Anterior Cruciate Ligament tears and its associated lesions at the Yaounde Teaching Hospital

Moulion Tapouh Jean Roger (
Radiology, The University of Yaounde I
November, 2013


On Magnetic resonance examinations, anterior cruciate ligament tear (ACL) is the most frequent ligamentous injury of the post traumatic knee. This lesion is more commonly due to sport. Actually, there are few data on radiological and epidemiological aspects of this entity in African countries and particularly in Cameroon.

To describe the aspects of ACL tear and its associated lesions after knee trauma at the Yaounde Teaching Hospital.

We carried out a cross-sectional and analytic study on 96 MR examinations of the knee performed between July 2008 and September 2011. A low field (0,2 T) device was used to realize coronal and sagittal plane views of the knee. Proton density, T1 SE and T2 SE weighed images were reviewed to assess the lesions of the cruciate ligaments, menisci, collateral ligaments and other joint abnormalities.

Patients were aged 16 to 59 years (mean age 35.36 ± 11.86 years). Men were 70,8% (68) of the sample. Between the 96 patients, 44 (45.8 %) had ACL tears from which 36 were total, 23 (24%) patients had meniscal tears and 08 (8.33 %) patients had a simultaneous lesion of the tibial and fibular collateral ligaments. The posterior horn of the medial meniscus was the most injured (12/23 cases). Factors independently associated with ACL tear were the presence of a meniscal tear and simultaneous injury of the collateral ligaments.

At the Yaounde Teaching Hospital, ACL tear has a prevalence of 45.8 % and is more commonly total. It is associated with meniscal tears and simultaneous injury of the tibial and fibular collateral ligaments.