Contrary to the proximal pole, the distal pole and the tubercle have an independent vascularisation. The palmar branch reaches the scaphoid via the distal tubercle. The dorsal branch of the radial artery provides 75% of the blood supply through the foramina. The main blood supply is through retrograde branches of the radial artery. Because of its unique anatomy it can articulate with all five surrounding bones (distal radius, os capitatum, os lunatum, os trapezium and os trapezoideum).Įighty percent of the scaphoid bone consists of cartilage, leaving limited space for entrance of the supplying arteries. The word scaphoid is derived from the Greek word for boat (skaphos). The scaphoid fracture was first described in 1905 by Destot, a French surgeon, anatomist and radiologist. Given the above, the indistinct method of treatment and the tremendous research efforts over the last decade resulting in up to 3,200 PubMed hits, the scaphoid remains one of the most interesting carpal bones for researchers. However, because of the diagnostic challenge that scaphoid fractures often present, the exact incidence is unknown. The incidence in Western countries is approximately five fractures in every 10,000 inhabitants. Of all carpal fractures, 82-89% concern scaphoid fractures. Scaphoid fractures account for 2-7% of all fractures and predominantly occur in young, active males. Therefore, pathologic abnormalities of the scaphoid may have serious consequences. The carpal scaphoid bone is known to play a key role in the function of the wrist.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |