Background:
Fixed-loop and adjustable-loop are two types of cortical suspension devices that are used for graft fixation in anterior cruciate ligament reconstruction (ACLR). In this study, the authors compared clinical and functional outcomes of these devices in ACLR surgery.
Methods:
In a retrospective study, 60 patients who underwent ACLR using either fixed-loop (30 patients) or adjustable-loop were included. Clinical measures were Lachman test, pivot shift test, KT-1000, lack of extension, and flexion. Functional measures were 12-item Short-Form Health Survey, including the Physical Component Summary and the Mental Component Summary, International Knee Documentation Committee score, and Lysholm-Tegner activity scale.
Results:
The mean age of the patients was 31±7.5 yr. The mean follow-up of the patients was 18.5±6.4 mo. The grading of the Lachman test, pivot shift test, and KT-1000 were not significantly different between the study groups (P=0.47, P=1, and P=0.6, respectively). Lack of extension and flexion were not significantly different between the study groups (P=0.79 and P=0.28, respectively). The Physical Component Summary, Mental Component Summary, International Knee Documentation Committee, and Lysholm-Tegner activity scale were statistically comparable between the two study groups (P=0.46, P=0.68, P=0.55, P=0.77, respectively). Graft failure (KT>5 mm) was seen in seven patients (23.3%) of the fixed-loop group and four patients (13.3%) of the adjustable-loop group (P=0.31).
Conclusions:
Clinical and functional outcomes of fixed and adjustable-loop devices are comparable when used for femoral fixation in patients undergoing ACLR.
Level of Evidence:
Level IV.