Predictive risk factors for recollapse of cemented vertebrae after percutaneous vertebroplasty: A meta-analysis

Table 2 Summary of potential risk factors for recollapse involved in all included studies

Ref.	Publication year	Predictive factor
Lin et al[11]	2008	Age, gender, body weight and height, lumbar BMD, location of fractured vertebrae, gas-containing vertebrae, pedicle approach, cement volume, VHR
Heo et al[12]	2009	Age, gender, lumbar BMD, cement volume, vertebrae with osteonecrosis, vertebral compression rate, location of fractured vertebrae, VHR, chemotherapy history, trauma history, medical history
Lin et al[13]	2010	Age, gender, body weight and height, lumbar BMD, location of fractured vertebrae, gas-containing vertebrae, fracture type, cement volume, cement leakage, signal intensity of fractured vertebrae on magnetic resonance imaging, volume ratio of fractured vertebrae
Kang et al[14]	2011	Age, gender, body weight and height, BMI, lumbar BMD, preoperative VAS score, gas-containing vertebrae, location of fractured vertebrae, preoperative LKA, cobb angle, sagittal index, cement volume, cement leakage, cement distribution pattern, height of vertebral body
Chen et al[15]	2011	Age, gender, cement volume, location of fractured vertebrae, vertebrae with osteonecrosis, pedicle approach, cement leakage, cement distribution pattern, VHR, LKA correction
Oh et al[16]	2016	Age, gender, lumbar BMD, BMI, location of fractured vertebrae, cement volume, cement leakage, preoperative IVC
Zhang et al[17]	2017	Age, gender, lumbar BMD, cement volume, cement leakage, duration of symptoms, vertebral compression rate, VHR, dispersion of bone cement
He et al[18]	2018	Age, gender, weight and height of body, BMI, lumbar BMD, LKA correction, VHR, cement volume, pedicle approach, preoperative VAS score, cement distribution pattern
Yu et al[19]	2019	Age, gender, lumbar BMD, location of fractured vertebrae, preoperative IVC, fracture type, cement volume, cement leakage, cement distribution pattern, VHR, reduction angle, preoperative and postoperative VAS score

BMD: Bone mineral density; VHR: Vertebral height restoration; BMI: Body mass index; LKA: Local kyphotic angle; IVC: Intravertebral cleft; VAS: Visual Analogue Scale.