European Radiology

, Volume 13, Supplement 6, pp L181–L184

Reversed double PCL sign: unusual location of a meniscal fragment of the knee observed by MR imaging

Musculoskeletal

Abstract

A 36-year-old woman with tears of the anterior cruciate ligament and medial meniscus received a meniscectomy. The MR images obtained prior to the partial meniscectomy showed a bucket-handle meniscal tear with centrally displaced fragment lying anterior to the posterior cruciate ligament (PCL), representing a "double PCL sign"; however, after the meniscectomy, MR images demonstrated a fragment in the space posterior to the PCL where no structure is generally recognized except for the ligament of Wrisberg. This article reports a "reversed" double PCL sign, caused by inadequate surgical clearance of a bucket-handle tear of the medial meniscus.

Keywords

Knee Anatomy Meniscus MRI 

References

  1. 1.
    Weiss KL, Morehouse HT, Levy IM (1991) Sagittal MR images of the knee: a low-signal band parallel to the posterior cruciate ligament caused by a displaced bucket-handle tear. AJR 156:117–119PubMedGoogle Scholar
  2. 2.
    Singson RD, Feldman F, Staron R, Kierman H (1991) MR imaging of displaced bucket-handle tear of the medial meniscus. AJR 156:121–124PubMedGoogle Scholar
  3. 3.
    Wright DH, De Smet AA, Norris M (1995) Bucket-handle tears of the medial and lateral menisci of the knee: value of MR imaging in detecting displaced fragments. AJR 165:621–625PubMedGoogle Scholar
  4. 4.
    Ruff C, Weingardt JP, Russ PD, Kilcoyne RF (1998) MR imaging patterns of displaced meniscus injuries of the knee. AJR 170:63–67PubMedGoogle Scholar
  5. 5.
    Helms CA, Laorr A, Cannon WD Jr (1998) The absent bow tie sign in bucket-handle tears of the meniscus in the knee. AJR 170:57–61PubMedGoogle Scholar
  6. 6.
    Dandy DJ (1990) The arthroscopic anatomy of symptomatic meniscal lesions. J Bone Joint Surg Br 72-B:628–633Google Scholar
  7. 7.
    Philips BB (1998) Arthroscopy of lower extremity. In: Canale ST (ed) Campbell's operative orthopaedics. Mosby-Year Book, St. Louis, pp 1470–1561Google Scholar
  8. 8.
    Watanabe A, Carter BC, Teitelbaum GP et al. (1989) Normal variants in MR imaging of the knee: appearance and frequency. AJR 153:341–344PubMedGoogle Scholar

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  1. 1.Department of Radiology, Institute of Clinical MedicineUniversity of TsukubaTennodai, Tsukuba, IbarakiJapan
  2. 2.Department of Orthopedic Surgery, Institute of Clinical MedicineUniversity of TsukubaTennodai, Tsukuba, IbarakiJapan

Personalised recommendations