• Nan-Ning Lv, Ming-Zhuang Hou, Zhang-Zhe Zhou, Xiao-Xiao Feng, Hao-Jun Liu, Fa-Rong Shan, Er-Hu Li, Bing-Yu Guan, Shuang-Jun He, and Ming-Ming Liu.
• Department of Orthopedic Surgery, Lianyungang Second People's Hospital Affiliated to Bengbu Medical College, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu, China; Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
• World Neurosurg. 2022 Apr 1; 160: e430-e435.

ObjectiveTo study the relationship between distribution of bone cement and intravertebral cleft of patients with Kummell disease on the clinical effect of percutaneous kyphoplasty (PKP).MethodsAccording to the relationship between the distribution of bone cement and the cleft in the vertebrae, a total of 92 patients with Kummell disease who underwent PKP in our hospital were divided into 2 groups. Specifically, the bone cement of patients in group A was localized in the cleft of the vertebrae and did not infiltrate around the cleft, while that of group B patients not only filled the cleft of the vertebrae, but also distributed diffusely around the cleft of the vertebrae. The amount of bone cement injected, leakage rate, visual analogue scale (VAS) score, Oswestry Disability Index (ODI), and vertebral imaging changes before operation, and 2 days and 1 year after operation were compared between the 2 groups.ResultsThe amount of bone cement injected and the permeability of bone cement in group B were higher than those in group A (P < 0.05). The scores of VAS and ODI in both groups were significantly improved after operation, but the two scores in group B were better than those in group A one year after operation. The height of anterior vertebral body and Cobb's angle of kyphosis in the 2 groups were significantly improved after operation, but 1 year after operation, those in group B were better than those in group A.ConclusionsPKP was an effective method for treating Kummell disease. At the same time, the relationship between the distribution of bone cement and the cleft in the vertebral body was an important factor affecting the curative effect after PKP. The effect of the distribution pattern of bone cement filled with intravertebral cleft and diffusely distributed around the fissures was better than that of bone cement confined in the vertebral cleft.Copyright © 2022 The Authors. Published by Elsevier Inc. All rights reserved.

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