Table 2.
Failure rates in MAT studies
| Study | Number of MATs | Mean FU (range) years | Defn failure | Proportion failed |
|---|---|---|---|---|
| Abat et al. [1], González-Lucena et al. [17] | 88 | 5 years (2.5–10) | Removal of graft | Suture only 9% |
| Suture fixation 33 | Bone fixation 3.6% | |||
| Bony fixation 55 | ||||
| Cole et al. [13] | 40 | 2.8 years (2–4.8) | Conversion to KA | 7.5% |
| Kim et al. [23] | 110 | 4.1 years (2–13.7) | Poor clinical results | 10.9% |
| Failure (resection, TKA, poor Lysholm) | 2% 10 year, 7% 15 years | |||
| Marcacci et al. [28] | 32 | 3.4 years (3–5.5) | Debridement, meniscectomy or poor result | 6.3% |
| Mahmoud et al. [27] | 45 | 8.6 years (SD 3.4) | Removal of MAT or KA | OCS 0–2 no failures |
| OCS 3–4 26% | ||||
| McCormick et al. [29] | 200 | 4.9 years (2–9.8) | Revision MAT or TKA | 4.7% |
| 1.5% conversion to KR | ||||
| Noyes et al. [33] | 40 | 3.3 years (2.0–5.8) | 7.9% | |
| Noyes and Barber-Westin [32] | 58 | 17.3 years | Persistent pain or detached or torn allograft | 15.3% |
| Parkinson et al. [35] | 124 | 3 years (1–10) | Graft removal, revision MAT or KA | 10.5% |
| Riboh et al. [38] | 32 | 7.2 years (2–15) | Not reported (but revision MAT was an outcome | 22% |
| Rue et al. [42] | 31 | 3.1 years | Revision or removal | 6% |
| Saltzman et al. [43] | ND 22 | ND 4.5 years | Revision MAT or | ND 15% |
| FTD 69 | FTD 2.5 years | KA | FTD 16.2% | |
| MAT + ACL 40 | MAT + ACL 5.7 years | MAT + ACL 20% | ||
| Stone et al. [48] | 119 | 5.8 years (0.2–12.3) | Removal of the allograft without revision, removal and new MAT, or KA | 20.1% |
| Stone et al. [49] | 49 | 8.6 years (2–15) | KA, removal of MAT, pain greater than pre-operatively, or constant moderate pain with no relief from non-operative treatment | 22.4% |
| Van der Wal et al. [53] | 63 | 13.8 years (SD 2.8) | Persistent pain, unsuccessful KASS, poor Lysholm score, detached allograft (2002); removal of MAT, UKA or TKA (2009) | 29% |
| Van der Straeten et al. [52] | 329 | 6.8 (0.2–24.3) | Removal of MAT, KA | 27.4% |
| 19% to KR | ||||
| Verdonk et al. [54] | 100 | 7.2 years (0.5–14.5) | HSS pain subscore < 30, HSS function score < 80, KR | Medial 28%, lateral 16% |
HSS Hospital for special surgery, KASS knee assessment scoring system, TKA total knee arthroplasty, UKA unicompartmental knee arthroplasty, ND no chondral defect, FTD full thickness chondral defect