“…Data on recurrence and follow-up times pertaining to 3,207 patients treated for PSD by other flap techniques were extracted from 55 additional non-RCTs 4 , 108 , 109 , 115 , 129 , 132 , 133 , 137 , 143 , 163 , 170 , 171 , 177 , 188 , 190 , 193 , 200 , 204 , 215 , 218 , 224 , 230 , 245 , 272 , 279 , 294 , 303 , 313 , 315 , 317 , 318 , 336 , 352 , 358 , 363 , 369 , 593 , 605 – 622 . Among these patients, a recurrence of 1.8% (95% CI 1.2–2.3%) was observed in patients at 12 months, 5.6% (95% CI 4.5–6.7%) at 24 months, 9.4% (95% CI 7.6–11.1%) at 60 months, and 16.3% (95% CI 11.8–20.9%) at 120 months (Supplementary Fig.…”