Meniscal abnormalities: Discoid meniscus

Vivek Pandey, Simon Nurettin Van Laarhoven, Kiran K.V. Acharya, Sharath K. Rao, Sripathi Rao

Research output: Contribution to journalReview article

Abstract

The discoid meniscus is the most common meniscal variant. The likely etiology being congenital, the condition usually affects the lateral meniscus. Poorly vascularized, thicker and unstable, the discoid lateral meniscus (DLM) is more prone to tears due to abnormal shearing forces. Watanabe et al. (1979) classified the discoid lateral meniscus into three types: Complete, incomplete and Wrisberg type; Monllau et al. (1998) added the ring type as the fourth variant. Pain and clicks/thud are the most common presentations. Plain radiograph and magnetic resonance imaging are helpful in confirming the diagnosis. Asymptomatic DLM is best left alone. For symptomatic complete and incomplete types, partial arthroscopic saucerization is the treatment of choice leaving behind a stable rim. The Wrisberg type needs peripheral stabilization with resection of excess rim, if any. Total meniscectomy should be avoided unless inevitable. Short term results after partial meniscectomy are good.

Original languageEnglish
Article number1230001
JournalJournal of Musculoskeletal Research
Volume15
Issue number1
DOIs
Publication statusPublished - 03-2012

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Tibial Meniscus
Tears
Magnetic Resonance Imaging
Pain
Meniscus

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

Cite this

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title = "Meniscal abnormalities: Discoid meniscus",
abstract = "The discoid meniscus is the most common meniscal variant. The likely etiology being congenital, the condition usually affects the lateral meniscus. Poorly vascularized, thicker and unstable, the discoid lateral meniscus (DLM) is more prone to tears due to abnormal shearing forces. Watanabe et al. (1979) classified the discoid lateral meniscus into three types: Complete, incomplete and Wrisberg type; Monllau et al. (1998) added the ring type as the fourth variant. Pain and clicks/thud are the most common presentations. Plain radiograph and magnetic resonance imaging are helpful in confirming the diagnosis. Asymptomatic DLM is best left alone. For symptomatic complete and incomplete types, partial arthroscopic saucerization is the treatment of choice leaving behind a stable rim. The Wrisberg type needs peripheral stabilization with resection of excess rim, if any. Total meniscectomy should be avoided unless inevitable. Short term results after partial meniscectomy are good.",
author = "Vivek Pandey and {Van Laarhoven}, {Simon Nurettin} and Acharya, {Kiran K.V.} and Rao, {Sharath K.} and Sripathi Rao",
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Meniscal abnormalities : Discoid meniscus. / Pandey, Vivek; Van Laarhoven, Simon Nurettin; Acharya, Kiran K.V.; Rao, Sharath K.; Rao, Sripathi.

In: Journal of Musculoskeletal Research, Vol. 15, No. 1, 1230001, 03.2012.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Meniscal abnormalities

T2 - Discoid meniscus

AU - Pandey, Vivek

AU - Van Laarhoven, Simon Nurettin

AU - Acharya, Kiran K.V.

AU - Rao, Sharath K.

AU - Rao, Sripathi

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N2 - The discoid meniscus is the most common meniscal variant. The likely etiology being congenital, the condition usually affects the lateral meniscus. Poorly vascularized, thicker and unstable, the discoid lateral meniscus (DLM) is more prone to tears due to abnormal shearing forces. Watanabe et al. (1979) classified the discoid lateral meniscus into three types: Complete, incomplete and Wrisberg type; Monllau et al. (1998) added the ring type as the fourth variant. Pain and clicks/thud are the most common presentations. Plain radiograph and magnetic resonance imaging are helpful in confirming the diagnosis. Asymptomatic DLM is best left alone. For symptomatic complete and incomplete types, partial arthroscopic saucerization is the treatment of choice leaving behind a stable rim. The Wrisberg type needs peripheral stabilization with resection of excess rim, if any. Total meniscectomy should be avoided unless inevitable. Short term results after partial meniscectomy are good.

AB - The discoid meniscus is the most common meniscal variant. The likely etiology being congenital, the condition usually affects the lateral meniscus. Poorly vascularized, thicker and unstable, the discoid lateral meniscus (DLM) is more prone to tears due to abnormal shearing forces. Watanabe et al. (1979) classified the discoid lateral meniscus into three types: Complete, incomplete and Wrisberg type; Monllau et al. (1998) added the ring type as the fourth variant. Pain and clicks/thud are the most common presentations. Plain radiograph and magnetic resonance imaging are helpful in confirming the diagnosis. Asymptomatic DLM is best left alone. For symptomatic complete and incomplete types, partial arthroscopic saucerization is the treatment of choice leaving behind a stable rim. The Wrisberg type needs peripheral stabilization with resection of excess rim, if any. Total meniscectomy should be avoided unless inevitable. Short term results after partial meniscectomy are good.

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