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Meniscal Transplantation-Update on Indications, Techniques, and Outcomes.
Derrick M Knapik1, Matthew V Smith, Matthew J Matava
1From the Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO.
The Journal of the American Academy of Orthopaedic Surgeons
|April 16, 2026
Summary
Meniscal allograft transplantation (MAT) offers promising outcomes for young, active patients with knee injuries. This review covers the latest evidence on MAT indications, techniques, and results.
Area of Science:
- Orthopedic surgery
- Sports medicine
- Regenerative medicine
Background:
- Meniscal tears are common and often treated surgically.
- Arthroscopic resection is the current standard for most meniscal tears.
- Meniscal allograft transplantation (MAT) is an emerging option for specific knee conditions.
Purpose of the Study:
- To review the latest evidence on Meniscal Allograft Transplantation (MAT).
- To discuss indications, surgical techniques, complications, rehabilitation, and outcomes of MAT.
- To evaluate the evolving role of MAT in treating meniscal deficiency.
Main Methods:
- Literature review of recent studies on MAT.
- Analysis of current clinical evidence and outcomes.
- Synthesis of data on surgical procedures and patient recovery.
Main Results:
- MAT shows good long-term outcomes in young, active patients.
- Evidence for MAT's chondroprotective effects is still under investigation.
- Indications for meniscal repair are expanding, but resection remains common.
Conclusions:
- MAT is a viable treatment option for symptomatic meniscal-deficient knees.
- Further research is needed to confirm the long-term chondroprotective benefits of MAT.
- MAT represents a significant advancement in knee reconstruction techniques.
