Table 3. Meta-analysis of nini-midvastus versus medial parapatellar approach.

Results	TKAs		Included studies	MD or OR (95% CI); p value	Heterogeneity
	MV	MP
KSS 6 weeks	168	168	5 [11], [15], [20], [26], [29]	5.15 (−3.36, 13.66); p = 0.24	I2 = 89%
KSS 3 months	168	168	5 [11], [15], [20], [26], [29]	0.55 (−1.41, 2.50); p = 0.59	I2 = 0%
KSS 6 months	73	73	2 [11], [20]	−2.15 (−5.92, 1.62); p = 0.26	I2 = 30%
KSS 1 year	103	103	3 [11], [19], [20]	0.66 (−0.68, 1.99); p = 0.33	I2 = 26%
VAS 3 days	91	91	3 [22], [23], [27]	−0.27 (−0.91, 0.37); p = 0.42	I2 = 80%
VAS 1–2 weeks	91	91	3 [22], [23], [27]	−0.20 (−0.29, 0.11); p<0.01	I2 = 0%
VAS 6 weeks	87	87	3 [19], [22], [23]	−0.12 (−0.32, 0.07); p = 0.22	I2 = 0%
VAS 3 months	87	87	3 [19], [22], [23]	−0.02 (−0.21, 017); p = 0.82	I2 = 0%
VAS 6 months	86	96	3 [19], [22], [24]	−0.02 (−0.20, 015); p = 0.80	I2 = 0%
ROM 1–2 week	146	145	5 [22], [23], [25]–[27]	7.45 (3.26, 11.64); p<0.05	I2 = 26%
ROM 6 weeks	272	268	8 [15], [20], [22], [23], [26], [27], [33], [34]	2.12 (−2.42, 6.66); p = 0.36	I2 = 86%
ROM 3 months	151	151	5 [15], [20], [22], [23], [27]	0.72 (−1.20, 2.65); p = 0.46	I2 = 0%
ROM 6 months	66	76	2 [20], [24]	1.03 (−1.77, 3.83); p = 0.47	I2 = 0%
Operative time	255	264	8 [14], [19], [22], [24]–[27], [30]	11.64(5.50, 17.78); p<0.05	I2 = 93%
Lateral retinacular release	329	318	7 [13], [15], [20], [27], [28]	0.67 (0.41, 1.11); p = 0.12	I2 = 0%
Blood loss	268	266	8 [5], [11], [13], [19], [22], [25], [29], [30]	1.73 (−1.79, 5.25); p = 0.33	I2 = 0%
Straight leg raise	144	137	4 [13], [27], [28], [34]	0.43 (0.15, 1.27); p = 0.13	I2 = 0%
Hospital stay	141	144	5 [20], [24], [25], [28], [30]	1.46(−9.03, 11.94); p = 0.79	I2 = 53%
Total Complication	405	413	12 [5], [11], [13], [14], [19], [22]–[25], [27], [29], [30]	0.95 (0.53, 1.71); p = 0.88	I2 = 0%
Wound infection	430	432	13 [5], [11], [13], [14], [19], [22]–[25], [27]–[30]	1.22(0.52, 2.90); p = 0.64	I2 = 0%
Deep vein thrombosis	254	253	7 [5], [11], [14], [23], [27], [29], [30]	0.46 (0.13, 1.59); p = 0.22	I2 = 0%