the ulna projects more proximally than the radius, leading to increased load transmission through the radio-lunate joint. Var...

We have treated a total of 16 cases of advanced Kienböck's disease, stage III and IV by Lichtman's classification, with triscaphe fusion, tendon ball replacement arthroplasty after excision of lunate, proximal row carpectomy as a salvage procedure and limited wrist fusion, since 1985. All cases were followed for minimal 16 months after each operation. Tendon ball replacement arthroplasty after ...

BACKGROUND Abnormal angulation of the lunate can be an indication of intercarpal pathology. On magnetic resonance images (MRIs) the lunate often looks dorsally angulated, even in healthy wrists. The tilt on individual slices can also be different and might be misinterpreted as pathological, contributing to inaccurate diagnoses and unnecessary surgery. The primary aim of this study was to determ...

Chondromyxoid fibroma is a rare benign cartilage-forming tumor, counting for 0.5% of all primary bone tumors . The development of Chondromyxoid fibroma in the carpal bones is extremely rare. This article describes a rare case report of Chondromyxoid Fibroma in Scaphoid bone of a 15 year male. To our knowledge, this is the first report of Chondromyxoid fibroma in Scaphoid. The rarity of the lesi...

Complete disruption of the lunate from both dorsal and palmar ligamentous attachments caused by palmar dislocation has rarely been reported. The authors present two cases and discuss the surgical treatments performed. They conclude from these cases that the lunate is at risk for remaining avascular after such trauma, so that proximal row carpectomy should be considered as a surgical option in t...

The slippery zone in pitchers of the carnivorous plant Nepenthes alata bears scattered prominent lunate cells and displays continuous epicuticular crystalline wax coverage. The aim of this study was to examine the influence of the surface anisotropy, caused by the shape of lunate cells, on insect attachment ability. Traction tests with ladybird beetles Coccinella septempunctata were performed i...

Between 1971 and 1976 eight patients underwent excision of the carpal lunate for pain from Kienböck's disease. The bone was replaced by a silicone rubber implant. An average of 84 months had elapsed when they were reviewed in December 1980. All eight were very satisfied with their operations. Objectively, the clinical results were good, but radiographs showed the presence of degenerative change...