The relationship between lateral meniscus shape and joint contact parameters in the knee: a study using data from the Osteoarthritis Initiative

Table 2 Change rates of quantitative measurements

	∆Cov_Area	∆Cov_Pct	∆PH_Wid	∆AH_Wid	∆PA_Dis	∆PH_Len	∆AH_Len	∆LPH_Thic	∆LPH_Wid	∆RDL	∆Con_Area	∆Tcon_Area	Significant feature
	(%)	(%)	(%)	(%)	(%)	(%)	(%)	(%)	(%)	(%)	(%)	(%)
1^st PMV	54.2	-13.1	3.4	5.7	15.5	42.0	35.1	10.2	16.3	-22.2	56.7	50.9	Size
2^nd PMV	38.3	9.1	28.0	32.3	-9.2	22.0	22.6	4.8	3.9	-12.3	35.9	37.6	Horn Lengths
3^rd PMV	18.7	-14.5	25.8	36.6	33.6	-11.4	-14.4	12.6	1.4	51.7	17.7	18.7	Horn openness
4^th PMV	3.2	-8.6	-31.6	8.1	-2.71	17.4	-2.1	4.3	7.4	9.6	6.9	-3.2	Assemetry
5^th PMV	31.2	12.6	36.9	41.0	-10.5	6.5	4.7	61.9	47.2	15.4	8.1	31.2	Horn widths
6^th PMV	7.05	2.1	15.1	30.9	4.1	-10.3	-4.8	13.5	9.3	11.0	7.2	4.5	Horn thickness

Quantitative measurements include: posterior horn width (PH_Wid), anterior horn width (AH_Wid), posterior horn length (PH_ Len), anterior horn length (AH_ Len), posterior horn to anterior horn distance (PA_Dis), lateral peripheral horn thickness (LPH_Thic), lateral peripheral horn width (LPH_Wid), cover area (Cov_Area), and coverage percentage (Cov_Pct) on tibial plateau, ratio of the distance between horns to the horn length (RDL), contact area (Con_Area) with the femur, and total contact area (Tcon_Area), which sums the contact area with the femur and the area of exposed cartilage. The 1^st and 3^rd PMVs were found to correlate with height, weight, femoral condyle width, and body mass index.

ISSN: 1478-6362