Table 2.

Details of CMI Surgical Failures ^a

Patient Characteristics							Failure
Patient	Age at Surgery, y	Sex	Laterality	Time from Meniscectomy	Intraoperative Cartilage Injury, n	Associated Procedures	Type of Failure	Cause of Failure	Timing of Failure
1	42.8	M	Lateral	15 y	3	Microfracture	CMI removal	Infection	2 mo
2	44.5	F	Lateral	0 (acute)	0	No	CMI removal	Infection	2 mo
3	43.3	F	Lateral	1 y	1	DFO	CMI removal	Scaffold fragmentation	3 mo
4	36.1	M	Lateral	14 y	3	Medial meniscal suture	MAT	Scaffold removal	2 y
5	53.3	M	Lateral	12 y	3	No	MAT	Increasing pain	2.5 y
6	33.9	M	Lateral	10 y	4	Microfracture + ACI	UKA	OA progression	13 y
7	52.7	F	Lateral	6 y	4	Microfracture	TKA	OA progression	2 y
8	40.0	M	Medial	10 y	3	HTO + cartilage scaffold	CMI removal	Infection	2 mo
9	47.2	M	Medial	25 y	3	HTO + revision ACL	MAT	Scaffold removal	6 mo
10	37.3	M	Medial	18 y	3	Revision ACL	MAT	Scaffold removal	1 y
11	43.8	F	Medial	27 y	3	ACL reconstruction	MAT	Scaffold removal	4 y
12	61.4	M	Medial	0 (acute)	3	No	UKA	Symptomatic OA	1 y
13	50.4	M	Medial	5 y	3	HTO	UKA	Symptomatic OA	6 y
14	34.1	M	Medial	5 y	4	Mosaicplasty	UKA	Symptomatic OA	7 y
15	39.4	M	Medial	9 y	3	No	UKA	Symptomatic OA	7 y
16	51.9	M	Medial	8 y	4	Microfracture	UKA	Symptomatic OA	9 y
17	33.2	M	Medial	14 y	4	Microfracture	TKA	Symptomatic OA	5 y
18	35.3	M	Medial	14 y	4	Microfracture + revision ACL	TKA	Symptomatic OA	9 y
19	51.4	M	Medial	10 y	3	No	TKA	Symptomatic OA	13 y

^aACI, autologous chondrocyte implantation; ACL, anterior cruciate ligament; CMI, collagen meniscal implant; DFO, distal femoral osteotomy; F, female; HTO, high tibial osteotomy; M, male; MAT, meniscal allograft transplant; OA, osteoarthritis; TKA, total knee arthroplasty; UKA, unicompartmental knee arthroplasty.