Keywords:
Trauma, Diagnostic procedure, Ultrasound, MR, Musculoskeletal joint
Authors:
G. Kiernan, Z. Qamhawi, K. Shah, C. Azzopardi, J. Teh; Oxford/UK
DOI:
10.26044/essr2019/P-0147
Background
Stener lesion is a unique variant of injury of the ulnar collateral ligament (UCL) of the thumb whereby the distal aspect of the UCL is avulsed from its insertion into the base of the proximal phalanx of the thumb.
The usually superficial abductor pollicis aponeurosis then becomes interposed between the avulsed UCL and the metacarpophalangeal (MCP) joint of the thumb.
This interposition prevents healing and necessitates surgical intervention to restore joint integrity and prevent long term morbidity.
A literature review identifed 6 other studies assessing the efficiacy of ultrasound for detection of stener lesion.
The number of cases in these studies ranged from 6 - 56,
and not all contained complete ultrasound statistics.
The results of these other studies reported sensitivity of beteween 96 -100%,
specificity of 80 - 100%,
postive predictive value of 72 - 100% and negative predictive value of 100%.
Fig. 2: Review of literature and associted results for senstivity, specificty, postive predictive value and negative predictive value