[DOES KYPHOPLASTY AFFECT THE SIZE OF THE VERTEBRAL BODY?]

Thoracolumbar compression fractures are common among the osteoporotic aging population, and a commonly accepted surgical treatment is kyphoplasty.

Our study aims to demonstrate the change in the known radiologic evaluation methods before and after the surgery.

A retrospective study, 54 patients with compression A1 fractures were included and evaluated for demographic data. Two observers independently collected data from preoperative, intra-operative, and postoperative lateral and AP radiographs. The collected data included middle vertebral height - MVH/U/D, percentage of middle height compression (PMHC), posterior vertebral height (PVH), anterior vertebral height (AVH), the width of the vertebra, calculated kyphotic angle (CKA), Kobb's and kyphotic angle.

Mean age 71.3 years (11.53 SD), mean comorbidity score was 3.65 (2.0 SD), 80% were females (32), most frequent fractures were L1 and T12 (32% and 22%). Good inter-observer results were obtained in all the measurements between the two observers; 37.5 % of cases showed leakage in the postoperative films. There is a significant difference between before and after (M = 84.8, SD = 18.7), p < .001, the operation in the PMHC measurement.

Our study demonstrated significant improvements in many parameters, wWith great improvement in the PMHC ratio from 65% to 84%. Further studies with a greater sample of patients and patient-reported outcomes measures (PROMs) are needed to define the success of the surgery.