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📌 Understanding the causes of graft failure is crucial for improving meniscal allograft transplantation (MAT) outcomes. The primary reasons for graft failure include:
1️⃣ Implantation Site Issues:
- Failures can occur due to avulsion at the root, unsuccessful plug incorporation, or fracture of the bone bridge.
2️⃣ Healing Complications:
- Incomplete healing or detachment from the meniscocapsular junction can compromise graft stability.
3️⃣ Graft Shrinkage:
- A reduction in graft size postoperatively can affect its function and longevity.
4️⃣ Infection:
- Postoperative infections can lead to significant complications, including graft failure.
4️⃣ Meniscus Tearing:
- Similar to native meniscus tears, allograft tears are identified by fluid signals extending to the graft surface on imaging.
✅ Additionally, signs of allograft menisci degeneration and tearing should prompt careful consideration, particularly when:
- There is a progression of peripheral extrusion.
- Delayed increases in meniscus signals are observed after MAT.
- Fluid signals are seen on T2-weighted MRI images.
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