Table 1.

Indications of meniscal allograft transplantation [106, 109]

1. Previous subtotal or total meniscectomy with persistent pain and swelling that does not respond to conservative treatment

2. Age ≤ 60 years (Lee-2020) < 55 years (Kim-2017, Kim-2018) < 50 years (Jang-2011) < 45 years (Ha-2010, Ha-2014)

3. Normal axis of the lower limb as shown in the scanogram

4. Absence of knee instability

5. Damage of the articular cartilage up to grade 2 according to the Outerbridge classification

6. Knee OA grade ≤ 2 according to the Kellgren–Lawrence or Ahlbäck classification*

OA osteoarthritis

*Localized articular cartilage degeneration of stage 3 or 4, which is limited to the area covered by the meniscus, is not considered a contraindication for meniscal transplantation (Kim-2017, Kim-2018, Lee-2020)