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Table 3 Meta-analysis of quadriceps-sparing (QS) versus standard parapatellar (SP) approach

From: Comparison of the quadriceps-sparing and subvastus approaches versus the standard parapatellar approach in total knee arthroplasty: a meta-analysis of randomized controlled trials

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 I2 = 0 %
KSS 3 months 2 138 138 2.88 [1.17, 4.60]; p = 0.001 I2 = 0 %
KSS 2 year 2 155 155 1.75 [0.45, 3.06]; p = 0.008 I2 = 0 %
VAS 1 weeks 4 124 129 −0.69 [−1.10, −0.29]; p < 0.05 I2 = 32 %
VAS 4–6 weeks 3 104 110 0.14 [−0.29, 0.58]; p = 0.52 I2 = 0 %
Total Complication 6 279 287 1.00 [0.21, 4.72]; p = 0.49 I2 = 0 %
Wound infection 6 279 287 1.05 [0.39, 2.85]; p = 0.85 I2 = 0 %
Deep vein thrombosis 6 279 287 0.67 [0.16, 2.92]; p = 0.30 I2 = 0 %
ROM 1 week 2 64 70 5.79 [−6.26, 17.85]; p = 0.35 I2 = 89 %
ROM 4–6 weeks 3 99 105 3.83 [−2.81, 10.46]; p = 0.26 I2 = 84 %
ROM 3 months 2 146 153 4.37 [−6.41, 15.14]; p = 0.43 I2 = 96 %
ROM 12 months 2 66 76 10.08 [−7.56, 27.72]; p = 0.26 I2 = 96 %
ROM 24 months 4 233 235 −0.18 [−1.91, 1.56]; p = 0.84 I2 = 0 %
Operative time 7 319 327 18.22 [9.92, 26.51]; p < 0.05 I2 = 93 %
Blood loss 4 220 222 0.80 [−39.34, 40.93]; p = 0.97 I2 = 0 %
Hospital stay 4 215 217 −0.68 [−1.48, 0.12]; p = 0.10 I2 = 82 %
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