Table 4.

Univariate analysis of factors influencing treatment efficacy

	Effective (n = 45)	Ineffective (n = 15)	χ2/t	P
Age (years, x̅±s)	35.91±5.79	32.80±5.39	1.832	0.072
Gender [n (%)]			0.556	0.456
Male	22 (48.89)	9 (60.00)
Female	23 (51.11)	6 (40.00)
BMI (kg/m2, x̅±s)	23.25±2.02	23.02±2.32	0.316	0.753
Underlying disease [n (%)]
Hypertension	30 (66.67)	9 (60.0)	0.220	0.639
Diabetes	17 (37.78)	3 (20.00)	1.600	0.206
Injury area [n (%)]			1.600	0.206
Red and white area	17 (37.78)	3 (20.00)
White area	28 (62.22)	12 (80.00)
Nature of injury [n (%)]			0.571	0.450
Acute	25 (62.50)	10 (66.67)
Chronic	20 (44.44)	5 (33.33)
Injury side [n (%)]			0.090	0.764
Left knee	25 (62.50)	9 (60.00)
Right knee	20 (44.44)	6 (40.00)
Operation time (min, x̅±s)	41.71±5.48	45.00±2.78	2.224	0.030
Blood loss (mL, x̅±s)	19.00±2.59	20.47±2.39	1.933	0.058
Length of hospital stay (day, x̅±s)	7.09±1.78	6.93±1.98	0.285	0.777
IKDC score (x̅±s)
Before the surgery	41.02±4.66	40.60±5.19	0.295	0.769
6 months after the surgery	84.00±8.24	76.67±8.42	2.970	0.004
Lysholm score (x̅±s)
Before the surgery	45.49±7.90	48.93±6.53	1.522	0.133
6 months after the surgery	82.82±8.20	76.33±10.07	2.505	0.015
Tegner score (x̅±s)
Before the surgery	3.33±1.02	3.00±1.07	1.081	0.284
6 months after the surgery	7.82±1.25	7.80±1.08	0.062	0.951
VAS score [M (Q25, Q75)]
Before the surgery	6 (5, 8)	8 (4, 9)	0.578	0.563
30 days after the surgery	2 (1, 3)	2 (1, 2)	0.667	0.505
Development of complications [n (%)]			13.067	<0.001
Yes	6 (13.33)	9 (60.00)
No	39 (86.67)	6 (40.00)
Suturing way [n (%)]			4.356	0.037
All-inside suture	26 (57.78)	4 (26.67)
Outside-in suture	19 (42.22)	11 (73.33)

Note: BMI: body mass index; IKDC: international knee documentation committee.