Risk factors for cement displacement after percutaneous vertebral augmentation for osteoporotic vertebral compression fracture / 中华创伤杂志

Objective:To explore the risk factors of cement displacement after percutaneous vertebral augmentation in patients with osteoporotic vertebral compression fracture (OVCF).Methods:A case-control analysis was made on clinical data of 1 538 patients with OVCF admitted to Honghui Hospital Affiliated to Xi′an Jiaotong University from January 2016 to June 2021. There were 377 males and 1 161 females, aged from 45-115 years [(71.7±10.8)years]. Percutaneous vertebroplasty (PVP) or percutaneous vertebroplasty (PKP) was performed. Patients were divided into cement displacement group ( n=78) and cement non-displacement group ( n=1 460) according to the radiographic outcomes. Factors related to cement displacement were analyzed by univariate analysis, including age, gender, body mass index (BMI), preoperative bone mineral density, underlying diseases, involved vertebral segments, surgical methods, surgical approaches, cement leakage (anterior edge), viscosity of cement, dispersion ratio of cement, degree of cement interweaving, sagittal position of cement, targeted location of cement, distance from cement to upper and lower endplates and duration of brace wearing. Independent risk factors for bone cement displacement were identified by multivariate Logistic regression analysis. Results:Univariate analysis showed that bone cement displacement was significantly correlated with BMI, preoperative bone mineral density, involved vertebral segments, operation methods, cement leakage (anterior edge), viscosity of cement, dispersion ratio of cement, degree of cement interweaving, sagittal position of cement, targeted location of cement, distance from cement to upper and lower endplates and duration of brace wearing (all P<0.05), but there was no correlation with gender, age, underlying diseases or surgicales approach (all P>0.05). Multivariate Logistic analysis showed that the preoperative bone mineral density ( OR=2.45, 95% CI 1.81-7.50, P<0.01), operation methods ( OR=4.56, 95% CI 1.86-8.44, P<0.01), cement leakage (anterior edge) ( OR=5.77, 95% CI 2.85-9.20, P<0.01), viscosity of cement ( OR=7.36, 95% CI 1.01-1.77, P<0.01), dispersion ratio of cement ( OR=6.84, 95% CI 1.69-13.39, P<0.01), degree of cement interweaving ( OR=8.97, 95% CI 2.29- 14.97, P<0.01), sagittal position of cement ( OR=6.39, 95% CI 1.06-9.47, P<0.01), targeted location of cement ( OR=7.93, 95% CI 1.64-11.84, P<0.01), distance from cement to upper and lower endplates ( OR=6.78, 95% CI 1.84-6.96, P<0.01) and duration of brace wearing ( OR=9.55, 95% CI 2.26- 9.38, P<0.01) were significantly correlated with bone cement displacement after percutaneous vertebral augmentation. Conclusion:Low bone mineral density preoperatively, PKP, cement leakage into the vertebral anterior edge, low viscosity of cement, small dispersion ratio of cement, small degree of cement interweaving, cement filling in the anterior 1/3 and anterior middle 2/3 of the vertebral body in sagittal plane, non-targeted injection of cement, long distance from cement to upper and lower endplates and short duration of brace wearing are independent risk factors of cement displacement after percutaneous vertebral augmentation for OVCF.

Guideline for postoperative rehabilitation treatment following vertebral augmentation for osteoporotic vertebral compression fracture (version 2022) / 中华创伤杂志

Osteoporotic vertebral compression fracture (OVCF) can lead to lower back pain and may be even accompanied by scoliosis, neurological dysfunction and other complications, which will affect the daily activities and life quality of patients. Vertebral augmentation is an effective treatment method for OVCF, but it cannot correct unbalance of bone metabolism or improve the osteoporotic status, causing complications like lower back pain, limited spinal activities and vertebral refracture. The post-operative systematic and standardized rehabilitation treatments can improve curative effect and therapeutic efficacy of anti-osteoporosis, reduce risk of vertebral refracture, increase patient compliance and improve quality of life. Since there still lack relevant clinical treatment guidelines for postoperative rehabilitation treatments following vertebral augmentation for OVCF, the current treatments are varied with uneven therapeutic effect. In order to standardize the postoperative rehabilitation treatment, the Spine Trauma Group of the Orthopedic Branch of Chinese Medical Doctor Association organized relevant experts to refer to relevant literature and develop the "Guideline for postoperative rehabilitation treatment following vertebral augmentation for osteoporotic vertebral compression fracture (2022 version)" based on the clinical guidelines published by the American Academy of Orthopedic Surgeons (AAOS) as well as on the principles of scientificity, practicality and advancement. The guideline provided evidence-based recommendations on 10 important issues related to postoperative rehabilitation treatments of OVCF.

Unilateral approach painless vertebroplasty for osteoporotic vertebral compression fractures of critically ill patients under lateral decubitus position / 中华创伤杂志

Objective To investigate the clinical efficacy of unilateral approach painless vertebral augmentation in the treatment of severe osteoporotic vertebral compression fractures ( OVCFs) in the critically ill patients under lateral decubitus postition. Methods A retrospective case series study was conducted to analyze 97 patients with severe vertebral fractures admitted to the Henan Provincial People's Hospital from April 2004 to January 2017. There were 27 males and 70 females, aged 59-99 years [(78. 5 ± 13. 2) years]. There were 11 patients with three-segment fracture, nine patients with two-segment fracture and 77 patients with single fracture. All patients were treated with lateral decubitus unilateral approach for painless vertebral augmentation and received postoperative rehabilitation training guided by physicians. Preoperative and intraoperative blood loss were recorded. Preoperative and postoperative respiratory rate, heart rate, systolic pressure, oxygen saturation and acute physiology and chronic health evaluation score II ( APACHE II ) , height of vertebral compression site, and injured vertebrae Cobb angle were evaluated. The visual analogue scale ( VAS) and Oswestry dysfunction index ( ODI) were assessed to define function improvement. Meanwhile, the occurrence of re-fracture and complications were recorded. Results All patients were followed up for 3-8 months [(6.3 ±2.9)months]. The operation time was (69. 2 ± 25. 9) minutes, and the amount of intraoperative bleeding was (7. 5 ± 2. 6)ml. There were no significant differences in respiratory rate, heart rate, systolic blood pressure or oxygen saturation before operation and after operation ( P > 0. 05 ) . No surgical discontinuation or deterioration occurred. The APACHE II score was (15. 2 ± 3. 7) points before operation and (8. 4 ± 0.7)points at 24 hours after operation (P <0.05). The compression height parameter of the injured vertebraewas(17.2±3.6)mmbeforesurgery,(20.4±41.3)mmatoneweekaftersurgery,and(18.8± 1.3)mm at the last follow-up (P >0. 05). The Cobb angle was (25. 6 ± 9. 3)° before operation, (20.7±2.5)° at one week after operation and (18.5±3.1)° at the last follow-up (P>0.05). The VAS score was (8. 5 ± 1. 2)points before operation, (2. 1 ± 0. 3)points at one week after operation, and (3. 2 ± 1. 1)points at the last follow-up, respectively. The VAS scores at 1 week and the last follow-up were significantly improved compared with preoperative VAS ( P<0. 05 ) , but there was no significant difference between the former two (P>0. 05). The ODI value was 39. 9 ± 3. 4 before operation, 20. 2 ± 5. 2 at one week after operation, and 17. 2 ± 2. 0 at the last follow-up . The ODI values 1 week after operation and at the last follow-up were significantly improved compared with preoperative ODI ( P <0. 05),showing improvement trend during the follow-up (P<0. 05). No re-fracture occurred during the follow-up. No serious complications such as nerve injury, pulmonary embolism or death occurred during the operation and postoperative follow-up. Conclusions The unilateral approach painless vertebral augmentation for the treatment of severe OVCFs in critically ill patients under lateral decubitus position can improve the patient's operative tolerance and satisfaction, shorten the operation time, relieve postoperative pain and promote functional recovery. It is an alternative surgical procedure for the treatment of severe OVCFs in internal medicine.

Percutaneous vertebral augmentation: its complications and countermeasures / 介入放射学杂志

Nowadays,percutaneous vertebral augmentation (PVA),which includes percutaneous vertebroplasty (PVP) and percutaneous kyphonplasty (PKP),has become the most effective interventional method for painful vertebral lesions.Generally speaking,the complication incidence of PVA is lower,but once severe complications occur,the operative outcome and prognosis will be seriously affected.The complications caused by PVA include bone cement leakage-related complications,fat embolism,idiosyncratic reaction to bone cement,biomechanics-related complications and operation-related complications.This article aims to make a review about the complications of PVA and their prevention and treatment.Strict observation of operation indications and operating instructions are strongly suggested in order to reduce or avoid the occurrence of complications as much as possible.

Risk factors for the collapse of cemented vertebral bodies after the minimally invasive vertebral augmentation procedures / 中国骨伤

<p><b>OBJECTIVE</b>To evaluate the incidence rate, the independent factors, and the prevention measures of the collapse of cemented vertebral bodies after minimally invasive vertebral augmentation procedures including percutaneous vertebroplasty (PVP) and percutaneous kyphoplasty(PKP).</p><p><b>METHODS</b>From January 2012 to June 2013, 154 patients with single segmental osteoporotic vertebral compression fractures(OVCF)were treated with PVP or PKP. There were 65 males and 89 females, ranging in age from 57 to 90 years old, with a mean of (76.20±9.35) years old. All the patients were followed up, and the duration ranged from 6 to 30 months, with a mean of (15.43±6.81) months. All the patients were arranged to perform X-ray examination, and some of the patients were arranged to do MRI examination during the follow up period. Possible risk factors were studied including gender, age, surgical approach(PVP or PKP), lumbar spine bone mineral density, treated vertebral level, the presence of osteonecrosis in the vertebral body, filling pattern of the cement, and the restoration of anterior vertebral height. The Chi-square test and the multivariate Logistic regression model were used to analyze the risk factors.</p><p><b>RESULTS</b>The collapse of cemented vertebral bodies were found in 29 patients, and the total incidence rate of following time was 18.83%. A Multivariable Logistic Regression analysis revealed that the independent risk factors affecting the incidence rate of the collapse included surgical approach (OR=0.171,=0.010), lumbar spine bone mineral density(OR=0.242,=0.024), the presence of osteonecrosis in the vertebral body(OR=12.225,=0.003), filling pattern of the cement(OR=10.461,=0.000), and anterior vertebral height restoration(OR=0.316,=0.019).</p><p><b>CONCLUSIONS</b>The incidence rate of the collapse was high and was associated with many risk factors. Surgical approach, lumbar spine bone mineral density, the presence of osteonecrosis in the vertebral body, filling pattern of the cement, and anterior vertebral height restoration were the independent risk factors affecting the incidence rate of the collapse. Careful selection of patients before operation, symmetric cement distribution and fluid aspiration during operation, positive treatment of osteoporosis after operation would be the potential ways to avoid collapse of cemented vertebral bodies.</p>

Interventional treatments for cancer pain due to bone metastasis

More than 30% of patients with cancer do not receive adequate pain-control treatment. Metastatic bone lesion-induced pain is one of the most common causes of cancer pain. Although cancer pain is reasonably well controlled using the World Health Organization analgesic ladder in most cases, metastatic bone lesion-induced pain generally does not respond well to traditional treatments. Interventional treatments are considered only when traditional treatments are ineffective or increasing the opioids dosage is impossible because of severe complications. In these cases, interventional treatments, such as peripheral nerve block, neuraxial block, vertebral augmentation, percutaneous cementoplasty, radiofrequency ablation, and cryoablation, can be considered. Fortunately, nerve block techniques show significant effects in many cases. The recent development of the intrathecal pump makes drug delivery safer and continuous for patients, without the need for replacement, until the end. Vertebral augmentation is a very useful pain-relieving method for metastatic spinal lesion pain. Vertebral augmentation and percutaneous cementoplasty provide stability and reinforcement to the weight-bearing bones and spine, thereby improving the quality of life of patients. Percutaneous radiofrequency ablation and cryoablation are applicable to painful metastatic spinal and bone lesions; when performed together with vertebral augmentation or percutaneous cementoplasty, the results are even better. If interventional treatments are appropriately performed at the proper time, they can have a synergistic effect and lower the rate of side effects compared to traditional treatments; thus, increasing the quality of life of patients with cancer and restoring their dignity until the end.

Percutaneous Vertebral Augmentation for the Treatment of Osteoporotic Spinal Fractures

STUDY DESIGN: Review of the literature. OBJECTIVES: To present updated information on percutaneous vertebral augmentation (PVA) for osteoporotic spinal fractures (OSFs). SUMMARY OF LITERATURE REVIEW: Vertebroplasty and kyphoplasty have been used to treat osteoporotic spinal fractures for many years. A recent meta-analysis provides strong evidence in favor of cement augmentation in the treatment of symptomatic vertebral compression fractures. MATERIALS AND METHODS: Review of the relevant literature. RESULTS: A meta-analysis showed greater pain relief, functional recovery, and improvement in quality of life with cement augmentation compared with control subjects. CONCLUSIONS: Percutaneous vertebral augmentation of osteoporotic spinal fractures results in shorter hospital stays, reduced incidence of complications, and more rapid return of functional independence.

Vertebroplastía percutánea en el manejo del dolor de las fracturas vertebrales por compresión / Percutaneous cement vertebral augmentation in vertebral compression fractures: an update

Las fracturas vertebrales por compresión son de alta prevalencia y se relacionan principalmente a osteoporosis y cáncer. Frecuentemente tienen consecuencias devastadoras en la calidad de vida de los pacientes. Aquellos pacientes que no responden al tratamiento conservador se pueden beneficiar de una técnica mínimamente invasiva, la vertebroplastía, para reforzar la vértebra fracturada con cemento y así controlar el dolor. La vertebroplastía es un procedimiento ambulatorio con baja tasa de efectos colaterales cuando la realiza un médico con experiencia y el entrenamiento adecuado. Su tasa de éxito va del 65 al 95 por ciento, dependiendo de la indicación. Sólida evidencia científica se requiere aún para apoyar su amplio uso clínico.

Vertebral compression fractures are highly prevalent. Osteoporosis and cancer are the main causes. As a consequence patients endure excruciating breakthrough pain and debilitating experience that affect their quality of life. Those individuals that do not respond to classic treatment might benefit of vertebral cement augmentation. This is a totally ambulatory procedure aimed to control pain and stabilize the bone. Percutaneous approach is usually undertaken. Long lasting pain relief results in 65 to 95 percent of patients with a very low profile of complications when the procedure is done by experienced practitioners. Randomized, blinded and prospective studies are still required.