Closed ruptures of the flexor digitorum tendons: MRI evaluation

Abstract

MRI accurately depicted the level of rupture and the gap between the tendon ends, which assisted the surgical choice between suture, graft or tendon transfer.

Pulley System in the Fingers: Normal Anatomy and Simulated Lesions in Cadavers at MR Imaging, CT, and US with and without Contrast Material Distention of the Tendon Sheath

“…Although several investigators (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) have studied ultrasonography (US), computed tomography (CT), and magnetic resonance (MR) imaging in the evaluation of flexor tendon abnormalities, diagnosis of lesions of the pulley system has been made only indirectly with the detection of a gap between the flexor tendon and the bone on sagittal CT scans and MR images, a finding referred to as the bowstring sign. This sign usually reflects an extensive abnormality of the pulley system that leaves limited or partial lesions of the system virtually undetected by means of indirect methods of visualization.…”

Idiopathic Avulsion of the Flexor Pollicis Longus: Case Report and Review of the Literature

“…Incomplete palsy of the anterior interosseous nerve should be considered to avoid surgical exploration of an intact FPL tendon. Electrodiagnostic testing [11], MRI scanning [8], and sonography [15] have all been used to differentiate between these conditions. Less costly are the simple reproducible clinical tests described by Melton [23] and Mody [24] to assess the continuity of the FPL tendon.…”

Sonography of the finger flexor and extensor system at the hand and wrist level: findings in volunteers and anatomical correlation in cadavers

“…The flexor superficialis tendons are located more ventrally [7,8]. At the radial side of the tendons, the muscular belly of the lumbricalis muscle can be observed.…”