TL;DR: In this paper, the authors have shown that the basic pathologic abnormality is stenosing tenosynovitis of the sheath of the common radial wrist extensors.
Abstract: Intersection syndrome of the forearm is a common painful condition that is infrequently diagnosed. It presents with pain and swelling in the area where the muscle bellies of the abductor pollicis longus and extensor pollicis brevis cross the common wrist extensors. The etiology is not well understood, but operative treatment of 13 patients has shown that the basic pathologic abnormality is stenosing tenosynovitis of the sheath of the common radial wrist extensors.
TL;DR: The normal appearance of the wrists tendons is reviewed, relevant anatomy is discussed, and an overview of common pathologic conditions affecting the wrist tendons are given.
TL;DR: MR imaging is a noninvasive method that can be used for the evaluation of distal forearm and wrist pain and, in those cases in which intersection syndrome is suspected, the MR examination must be tailored to include the forearm.
Abstract: Objective
To correlate the anatomic and MR imaging characteristics of the area of intersection of the first and the second dorsal extensor tendon compartments (DETC) in the distal forearm in an attempt to improve the design of MR imaging protocols used for the evaluation of intersection syndrome.
TL;DR: A case of intersection syndrome is presented, describing its characteristic clinical and anatomic features, and highlighting differences in the areas of diagnosis and treatment relative to the better known DeQuervain's tenosynovitis.
Abstract: Intersection syndrome is a condition that should be differentiated from DeQuervain's stenosing tenosynovitis, as there are many subtle differences in treatment and prognosis. We present a case of intersection syndrome, describing its characteristic clinical and anatomic features, and highlighting differences in the areas of diagnosis and treatment relative to the better known DeQuervain's tenosynovitis.
TL;DR: Ultrasound is a non-invasive, simple, and economical method for the identification of intersection syndrome, tendon sheath anatomy (individual or separate sheaths) and to exclude other pathological conditions.
Abstract: To evaluate the use of ultrasound for the diagnosis of intersection syndrome. A total of 1,131 reports from hand and wrist ultrasound examinations performed between 1 January 2008 and 31 December 2012 were re-evaluated. Two hundred and fifteen video clips present in the electronic database were reviewed by two musculoskeletal radiologists with 20 years of experience. Of the 215 video clips reviewed, 21 patients were diagnosed with intersection syndrome. The mean age was 45 years (ranging from 22 to 60); 15 were male (13 with proximal intersection syndrome, 2 with distal intersection syndrome) and 6 female (5 with proximal intersection syndrome, 1 with distal intersection syndrome). Intersection syndrome was identified in 1.9 % of all patients evaluated in the setting of a specialized hospital. Ultrasound is a non-invasive, simple, and economical method for the identification of intersection syndrome, tendon sheath anatomy (individual or separate sheaths) and to exclude other pathological conditions.