Therapeutic effect of two methods on avulsion fracture of tibial insertion of anterior cruciate ligament

Table 1 Comparison of annual group data of consumers in groups A and B, n (%)

Basic information	Group A (n = 40)	Group B (n = 38)	t/χ2 value	P value
Age (yr)	36.4 ± 8.5	38.4 ± 9.0	-1.009	0.316
Height (cm)	167.8 ± 4.6	167.2 ± 5.0	0.552	0.583
Weight (kg)	65.1 ± 6.8	67.4 ± 7.2	-1.451	0.151
Time from injury to surgery (d)	7.4 ± 2.1	6.9 ± 1.7	1.152	0.253
Sex			0.601	0.438
Male	24 (60.00)	26 (68.42)
Female	16 (40.00)	12 (31.58)
Affected side distribution			1.990	0.158
Left side	20 (50.00)	25 (65.79)
Right	20 (50.00)	13 (34.21)
Meyers-McKeever type			0.020	0.887
Type II	29 (72.50)	27 (71.05)
Type III	11 (27.50)	11 (28.95)
Tibia instability			0.690	0.406
Stage II	26 (65.00)	28 (73.68)
Stage III	14 (35.00)	10 (26.32)

Table 2 Comparison of operation time and fracture healing time between group A and group B (mean ± SD)

Groups	n	Operation time (min)	Fracture healing time (wk)
Group A	40	108.5 ± 18.4	12.5 ± 1.4
Group B	38	59.2 ± 11.7	12.8 ± 1.5
t value		14.037	-0.914
P value		0.000	0.364

Table 3 Comparison of the functional range of motion of the knee joint in group A and group B (mean ± SD, °)

Groups	n	Preoperative	3 mo after surgery	6 mo after surgery
Group A	40	76.9 ± 10.4	122.0 ± 18.5a	138.2 ± 15.7a
Group B	38	79.0 ± 9.8	119.8 ± 17.3a	134.6 ± 17.4a
t value		-0.917	0.542	0.960
P value		0.362	0.590	0.340

^aP < 0.05 vs this group before surgery.

Table 4 Comparison of knee function scores between group A and group B (mean ± SD, scores)

Project	Preoperative		t value	P value	6 months after surgery		t value	P value
	Group A (n = 40)	Group B (n = 38)			Group A (n = 40)	Group B (n = 38)
Limp	1.88 ± 0.30	1.94 ± 0.45	-0.696	0.488	3.92 ± 0.74a	4.11 ± 0.80a	-1.090	0.279
Support	1.90 ± 0.41	1.98 ± 0.48	-0.793	0.430	4.13 ± 0.68a	4.26 ± 0.88a	-0.732	0.466
Winch	5.84 ± 1.20	6.12 ± 1.32	-0.981	0.330	11.30 ± 2.57a	10.93 ± 2.83a	0.605	0.547
Unstable	12.67 ± 2.48	11.88 ± 2.27	1.465	0.147	20.38 ± 3.70a	21.03 ± 3.58a	-0.788	0.433
Swelling	4.41 ± 0.86	4.67 ± 0.90	-1.305	0.196	8.81 ± 0.89a	8.48 ± 1.03a	1.516	0.134
Go upstairs	3.36 ± 0.78	3.62 ± 0.85	-1.409	0.163	7.96 ± 1.14a	8.21 ± 1.26a	-0.920	0.361
Squat	1.67 ± 0.41	1.80 ± 0.48	-1.288	0.202	3.88 ± 1.03a	4.02 ± 0.89a	-0.641	0.524
Pain	13.52 ± 2.96	12.81 ± 2.56	1.130	0.262	20.86 ± 3.02a	21.32 ± 3.31a	-0.642	0.523
Total score	45.25 ± 7.33	44.82 ± 6.81	0.268	0.789	81.24 ± 9.25a	82.36 ± 8.90a	-0.544	0.588

^aP < 0.05 vs this group before surgery.

Table 5 Comparison of surgical complications, n (%)

Groups	n	Incision infection	Loose internal fixation	Venous thrombosis of lower extremity	Complication rate
Group A	40	0	0	1	1 (2.63)
Group B	38	2	2	3	7 (18.42)
χ2 value					5.367
P value					0.021