Study of surgical indication for knee arthroplasty by cartilage analysis in three compartments using data from Osteoarthritis Initiative (OAI)

Table 2 Optimal operative indications for knee arthroplasty in subjects with G5+G6 (greater than 50% + full thickness) cartilage defect

M+L+PF		TKA
M+L		TKA
M+PF	(+) lateral factors or ligamentous injury	TKA
M+PF	No lateral factors and no ligamentous injury	BKA
L+PF	(+) medial factors or ligamentous injury	TKA
L+PF	No medial factors and no ligamentous injury	BKA
M	(+) lateral factors or ligamentous injury	TKA
	No lateral factors and no ligamentous injury
	(+) PF factors	BKA
	(−) PF factors	UKA
L	(+) medial factors or ligamentous injury	TKA
	No medial factors and no ligamentous injury	TKA
	(+) PF factors	BKA
	(−) PF factors	UKA
PF	(+) medial and lateral factors	TKA
	(+) medial or lateral factors w/ ligamentous injury	TKA
	(+) medial or lateral factors w/o ligamentous injury	BKA
	No medial and lateral factors	non-operation

TKA total knee arthroplasty, BKA bicompartmental knee arthroplasty, UKA unicompartmental knee arthroplasty, G grade, M medial femorotibial compartment, L lateral femorotibial compartment, and PF patellofemoral compartment.

ISSN: 1471-2474