The Pathophysiology of Primary Hip Osteoarthritis may Originate from Bone Alterations

Table 1: Parameters Determined in the 8 Patients with Primary Hip OA

Case	Age	Gender	Affected Hip	KL Grading at First Visit	KL Grading After 3 to 6 Months of Onset	MRI	Pain at Onset	Pain at the Latest Examination	Height	Weight	BMI	BMD (L1-4)	T-Score	CE Angle	Sharp's Angle	AHI
1	62	F	Right	0	I	Femoral-subtrochanteric broad region	P4	P0	155.5	68	28.1	1.035	-0.6	27	35	88.2
2	67	F	Right	0	I	Local region in the right femoral head	P4	P1	166	57	20.7	1.027	-0.7	17	40	71.4
3	71	F	Left	0	I	Local region in the femoral head	P4	P1	155	62	25.8	0.868	-2.1	29	37	95.6
4	63	F	Left	I	II	Femoral-trochanteric broad region	P4	P1	147.2	46	21.2	0.926	-1.6	29	44	81.2
5	71	F	Right	I	II	Local region in the femoral head	P4	P1	149	49	22.1	0.942	-1.4	25	39	85.1
6	87	M	Right	Perthes-like deformity: I	Perthes-like deformity: III	Femoral-subtrochanteric broad region	P5	P3	145	42	20	0.986	-1.7	28	40	77.5
7	68	F	Right	I	II	Femoral-trochanteric broad region	P4	P1	153	54	23	0.839	-2.3	27	43	80
Average	70.2								153	51.2	22	0.95	-1.5	27.1	39.7	83

KL grading: Kellgren-Lawrence grading; JS: joint space; CE: Wiberg’s center-edge; AHI: acetabular head index; BMI: body mass index; BMD: bone mineral density.