Table 4.

Test-retest reliability, internal consistency, and validity of the Lysholm knee scale

Lysholm knee scale	Test-retest reliability (ICC)	Interval	Cronbach’s alpha	Correlations with Lysholm knee scale and other knee scores
Tegner and Lysholm [35]	0.90	2 weeks
Bengston et al. [2]	0.75	1–3 days
	0.69	1–14 days
	0.68	3–14 days
Irrgang et al. [13]			0.60– 0.73
Risberg et al. [33]				Cincinnati 0.78–0.86
Marx et al. [22]	0.95	2–14 days		Cincinnati 0.70 AAOS 0.70 ADL 0.85
Paxton et al. [30]	0.88	21 days	0.71	Tegner 0.24 Fulkerson 0.93 Kujala 0.86
Kocher et al. [16]			0.65
				WOMAC 0.65 Tegner 0.34
Overall score	0.91
Pain	0.61
Stair climbing	0.67
Briggs et al. [3]	0.92	4 weeks	0.72
Briggs et al. [4]	0.94	4 weeks	0.72	IKDC 0.78 Tegner 0.07 Kujala 0.78
Briggs et al. [5]
Current study	0.82	3–14 days	0.68

ICC = intraclass correlation coefficient; AAOS = American Academy of Orthopaedic Surgeons; ADL = activities of daily living; IKDC = International Knee Documentation Committee.