Table 6 Preoperative and postoperative imaging outcomes of each group after excluding the results of the follow-up within 1 year
Categories and comparison | Studies | Mean difference | P value | Heterogeneity | ||
|---|---|---|---|---|---|---|
Mean | (95% CI) | I2 (%) | P value | |||
Preoperative VS postoperative results in CWHTO | ||||||
Radiological outcomes RCT | ||||||
 HKA | 10,24,27,30 | − 3.24 | (− 3.64 to − 2.86) | 0.001 | 82.7 | 0.003 |
 PTSA(AX) | 24 | 0.52 | (0.008 to 1.04) | 0.046 | NA | NA |
 ISI | 31 | − 0.06 | (− 0.63 to 0.51) | 0.84 | NA | NA |
Radiological outcomes nRCT | ||||||
 PTSA (PC) | 12 | 0.92 | (0.54 to 1.29) | 0.003 | NA | NA |
 CDI | 42 | − 0.21 | (− 0.61 to 0.19) | 0.31 | NA | NA |
Preoperative VS postoperative results in OWHTO | ||||||
Radiological outcomes RCT | ||||||
 HKA | 10,24,27,30 | − 3.02 | (− 3.42 to − 2.63) | 0.001 | 92.8 | 0.001 |
 PTSA (AX) | 24 | − 0.67 | (− 1.18 to − 0.15) | 0.012 | NA | NA |
 ISI | 31 | 0.48 | (0.06 to 0.64) | 0.06 | NA | NA |
Radiological outcomes nRCT | ||||||
 PTSA (PC) | 12 | − 0.58 | (− 0.94 to − 0.21) | 0.002 | NA | NA |
 CDI | 42 | 0.50 | (0.06 to 0.95) | 0.026 | NA | NA |