Patients with Kashin-Beck Disease Obtained Lower Functional Activities but Better Satisfaction Than Patients with Osteoarthritis After Total Knee Arthroplasty: A Retrospective Study

Figures & data

Table 1 Demographic Characteristics of Patients

	KBD	OA	P-value
No. of patients	45	58	-
Age (y)	62.27±7.41	64.86±7.76	0.089
Gender (male %)	29.31	24.44	0.582
BMI (kg/m^2)	23.89±2.61	24.63±2.32	0.134
Follow-up (months)	44.18±7.58	42.84±6.59	0.343

Table 2 Preoperative and Postoperative Variables for ROM, KSKS, KSFS, and WOMAC

		KBD	OA	P-value
ROM	Pre-op	81.00±28.13	92.16±23.72	0.031^#
	Final follow-up	110.33±10.36*	111.98±9.46*	0.402
KSKS	Pre-op	12.31±11.45	21.41±16.31	0.002^#
	Final follow-up	93.38±3.97*	94.60±3.95*	0.123
KSFS	Pre-op	39.11±17.46	42.15±15.48	0.352
	Final follow-up	85.11±11.79*	89.74±10.45*	0.067
WOMAC	Pre-op	44.78±11.84	44.14±11.86	0.786
	Final follow-up	5.16±3.95*	3.33±3.62*	0.074

Notes: *There is significant difference between pre-operation and final follow-up (P < 0.05). ^#There is significant difference between KBD and OA (P < 0.05).

Table 3 Postoperative Variables for Satisfaction and Function

	KBD	OA	T	P-value
Satisfaction	34.09±5.75	29.90±7.21	3.190	0.002*
KSKS	93.38±3.97	94.60±3.95	−1.557	0.123
KSFS	85.11±11.79	89.74±10.45	−2.108	0.037*
WOMAC Total	5.16±3.95	3.33±3.62	2.443	0.016*
WOMAC Pain	0.98±0.89	0.60±0.75	2.316	0.023*
WOMAC Stiffness	0.67±0.74	0.24±0.51	3.462	0.001*
WOMAC Function	3.69±2.85	1.48±1.79	4.802	<0.001*

Note: *There is significant difference between KBD and OA (P < 0.05).

Table 4 Radiographic Outcomes

		KBD	OA	P-value
HKA	Pre-op	172.81±8.14	174.36±7.43	0.316
	Final follow-up	179.07±1.34*	178.35±2.72*	0.106
mLDFA	Pre-op	92.16±2.60	90.85±2.12	0.006^#
	Final follow-up	88.45±1.67*	88.85±1.10*	0.149
mMPTA	Pre-op	82.87±2.43	83.46±3.05	0.295
	Final follow-up	88.06±1.79*	87.52±1.88*	0.142

Notes: *There is significant difference between pre-operation and final follow-up (P < 0.05). ^#There is significant difference between KBD and OA (P < 0.05).