Anatomical Single-bundle Anterior Cruciate Ligament Reconstruction Using a Freehand Transtibial Technique

ABSTRACT

PURPOSE: In anatomical single-bundle (SB) anterior cruciate ligament (ACL) reconstruction, the traditional transtibial approach can limit anatomical placement of the femoral tunnel. SURGICAL TECHNIQUE: We present a novel three-point freehand technique that allows for anatomic SB ACL reconstruction with the transtibial technique. MATERIALS AND METHODS: Between January 2012 and December 2012, 55 ACL reconstructions were performed using the three-point freehand technique. All the patients were followed for a minimum of 12 months post-operatively. Clinical evaluation was done using the Lysholm score and International Knee Documentation Committee (IKDC) grade. All patients were analyzed by 3-dimensional computed tomography (3D CT) at 1 week after surgery. RESULTS: The mean Lysholm score improved from 68.2+/-12.7 points preoperatively to 89.2+/-8.2 points at final follow-up. At final follow-up, the IKDC grade was normal in 42 patients and nearly normal in 13 patients. None of the patients had a positive pivot shift test, anterior drawer test and Lachman test at final follow-up. The anatomical position of the femoral tunnel was confirmed on 3D CT scans. CONCLUSIONS: The three-point freehand technique for SB transtibial ACL reconstruction is a simple, anatomic technique showing good clinical results.