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Review
. 2024 Apr 24;58(6):619-636.
doi: 10.1007/s43465-024-01137-z. eCollection 2024 Jun.

Long Term Surgical and Radiological Outcome of Discoid Lateral Meniscus: An Updated Systematic Review

Kriti Mohan  1 , Ajay Bharti  1 , Manish Kumar  1 , Nitish Kumar  1 , Vivek Kumar  1 , Rajnand Kumar  1 , Sudhir Shyam Kushwaha  1
Affiliations
Review

Long Term Surgical and Radiological Outcome of Discoid Lateral Meniscus: An Updated Systematic Review

Kriti Mohan et al. Indian J Orthop. .

Abstract

Purpose of the study: This study aimed to reach a consensus for ideal surgical treatment of discoid lateral meniscus (DLM) and to evaluate its long term surgical and radiological outcome.

Methods: All authors independently searched for peer reviewed publications with keywords like discoid lateral meniscus, tibial menisci abnormalities, tibial menisci surgery and clinical outcome and their representative Medical Subjects Headings (MeSH) in databases of PubMed, EBSCO, Cochrane Central Register of Controlled Trials, from inception to December 2022. Original articles in English language on discoid lateral meniscus reporting clinical, surgical, or radiological outcomes with five or more years of follow-up were included in this systematic review. Study details and outcome data were analysed according to the age, follow-up period, kind of surgery, DLM type, and alignment.

Results: Our search strategy yielded 654 articles in PubMed, 222 articles in EBSCO and 5 articles in CENTRAL i.e. a total of 881 articles. After detailed assessment and screening, 12 articles were included in the final analysis, which included 444 DLM cases. The mean patient age at surgery ranged from 9.9 to 35.9 years, and the mean follow-up period ranged from 5.2 to 16 years. Partial meniscectomy and meniscoplasty are the recommended treatment because of the concerns of degenerative arthritis development after the total and subtotal meniscectomies. Two studies have documented better results with meniscal allograft transplantation.

Conclusion: Satisfactory clinico-radiological outcome can be obtained after surgical treatment of discoid lateral meniscus with meniscus reshaping and repair of peripheral unstable part. Meniscal allograft transplantation (MAT) is gaining popularity in patients with total meniscectomy with satisfactory long term functional outcome.

Keywords: Discoid lateral meniscus; Knee; Meniscal allograft transplantation; Meniscectomy; Meniscoplasty; Meniscus repair; Systematic review.

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Conflict of interest statement

Conflict of interestThe authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
PRISMA flow chart
Fig. 2
Fig. 2
Ikeuchi Scores (post-operative) of included studies
Fig. 3
Fig. 3
Percentage of degenerative change at final follow-up in included studies
See this image and copyright information in PMC

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