Table 3.
The GRADE evidence quality
| Quality assessment | No. of patients | Effect | Quality | Importance | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. of studies | Design | Limitations | Inconsistency | Indirectness | Imprecision | Cementless groups | Cemented groups | |||
| Functional recovery | ||||||||||
| 6 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 229 | 255 | WMD − 0.239; 95% CI − 2.154 to − 1.676 | High | Critical |
| Range of motion | ||||||||||
| 4 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 201 | 199 | WMD − 5.284; 95% CI − 9.430 to − 1.139 | High | Critical |
| Pain score | ||||||||||
| 4 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 140 | 141 | WMD − 3.029; 95% CI − 5.119 to − 0.939 | High | Critical |
| Radiological outcomes | ||||||||||
| 6 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 229 | 255 | RD 0.058; 95% CI 0.004 to 0.111 | High | Critical |
| Aseptic loosening | ||||||||||
| 5 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 194 | 221 | RD − 0.001; 95% CI − 0.030 to 0.028 | High | Critical |
| Postoperative complications | ||||||||||
| 6 | RCT | No serious limitations | No serious inconsistency | No serious indirectness | No serious limitations | 229 | 255 | RD 0.007; 95% CI − 0.019 to 0.033 | High | Critical |