%0 Journal Article %A Nikouei, Farshad %A Ghandhari, Hasan %A Haghbin, Mohammadamin %A Momen, Omid %A Aghaie Aghdam, Amir %T Sagittal Alignment Following the Kyphoplasty of Acute Versus Chronic Osteoporotic Vertebral Compression Fracture %J Journal of Research in Orthopedic Science %V 6 %N 3 %U http://jros.iums.ac.ir/article-1-2068-en.html %R 10.32598/JROSJ.6.3.1 %D 2019 %K Kyphoplasty, Osteoporosis, Vertebral compression fracture, Sagittal alignment, %X Background: As a minimally invasive operation, kyphoplasty has become popular in the treatment of osteoporotic vertebral compression fracture (OVCF). Objectives: This study aimed to evaluate how the timing of kyphoplasty affects the parameters of sagittal alignment in OVCF. Methods: In this prospective study, the patients with OVCF, who underwent kyphoplasty at our center, were recruited. Pre- and post-operative vertebral height, local and total kyphosis, coronal axis, sagittal vertebral axis, pelvic tilt, lumbar lordosis, sacral slope, and spino-cranial angle were evaluated and compared between acute OVCF (kyphoplasty performed within 1 month after injury) and chronic OVCF (kyphoplasty performed after 1 month from injury) patients.‎ Results: Kyphoplasty was done for 18 acute and 28 chronic OVCF patients. All of the evaluated parameters, except spino-cranial angle, were significantly improved after the kyphoplasty. A significant difference was observed between the mean lumbar lordosis improvement of the two groups (P=0.026). In particular, the Mean±SD lumbar lordosis improved 6.1±6.6º in the acute patients and 0.92±7.86º in the chronic group. No other significant difference was observed between the improvement of the spinopelvic parameters in the two groups. Conclusion: The timing of kyphoplasty impacts the improvement of spinopelvic parameters, ‎as well as the reduction of pain and restoration of vertebral height. %> http://jros.iums.ac.ir/article-1-2068-en.pdf %P 1-6 %& 1 %! %9 %L A-10-41-67 %+ Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran. %G eng %@ 2676-7031 %[ 2019