PAN Hong 1 , DING Shuchen 1 , ZHAO Xinhua 2 , LIN Zongyang 1 , YE Hong 1 , NI Zhiming 1 , FU Chudi 1 , XIA Junjie 1
  • 1. Center of Orthopedics, the 903th Hospital of People’s Liberation Army, Hangzhou Zhejiang, 310001, P.R.China;
  • 2. The Third Department of Orthopedics, Zhejiang Hospital, Hangzhou Zhejiang, 310001, P.R.China;
DING Shuchen, Email: hheellll@126.com
Osteoporotic vertebral compression fracture; percutaneous kyphoplasty; spinal fracture; spinal puncture
10.7507/1002-1892.202103028
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Objective To evaluate the feasibility and short-term effectiveness of bilateral percutaneous balloon kyphoplasty through unilateral transverse process-extrapedicular approach for osteoporotic vertebral compression fracture (OVCF) of lumbar.Methods A retrospective analysis was made on the clinical data of 93 patients with OVCF of lumbar who met the selection criteria between January 2018 and June 2019. According to the different surgical methods, they were divided into group A (44 cases, treated with bilateral percutaneous balloon kyphoplasty through unilateral transverse process-extrapedicular approach) and group B [49 cases, treated with percutaneous kyphoplasty (PKP) via bilateral transpedicle approach]. There was no significant difference in gender, age, body mass index, T value of bone mineral density, injury cause, fractured level, time from injury to operation, comorbidities, and preoperative Cobb angle of injured vertebra, visual analogue scale (VAS) score, and Oswestry disability index (ODI) between the two groups (P>0.05). The operation time, intraoperative fluoroscopy times, bone cement injection amount, and incidence of bone cement leakage were recorded and compared between the two groups; Cobb angle of the injured vertebrae, VAS score, and ODI were measured before operation, at 2 days and 1 year after operation. The contralateral distribution ratio of bone cement was calculated according to the anteroposterior X-ray film at 2 days after operation.Results The operation time and the intraoperative fluoroscopy times in group A were significantly less than those in group B (P<0.05). There was no bone cement adverse reactions, cardiac and cerebrovascular adverse events, and no complications such as puncture needles erroneously inserted into the spinal canal and nerve injuries occurred in the two groups. Bone cement leakage occurred in 6 cases and 8 cases in groups A and B, respectively, all of which were asymptomatic paravertebral or intervertebral leakage, and no intraspinal leakage occurred; the bone cement injection amount and incidence of bone cement leakage between the two groups showed no significant differences (P>0.05). The contralateral distribution ratio of bone cement in group A was significantly lower than that in group B (t=2.685, P=0.009). Patients in both groups were followed up 12-20 months, with an average of 15.3 months. The Cobb angle of the injured vertebrae, VAS score, and ODI in the two groups were significantly improved at 2 days after operation, however, the Cobb angle of the injured vertebra at 1 year after operation was significantly lost when compared with the 2 days after operation, the VAS score and ODI at 1 year after operation were significantly further improved when compared with the 2 days after operation, the differences were all significant (P<0.05). There was no significant difference in the Cobb angle of the injured vertebrae, VAS score, and ODI between the two groups at each time point after operation (P>0.05).Conclusion Bilateral percutaneous balloon kyphoplasty through unilateral transverse process-extrapedicular approach is comparable to bilateral PKP in short-term effectiveness with regard to fracture reduction, reduction maintenance, pain relief, and functional improvement. It has great advantages in reducing operation time and radiation exposure, although it is inferior in bone cement distribution.

Citation： PAN Hong, DING Shuchen, ZHAO Xinhua, LIN Zongyang, YE Hong, NI Zhiming, FU Chudi, XIA Junjie. Bilateral percutaneous balloon kyphoplasty through unilateral transverse process-extrapedicular approach for osteoporotic vertebral compression fracture of lumbar. Chinese Journal of Reparative and Reconstructive Surgery, 2021, 35(8): 1007-1013. doi: 10.7507/1002-1892.202103028 Copy

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