Clin Orthop Surg.  2012 Jun;4(2):167-170. 10.4055/cios.2012.4.2.167.

Mucoid Degeneration of Both ACL and PCL

• Cho SD
• Youm YS
• Lee CC
• Seo DK
• Kim TW

• KMID: 1383880
• DOI: http://doi.org/10.4055/cios.2012.4.2.167

Abstract

Unlike meniscal tears and chondral defects, the mucoid degeneration of the anterior cruciate ligament (ACL) is a rare cause of knee pain and there have been no case reports of mucoid degeneration of both the ACL and the posterior cruciate ligament (PCL). A 48-year-old-male patient presented with knee pain and limitation of motion. The patient's magnetic resonance imaging, arthroscopic findings, and pathologic diagnosis confirmed a clinical diagnosis of mucoid degeneration of both the ACL and the PCL. The symptoms disappeared after arthroscopic partial excision of the ACL and PCL.

Keyword

Knee; Anterior cruciate ligament; Posterior cruciate ligament; Mucoid degeneration

MeSH Terms

Anterior Cruciate Ligament/*pathology/radiography
Arthralgia/etiology
Humans
Joint Diseases/diagnosis/*pathology/radiography
Knee Joint/*pathology/radiography
Male
Middle Aged
Posterior Cruciate Ligament/*pathology/radiography

Figure

• 

  Fig. 1 Anteroposterior, tunnel and lateral radiographs of the right knee joint show mild arthritic changes.

• 

  Fig. 2 Sagittal images of anterior (A, B) and posterior (C, D) cruciate ligaments on magnetic resonance imaging show inhomogeneous intensity and hypertrophy (T1-weighted [A, C] and T2-weighted [B, D], respectively).

• 

  Fig. 3 Arthroscopic findings of anterior and posterior cruciate ligaments showed preoperative hypertrophic changes (A) and postoperative state after partial excision (B).

• 

  Fig. 4 Histologic findings of anterior (A) and posterior (B) cruciate ligaments showed mucoid degeneration (H&E, × 400).

Reference

1. Fealy S, Kenter K, Dines JS, Warren RF. Mucoid degeneration of the anterior cruciate ligament. Arthroscopy. 2001. 17(9):E37.

2. Hsu CJ, Wang SC, Fong YC, Huang CY, Chiang IP, Hsu HC. Mucoid degeneration of the anterior cruciate ligament. J Chin Med Assoc. 2006. 69(9):449–452.

3. Kumar A, Bickerstaff DR, Grimwood JS, Suvarna SK. Mucoid cystic degeneration of the cruciate ligament. J Bone Joint Surg Br. 1999. 81(2):304–305.

4. McIntyre J, Moelleken S, Tirman P. Mucoid degeneration of the anterior cruciate ligament mistaken for ligamentous tears. Skeletal Radiol. 2001. 30(6):312–315.

5. Melloni P, Valls R, Yuguero M, Saez A. Mucoid degeneration of the anterior cruciate ligament with erosion of the lateral femoral condyle. Skeletal Radiol. 2004. 33(6):359–362.

6. Motmans R, Verheyden F. Mucoid degeneration of the anterior cruciate ligament. Knee Surg Sports Traumatol Arthrosc. 2009. 17(7):737–740.

7. Narvekar A, Gajjar S. Mucoid degeneration of the anterior cruciate ligament. Arthroscopy. 2004. 20(2):141–146.

8. Nishimori M, Sumen Y, Sakaridani K. Mucoid degeneration of the anterior cruciate ligament: a report of two cases. Magn Reson Imaging. 2004. 22(9):1325–1328.

9. Kim TH, Lee DH, Lee SH, Kim JM, Kim CW, Bin SI. Arthroscopic treatment of mucoid hypertrophy of the anterior cruciate ligament. Arthroscopy. 2008. 24(6):642–649.