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ACL Reconstruction Failure and MCL
Researchers writing in Clinical Orthopaedics and Related Research say treating anterior cruciate ligament (ACL) lesions combined with a torn medial collateral ligament (MCL) is controversial because residual laxity may lead to stretching of the ACL graft and eventual failure of the reconstruction.

Zaffagnini S, Bignozzi S, Martelli S, Lopomo N, Marcacci M. Does ACL reconstruction restore knee stability in combined lesions?: An in vivo study. Clin Orthop Relat Res. 2007 Jan;454:95-9.
 

Treating anterior cruciate ligament (ACL) lesions combined with a torn medial collateral ligament (MCL) is controversial because residual laxity may lead to stretching of the ACL graft and eventual failure of the reconstruction. Few studies describe the in vivo translations of combined ACL and MCL injuries. We compared the preoperative and postoperative laxity between patients with combined ACL+MCL Grade II injuries and isolated ACL ruptures and tested whether an ACL reconstruction could restore all laxities in both groups. We evaluated knee kinematics during ACL reconstruction in 57 patients (37 ACL lesions and 20 ACL+MCL injury). Laxity tests were performed before and after graft fixation. Postoperatively, there was greater anteroposterior laxity and greater varus-valgus laxity in the group with MCL injury compared to the group with an ACL lesion only.

This finding suggests residual laxities remain when ACL reconstruction is performed in patients with combined ACL+MCL lesion, and raises the question of addressing the MCL ligament when Grade II laxity is found
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Patient's stories herein, and the language used, is intended to inform and educate. HOWEVER, it does not imply that you or anyone else will receive the same outcome.

Prolotherapy and other modalities mentioned are medical techniques that may not be considered mainstream. As with any medical procedure, results will vary among individuals, and there could be pain or substantial risks involved. These concerns should be discussed with your health care provider prior to any treatment so that you have proper informed consent and understand that there are no guarantees to healing.


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Dr. Darrow, nor any associate of Joint Rehab offer medical advice on this website. This information is offered for educational purposes only. Do not act or rely upon our information without seeking independent professional medical advice. The transmission of this information does not create a physician-patient relationship between you and Dr. Darrow or any associate of Joint Rehab. Neither Dr. Darrow, nor any associate of Joint Rehab guarantees the accuracy, completeness, usefulness, or adequacy of any resources, information, apparatus, product, or process available at or from this transmission. The photos in this Web site feature models for illustrative purposes and do not depict real patients.

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