. 2015 Oct 31;16:327. doi: 10.1186/s12891-015-0783-z

Table 3.

Meta-analysis of quadriceps-sparing (QS) versus standard parapatellar (SP) approach

Outcomes	Studies	No. of TKAs (QS/SP)		MD or OR (95 % CI); p value	Heterogeneity
KSS 4–6 weeks	3	101	108	−0.91 [−3.08, 1.25]; p = 0.41	I ² = 0 %
KSS 3 months	2	138	138	2.88 [1.17, 4.60]; p = 0.001	I ² = 0 %
KSS 2 year	2	155	155	1.75 [0.45, 3.06]; p = 0.008	I ² = 0 %
VAS 1 weeks	4	124	129	−0.69 [−1.10, −0.29]; p < 0.05	I ² = 32 %
VAS 4–6 weeks	3	104	110	0.14 [−0.29, 0.58]; p = 0.52	I ² = 0 %
Total Complication	6	279	287	1.00 [0.21, 4.72]; p = 0.49	I ² = 0 %
Wound infection	6	279	287	1.05 [0.39, 2.85]; p = 0.85	I ² = 0 %
Deep vein thrombosis	6	279	287	0.67 [0.16, 2.92]; p = 0.30	I ² = 0 %
ROM 1 week	2	64	70	5.79 [−6.26, 17.85]; p = 0.35	I ² = 89 %
ROM 4–6 weeks	3	99	105	3.83 [−2.81, 10.46]; p = 0.26	I ² = 84 %
ROM 3 months	2	146	153	4.37 [−6.41, 15.14]; p = 0.43	I ² = 96 %
ROM 12 months	2	66	76	10.08 [−7.56, 27.72]; p = 0.26	I ² = 96 %
ROM 24 months	4	233	235	−0.18 [−1.91, 1.56]; p = 0.84	I ² = 0 %
Operative time	7	319	327	18.22 [9.92, 26.51]; p < 0.05	I ² = 93 %
Blood loss	4	220	222	0.80 [−39.34, 40.93]; p = 0.97	I ² = 0 %
Hospital stay	4	215	217	−0.68 [−1.48, 0.12]; p = 0.10	I ² = 82 %