The MR imaging features of the posterior intermalleolar ligament in patients with posterior impingement syndrome of the ankle.

Published

Journal Article

OBJECTIVE: To describe the MR imaging features of the posterior intermalleolar ligament (IML) in patients with posterior impingement syndrome (PIS) of the ankle. DESIGN AND PATIENTS: Three patients (one male and two females, 13-25 years of age) are presented. Each patient presented clinically with symptoms of PIS of the ankle. Plain film examination was negative for a structural cause of the PIS in all patients. MR images were obtained with a 1.5 T scanner using an extremity coil. Clinical data and, in one patient, findings at ankle arthroscopy, were correlated with the results of MR imaging. RESULTS: Ankle MR images from the three patients with a clinical diagnosis of PIS are presented. Findings in all patients included: (1) absence of another structural cause of the PIS (i.e., an os trigonum, trigonal process, fracture, loose bodies, etc.), (2) identification of the IML as a structure discrete from the posterior talofibular and tibiofibular ligaments, and (3) prominence of the IML as indicated by (a) identification of the IML in three different imaging planes, and (b) a caliber of the IML comparable to that of the conventional posterior ankle ligaments visualized in the same imaging plane. Arthroscopic resection of a meniscoid IML resulted in resolution of the PIS in one of the patients presented. CONCLUSIONS: MR imaging is an effective means of investigating the IML as a potential cause of PIS. The identification of a prominent IML in the absence of another structural cause of PIS indicates that impingement of the IML is the most likely cause of PIS.

Full Text

Duke Authors

Cited Authors

  • Fiorella, D; Helms, CA; Nunley, JA

Published Date

  • October 1999

Published In

Volume / Issue

  • 28 / 10

Start / End Page

  • 573 - 576

PubMed ID

  • 10550534

Pubmed Central ID

  • 10550534

International Standard Serial Number (ISSN)

  • 0364-2348

Digital Object Identifier (DOI)

  • 10.1007/s002560050621

Language

  • eng

Conference Location

  • Germany