Acetabular Labrum: MRI in Asymptomatic Volunteers

Overview

Journal J Comput Assist Tomogr

Specialty Radiology

Date 1998 Feb 4

PMID 9448753

Citations 19

Authors

A Cotten

N Boutry

X Demondion

C Paret

F Dewatre

A Liesse

P Chastanet

C Fontaine

Affiliations

Soon will be listed here.

Abstract

Purpose: The purpose of this study was to describe the MR appearance of the acetabular labrum in asymptomatic hips on high resolution MRI.

Method: Fifty-two hips in 46 asymptomatic volunteers with an age range of 15-85 years were evaluated with coronal and axial T1-weighted and T2-weighted sequences. The shape, margin, size, and signal intensity of the acetabular labrum were analyzed.

Results: The labrum was absent in its anterosuperior aspect in five hips (10%). Intralabral regions of intermediate of high signal intensity were detected in 30 hips (58%) imaged with T1-weighted and proton density-weighted sequences. Intralabral linear hyperintense foci reaching the articular surface and consistent with a labral tear were detected in four labra on T2-weighted images. Intralabral microcysts were seen in three labra.

Conclusion: The MR appearance of the hip labrum is varied in asymptomatic volunteers. Intralabral increased signal intensity and absent anterosuperior labra are especially frequent and may represent asymptomatic lesions or normal variations.

Citing Articles

Acetabular Rim Ossification Variants Are Found in Almost 20% of Patients Presenting With Hip Pain.

Safran M, Money A, Vaughn Z, Brcka D, McGaver R, Giveans M Arthrosc Sports Med Rehabil. 2023; 5(4):100742.

PMID: 37645395 PMC: 10461137. DOI: 10.1016/j.asmr.2023.04.025.

The dimensions of the hip labrum can be reliably measured using magnetic resonance and computed tomography which can be used to develop a standardized definition of the hypoplastic labrum.

Walker M, Maini L, Kay J, Sansone M, Mascarenhas V, Simunovic N Knee Surg Sports Traumatol Arthrosc. 2020; 29(5):1432-1452.

PMID: 33084911 DOI: 10.1007/s00167-020-06330-9.

Synovial cysts of the hip joint: a single-center experience.

Wang J, Shao J, Qiu C, Chen Y, Liu B BMC Surg. 2018; 18(1):113.

PMID: 30518347 PMC: 6282245. DOI: 10.1186/s12893-018-0450-z.

Lateral acetabular labral length is inversely related to acetabular coverage as measured by lateral center edge angle of Wiberg.

Petersen B, Wolf B, Lambert J, Clayton C, Glueck D, Jesse M J Hip Preserv Surg. 2016; 3(3):190-6.

PMID: 27583157 PMC: 5005055. DOI: 10.1093/jhps/hnv084.

Prevalence of acetabular labral tears in asymptomatic children.

Georgiadis A, Seeley M, Chauvin N, Sankar W J Child Orthop. 2016; 10(2):149-54.

PMID: 26907862 PMC: 4837174. DOI: 10.1007/s11832-016-0717-9.