J Knee Surg 2019; 32(07): 620-623
DOI: 10.1055/s-0038-1666827
Original Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Value of Preoperative MRI and Examination under Anesthesia for Differentiating Complete from Partial Anterior Cruciate Ligament Tears

Leonardo Cavinatto
1  Jefferson 3B Orthopaedic Institute, Philadelphia, Pennsylvania
,
Sunny Gupta
1  Jefferson 3B Orthopaedic Institute, Philadelphia, Pennsylvania
,
Craig Morgan
2  Morgan-Kalman Clinic, Wilmington, Delaware
,
Arthur R. Bartolozzi
1  Jefferson 3B Orthopaedic Institute, Philadelphia, Pennsylvania
› Author Affiliations
Further Information

Publication History

13 November 2017

26 May 2018

Publication Date:
10 July 2018 (eFirst)

Abstract

Partial tears of the anterior cruciate ligament (ACL) recently regained attention due to a better understanding of the two distinct bundles of the ligament and the possibility of single-bundle reconstruction procedures. An accurate diagnosis is important as it influences treatment options and patient prognosis. The aim of this study was to evaluate the value of examination under anesthesia (EUA) and magnetic resonance imaging (MRI) for differentiating partial from complete ACL tears. For this purpose, this prospective case series included 95 consecutive patients undergoing primary ACL reconstruction surgeries. MRI, EUA, and MRI combined with EUA were performed preoperatively, and results were compared with arthroscopy. Our data showed that ACL lesions were diagnosed as partial tears in 42.1% (n = 40) of EUA, 23.2% (n = 22) of MRI, and 11.6% (n = 11) of arthroscopies. EUA and MRI demonstrated sensitivity of 100 and 90.1%, and specificity of 65.5 and 85.6%, respectively. Combined EUA and MRI demonstrated sensitivity of 100% and specificity of 83.1%. Our study revealed that preoperatively MRI and EUA may help surgeons early identify partial ACL tears and influence treatment decisions.