Chan CYW, et al. - Investigators examined 374 candidates to estimate the perioperative consequence of posterior spinal fusion (PSF) between overweight (OW) adolescent idiopathic scoliosis (AIS) cases and subjects with healthy-weight (HW). They noticed that most of the cases were Lenke 1 curves; 32.6% (HW) and 26.1% (OW) with an average Cobb angle of 69.0 ± 19.1° and 68.8 ± 18.4° for every group, respectively. They recorded 145.2 ± 42.2 and 154.4 ± 48.3 minutes, the operation time for HW and OW groups, respectively. They noted comparable intraoperative blood loss in both groups ie, 955.1 ± 497.7 mL (HW group) and 1011.8 ± 552.7 mL (OW group). Higher levels of total patient-controlled analgesia (PCA) morphine use were found in OW group (30.4 ± 22.7 mg) when compared with the HW group (16.2 ± 11.3 mg).