Evaluation of Labral Pathology and Hip Articular Cartilage in Patients with Femoroacetabular Impingement (FAI): Comparison of Multidetector CT Arthrography and MR Arthrography

Overview

Journal Pol J Radiol

Publisher Termedia

Specialty Radiology

Date 2014 Oct 30

PMID 25352941

Citations 10

Authors

Murat Sahin

Cuneyt Calisir

Hakan Omeroglu

Ulukan Inan

Fezan Mutlu

Tamer Kaya

Affiliations

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Abstract

Background: To compare the multidetector computed tomography (MDCT) arthrography (CTa) and magnetic resonance (MR) arthrography (MRa) findings with surgical findings in patients with femoroacetabular impingement (FAI) and to evaluate the diagnostic performance of these methods.

Material/methods: Labral pathology and articular cartilage were prospectively evaluated with MRa and CTa in 14 hips of 14 patients. The findings were evaluated by two musculoskeletal radiologists with 10 and 20 years of experience, respectively. Sensitivity, specificity, accuracy, and positive predictive value were determined using surgical findings as the standard of reference.

Results: While the disagreement between observers was recorded in two cases of labral tearing with MRa, there was a complete consensus with CTa. Disagreement between observers was found in four cases of femoral cartilage loss with both MRa and CTa. Disagreement was also recorded in only one case of acetabular cartilage loss with both methods. The percent sensitivity, specificity, and accuracy for correctly assessing the labral tearing were as follows for MRa/CTa, respectively: 100/100, 50/100, 86/100 (p<0.05). The same values for acetabular cartilage assessment were 89/56, 40/60, 71/71 (p>0.05) and for femoral cartilage assessment were 100/75, 90/70, 86/71 (p>0.05). Inter-observer reliability value showed excellent agreement for labral tearing with CTa (κ=1.0). Inter-observer agreement was substantial to excellent with regard to acetabular cartilage assessment with MRa and CTa (κ=0.76 for MRa and κ=0.86 for CTa).

Conclusions: Inter-observer reliability with CTa is excellent for labral tearing assessment. CTa seems to have an equal sensitivity and a higher specificity than MRa for the detection of labral pathology. MRa is better, but not statistically significantly, in demonstrating acetabular and femoral cartilage pathology.

Citing Articles

Combined 3-Dimensional CT and Multidirectional CT Arthrography for Femoroacetabular Impingement and Hip Lesions: A Cross-sectional Study Comparing Imaging and Hip Arthroscopic Surgery Findings.

Chuang C, Sheu H, Yang C, Tang H, Wu C, Fu C Orthop J Sports Med. 2023; 11(1):23259671221143459.

PMID: 36644778 PMC: 9834784. DOI: 10.1177/23259671221143459.

3.0 T MRI is more recommended to detect acetabular labral tears than MR Arthrography: an updated meta-analysis of diagnostic accuracy.

Zhang P, Li C, Wang W, Zhang B, Miao W, Liu Y J Orthop Surg Res. 2022; 17(1):126.

PMID: 35232459 PMC: 8886969. DOI: 10.1186/s13018-022-02981-1.

Validity of direct magnetic resonance arthrogram in patients with femoroacetabular impingement and their outcome post hip arthroscopy.

Mohan R, Unnikrishnan P, Gudena R J Orthop. 2020; 18:204-208.

PMID: 32055144 PMC: 7005474. DOI: 10.1016/j.jor.2019.11.003.

Diagnostic sensitivity and specificity of dynamic three-dimensional CT analysis in detection of cam and pincer type femoroacetabular impingement.

Roling M, Mathijssen N, Bloem R BMC Musculoskelet Disord. 2020; 21(1):37.

PMID: 31948418 PMC: 6966890. DOI: 10.1186/s12891-020-3049-3.

Poor Sensitivity of Magnetic Resonance Arthrography to Detect Hip Chondral Delamination: A Retrospective Follow-Up of 227 FAI-Operated Patients.

Konstantinidis G, Mitchell M, Boyd G, Coady C, Ghosh S, Wong I Cartilage. 2019; 12(2):162-168.

PMID: 30674199 PMC: 7970378. DOI: 10.1177/1947603518816453.

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