Correlation between Trochlear Dysplasia and Anterior Cruciate Ligament Injury. (August 2013)

• Record Type: Journal Article
• Authors: Botchu, Rajesh; Obaid, Haron; Rennie, WJ
• Is Part Of: Journal of orthopaedic surgery. Volume 21:Number 2(2013)
• Page Start: 185
• Page End: 188
• Publication Date: 2013-08
• Subjects: anterior cruciate ligament -- knee injuries; Orthopedic surgery -- Periodicals; Orthopedics; Orthopedic surgery; Periodicals; 617.3
• DOI: 10.1177/230949901302100214
• Languages: English
• ISSNs: 1022-5536

Abstract

Purpose: To evaluate the correlation between trochlear dysplasia and anterior cruciate ligament (ACL) injury Methods: Magnetic resonance images (MRIs) of 95 knees in 54 males and 36 females aged 4 to 74 (mean, 28) years who had anterior knee pain and suspected ligamentous injury were reviewed. The MRIs were independently reviewed by 2 musculoskeletal radiologists on 2 occasions. According to the Dejour classification, trochlear dysplasia was classified into types A, B, C, and D. Intra-articular injuries/disorders of the patients included patellofemoral osteoarthritis, chondromalacia patella, meniscal tears, and ligamentous injuries. Intra- and inter-observer variability was calculated. Results: 58 of the knees had trochlear dysplasia, 38 of which were Dejour type A. The intra- and inter-observer variability was good to excellent (Kappa=0.76–1). ACL tear was the most common injury (n=13). No ACL injury occurred in patients without trochlear dysplasia. The odds of having sustained an ACL injury were 8.8 fold greater in Dejour type-A knees than in non–type-A knees (p=0.023). Conclusion: Dejour type-A trochlear dysplasia was associated with ACL injuries.