Study on the morphological characteristics and rotational alignment axis of placement plane of the tibial component in total knee arthroplasty for hemophilia-related knee arthritis

Table 1 Demographic data of the HA and OA groups

Patient demographics	HA group (40 knees)	OA group (42 knees)	P
Age (years)ª	32.48 ± 10.25	62.31 ± 11.34	0.001
Height^a (cm)	172.09 ± 2.05	170.87 ± 6.66	0.271
BMIª	23.79 ± 2.82	24.03 ± 3.80	0.747
KL grade			0.241
	KL grade 4 (40 knees)	KL grade 3(3 knees)
		KL grade 4 (39 knees)
Side (Lt/Rt)			0.991
	Lt: 21 knees	Lt: 22 knees
	Rt: 19 knees	Rt: 20 knees
Deformity angle^a (°)
Varus	3.36 ± 2.17 (17 knees)	11.23 ± 5.90 (35 knees)	0.001
Valgus	7.50 ± 6.42 (23 knees)	7.14 ± 6.09 (7 knees)	0.897

BMI: Body Mass Index, HA: Hemophiliac Arthritis, KL: Kellgren-Lawrence, Lt: left, OA: Osteoarthritis, Rt: right
^aThe value is given as the mean ± SD

ISSN: 1749-799X