Sign in or
The pisiform is uncommonly fractured. When the radiographer is presented with a suspected pisiform fracture, a knowledge of the appropriate supplementary views will potentially assist in confirming the fracture.Mechanism of Injury
The pisiform is typically injured by a fall on an outstretched hand in a dorsiflexed position, with the impact on the hypothenar eminence Bryan C Hoynak, Laura Hopson, MD, e medicine
The pisiform is a sesamoid bone within the tendon of the flexor carpi ulnaris. It articulates only with the triquetrum and lies near the deep ulnar nerve and artery.
The average incidence of pisiform fractures is 0.2% of all carpal fractures and approximately half of them are isolated fractures.
M. Tayfun Altınok MD. , Kadir Ertem MD , Ahmet Sığırcı MD , Alpay Alkan MD An Isolated Acute Pisiform Fracture: Usefulness Of MR Imaging
|Michael A Fleege, Pisiform Fractures, Skeletal Radiology, 1991: 20 p161|
Demonstration of pisiform fractures will usually require dedicated radiographic techniques. In particular, a 20 degree supinated lateral wrist and carpal tunnel view may be helpful. In a study by Fleege et al (1991), the PA view was also found beneficial in demonstrating pisiform fractures.
The PA wrist view demonstrates a suspected pisiform fracture The scaphoid view tends to superimpose the pisiform over the hamate to no particular advantage In a correctly positioned lateral wrist, the pisiform will be superimposed over the scaphoid A lateral wrist with 20 degrees of supination will result in a useful demonstration of the pisiform A carpal tunnel view will also demonstrate the pisiform well, and in this case, demonstrates the suspected pisiform fracture
...back to the Wikiradiography home page
...back to the Applied Radiography home page
Latest page update: made by M.J.Fuller
, Jun 23 2009, 12:05 AM EDT
(about this update
About This Update
Edited by M.J.Fuller
13 words added
- complete history)
More Info: links to this page
There are no threads for this page. Be the first to start a new thread.