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- Title
Magnetic resonance imaging signs of iliotibial band friction in patients with isolated medial compartment osteoarthritis of the knee.
- Authors
Vasilevska, Violeta; Szeimies, Ulrike; Stäbler, Axel
- Abstract
<bold>Background: </bold>The purpose of this retrospective study was to assess the frequency of magnetic resonance imaging (MRI) signs of iliotibial band friction (ITBF) in patients with advanced medial compartment knee osteoarthritis.<bold>Material and Methods: </bold>Proton density-weighted (PDw) fat-saturated (fatsat) MR images (1.5 T, slice thickness (SL) 2.5-3 mm, eight-channel phased array coil) of 128 patients with isolated advanced osteoarthritis of the medial knee compartment and complete or subtotal (>80%) loss of cartilage were evaluated. There were 41 men and 87 women. Mean age was 63 years, range 34-89 years. The control group consisted of 94 patients with medial meniscus degeneration without cartilage loss (56 men and 38 women, mean age 50 years, range 16-89 years). MRI signs of ITBF were evaluated in both groups [poorly defined abnormalities of signal intensity and localized fluid collection lateral, distal or proximal to the lateral epicondyle; signal intensity abnormalities superficial to or deep by the iliotibial band (ITB)]. Transverse images were evaluated separately. Consensus evaluation using all imaging planes was performed.<bold>Results: </bold>Of 128 patients with osteoarthritis, 95 had moderate or advanced MRI signs of ITBF (74.2%). Eighty-nine patients (69.5%) had advanced degeneration of the meniscus. In the control group, 26 of 94 patients had only moderate MRI signs of ITBF. There was a statistically significant difference between both groups for the presence of MR signs of ITBF (P <or= 0.01).<bold>Conclusion: </bold>MRI signs of ITBF were frequently present in patients with severe medial compartment osteoarthritis of the knee. Joint space narrowing with varus knee deformity may be a cause of ITBF.
- Subjects
COMPARTMENT syndrome; KNEE diseases; OSTEOARTHRITIS diagnosis; JOINT hypermobility; FRICTION; ILIUM; KNEE; MAGNETIC resonance imaging; TIBIA; DIAGNOSIS
- Publication
Skeletal Radiology, 2009, Vol 38, Issue 9, p871
- ISSN
0364-2348
- Publication type
journal article
- DOI
10.1007/s00256-009-0704-z