Skip to main content

Table 3 Primary outcomes of meta-analysis results

From: Quadriceps-sparing versus traditional medial parapatellar approaches for total knee arthroplasty: a meta-analysis

Outcomes of Demographics Number of Contributing Studies Number of QS TKAs Number of MP TKAs WMD or OR (95% CI) P - Value Heterogeneity
KS Knee Score beyond 24 months 4 330 329 -0.02 (− 0.69, 0.65) 0.95 0%
KS Function Score beyond 24 months 3 186 185 1.78 (0.80, 2.76) 0.0004 0%
ROM beyond 16 months 6 400 404 0.08 (−1.40, 1.57) 0.91 4%
Complications 10 464 430 0.87 (0.49, 1.54) 0.63 9%
Infections 10 503 515 1.53 (0.69, 3.39) 0.29 0%
Mechanical axis outliers 5 257 266 1.05 (0.65, 1.72) 0.83 27%
Femoral component coronal angle outliers 4 237 235 2.30 (0.35, 15.24) 0.39 65%
Tibial component coronal angle outliers 5 337 280 0.73 (0.40, 1.33) 0.30 40%
Mechanical axis 5 149 147 0.35 (−0.02, 0.73) 0.07 0%
Femoral component coronal angle 6 395 395 0.23 (− 0.90, 1.35) 0.69 92%
Tibial component coronal angle 7 495 445 -0.40 (−1.29, 0.49) 0.38 92%
Lateral patellar tilt 5 418 363 -1.25 (−3.36, 0.85) 0.24 78%
Lateral patellar displacement 2 131 75 -1.47 (−4.59, 1.66) 0.36 90%
  1. TKA total knee arthroplasty, BMI body mass index, QS quadriceps-sparing, MP medial parapatellar, WMD weighted mean difference, OR odds ratio, CI confidence interval, KS knee society, ROM range of motion