Abstract
Background: Anterior cruciate ligament (ACL) rupture is an increasingly common injury in the young population. Unfortunately, reinjury rates in this population following ACL reconstruction (ACLR) are also very high. As such, lateral extra-articular procedures have been proposed to augment ACLR and shown to reduce reinjury rates. Most techniques use a strip of iliotibial band (ITB) fixed proximally on the distal femur in close proximity to the lateral femoral epicondyle, which in the skeletally immature patient may be closely associated with the distal femoral physis. In addition, there is also a risk of convergence with the femoral tunnel for the ACLR. The modified Ellison technique avoids both of these risks given it is a distally based tenodesis with its fixation point on the proximal tibial epiphysis. The purpose of this video is to describe a modified Ellison technique in a skeletally immature patient. Indications: Primary ACLR in skeletally immature patients at high risk of ACL graft rerupture due to their young age, a positive family history of ACL rupture in a first-degree relative, previous contra-lateral ACL rupture, generalized joint hypermobility, high-grade pivot-shift test, and participating in pivoting sports. Technique Description: The modified Ellison technique is a distally based lateral extra-articular procedure. A 1-cm strip of ITB is detached from Gerdy’s tubercle, passed beneath the lateral collateral ligament, and reattached back to from where it was removed. The fixation is within the proximal epiphysis of the tibia. Results: In a high-risk adult population, the modified Ellison technique has been shown to have a low ACL graft reinjury rate at 2 years following an ACLR. Biomechanical studies have demonstrated that a modified Ellison technique closely restores native knee kinematics following simulated anterolateral complex injury. Discussion/Conclusion: The modified Ellison technique is a safe and reproducible lateral extra-articular procedure in skeletally immature patients when performed in combination with an ACLR. Patient Consent Disclosure Statement: The author(s) attests that consent has been obtained from any patient(s) appearing in this publication. If the individual may be identifiable, the author(s) has included a statement of release or other written form of approval from the patient(s) with this submission for publication.
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