Table 1.

Risk of osteoarthritis after meniscectomy

	OA after meniscectomy	OA no meniscectomy	Relative risks
Duration of follow-up
10–19 years
Allen et al. [5]	18%	5%	3.6
Jackson et al. [20]	23%	4%	5.8
20–29 years
Jackson et al.	53%	13%	4.1
40 years
Pengas et al. [36]	87%	16%	4.8
>10 years
Claes et al. [12]	50	16	3.1