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. 2014 Jul;24(5):789-95.
doi: 10.1007/s00590-013-1248-4. Epub 2013 Jun 7.

Knee pain after anterior cruciate ligament reconstruction: evaluation of a rehabilitation protocol

F Gadea  1 , D Monnot, B Quélard, R Mortati, M Thaunat, J M Fayard, B Sonnery-Cottet
Affiliations

Knee pain after anterior cruciate ligament reconstruction: evaluation of a rehabilitation protocol

F Gadea et al. Eur J Orthop Surg Traumatol. 2014 Jul.

Abstract

Introduction: Anterior knee pain (AKP) is a rare and difficult complication following anterior cruciate ligament (ACL) reconstruction. This disabling pain is persistent with conventional rehabilitation protocols. The aim of this work is to validate a new rehabilitation protocol that may improve the patients and allow return to daily activities including sports.

Materials and methods: Forty-three patients identified with functional AKP after ACL reconstruction was enrolled in the rehabilitation protocol between 2009 and 2011. The series included twenty-six patients with hamstring grafting and seventeen patients with patellar tendon transplant. This study compares the functional outcomes and pain scores before and after the isokinetic protocol until the last follow-up at an average of 25.7 months after surgery. The evaluation was performed according to the International Knee Documentation Committee (IKDC) and included a pain assessment using the visual analog scale. Statistical analysis used Student's t-test for unpaired data and the Pearson correlation test for the variables. The IKDC scores were compared by the Wilcoxon test.

Results: Functional outcomes and pain are significantly improved (p<0.0001). The average IKDC score improved with 28 points and the pain improved with 3.2 points on the visual analog scale (VAS). The results are correlated with the follow-up time (p=0.008) but not correlated with the delay between the surgery and the beginning of the isokinetic protocol.

Discussion: Isokinetic rehabilitation provides a significant improvement in the knee function as measured by the IKDC score and by the VAS, regardless of the painful period preceding the program. The function improvement continues after the end of the protocol, but the pain may not completely disappear. The isokinetic rehabilitation program may resume functional AKP related to muscular deficit and may be used as the starter of other physical therapy protocols.

Level of evidence: IV.

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