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Anterior cruciate ligament mucoid degeneration: a review of the literature and management guidelines

  • Knee
  • Published:
Knee Surgery, Sports Traumatology, Arthroscopy Aims and scope

Abstract

Purpose

Anterior cruciate ligament (ACL) mucoid degeneration is a rare encounter in clinical practice, different, but often confused with ACL mucoid cysts. Its pathophysiology remains unclear. However, recent publications have suggested that it might be underdiagnosed or misdiagnosed, and that the adverse effects of treatment by ACL resection might be underestimated. The object of this work was to summarize this scattered knowledge to improve patient management.

Methods

The authors carried out an exhaustive and comprehensive review of up-to-date literature. An extensive search of the MEDLINE database was carried out using MESH terms (ganglion cyst, anterior cruciate ligament) and generic search terms (mucoid degeneration, hypertrophy).

Results

Anterior cruciate ligament mucoid degeneration is determined by interstitial glycosaminoglycan deposits amidst the collagen bundles causing ACL hypertrophy, knee pain, and limited range of motion. It is thought to arise from a primary synovial lesion and is associated with arthritic change or subsequent to acute or repeated trauma. Diagnosis is made on MRI scans and confirmed on histopathological samples. Current treatment involving ACL arthroscopic resection is efficient on pain and range of motion but is not a benign procedure and causes knee laxity.

Conclusions

Anterior cruciate ligament mucoid degeneration needs to be more broadly known and properly diagnosed so that progress can be made in its management. Further research will be necessary to confirm the current trends in the literature, which suggest being less aggressive with ACL arthroscopic resection when dealing with mucoid degeneration and making more use of conservative measures such as notchplasty.

Level of evidence

Systematic review, Level IV.

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Authors and Affiliations

  1. Andre Mignot Hospital of Versailles, 177 route de Versailles, 78150, Le Chesnay, France

    Francois Lintz, Nicolas Pujol, Philippe Boisrenoult & Philippe Beaufils

  2. University Hospital of Nantes, 1 place Alexis Ricordeau, 44000, Nantes, France

    Kevin Bargoin

  3. Clinique de la sauvegarde, 480 avenue Ben Gourion, 69009, Lyon, France

    David Dejour

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  1. Francois Lintz
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  2. Nicolas Pujol
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  3. Philippe Boisrenoult
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  4. Kevin Bargoin
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  5. Philippe Beaufils
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  6. David Dejour
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Correspondence to Francois Lintz.

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Lintz, F., Pujol, N., Boisrenoult, P. et al. Anterior cruciate ligament mucoid degeneration: a review of the literature and management guidelines. Knee Surg Sports Traumatol Arthrosc 19, 1326–1333 (2011). https://doi.org/10.1007/s00167-011-1433-0

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  • DOI: https://doi.org/10.1007/s00167-011-1433-0

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