Mucoid degeneration of the anterior cruciate ligament: MRI, clinical, intraoperative, and histological findings

Arturo Makino, Cecilia Pascual-Garrido, Alejandro Rolón, Mariana Isola, Domingo L. Muscolo

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Purpose: To describe the clinical, MRI, intraoperative, and histological features of mucoid degeneration of the anterior cruciate ligament (ACL). Methods: This study included 10 patients (average age 47 years, range 19-69 years) who underwent surgery due to clinical diagnoses of mucoid degeneration of the ACL. All patients underwent preoperative magnetic resonance imaging (MRI) and were arthroscopically treated. Results: All 10 patients reported preoperative posterior knee pain. MRI indicated a thickened ACL with increased signal on all sequences. Postoperatively, only six of 10 patients were confirmed by biopsy to have a mucoid degeneration of the ACL. An associated intraosseous tibial cyst or ganglion was observed only in patients with a definitive diagnosis of mucoid degeneration. Conclusions: Mucoid degeneration of the ACL can be suspected in patients with posterior knee pain associated with a thickened ACL. Associated findings such as an intraosseous tibial or ganglion cyst help to rule out differential diagnosis.

Original languageEnglish
Pages (from-to)408-411
Number of pages4
JournalKnee Surgery, Sports Traumatology, Arthroscopy
Volume19
Issue number3
DOIs
StatePublished - Jan 1 2011
Externally publishedYes

Keywords

  • ACL
  • Ganglion
  • Intraosseous tibial cyst
  • Mucoid

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