OBJECTIVE: To compare the effectiveness of different puncture methods of the flexible bone cement delivery device in unilateral percutaneous curved vertebroplasty for osteoporotic vertebral upper 1/3 compression fractures. METHODS: A retrospective analysis was conducted on the clinical data of 67 patients with osteoporotic vertebral upper 1/3 compression fractures who were admitted and met the selection criteria between January 2023 and April 2024. The patients were divided into two groups based on the puncture method of the flexible bone cement delivery device: the oblique puncture group ( n=37) and the parallel puncture group ( n=30). There was no significant difference ( P>0.05) between the two groups in terms of gender, age, bone mineral density (T value), distribution of fractured vertebrae, time from injury to operation, and preoperative visual analogue scale (VAS) score for pain, Oswestry disability index (ODI), anterior vertebral height of the fractured vertebra, and Cobb angle of the fractured vertebra. The following parameters were compared between the two groups: operation time, incidence of secondary puncture, incidence of bone cement leakage, volume of injected bone cement, bone cement distribution score, as well as VAS score, ODI, anterior vertebral height of the fractured vertebra, and Cobb angle of the fractured vertebra at 1 day after operation and at last follow-up. RESULTS: Two cases in the oblique puncture group and 7 cases in the parallel puncture group underwent secondary puncture during operation, and the difference in the incidence of secondary puncture was significant ( P<0.05). No complications such as bone cement hypersensitivity, bone cement embolism, nerve injury, or epidural hematoma occurred in both groups. There was no significant difference in operation time, volume of injected bone cement, incidence of bone cement leakage, distribution score and rating of bone cement between the two groups ( P>0.05). All patients were followed up 6-18 months (mean, 12.0 months), and there was no significant difference in the follow-up time between the two groups ( P>0.05). No further fracture collapse or compression occurred in the fractured vertebra during follow-up. Both groups exhibited significant improvements in VAS score, ODI, anterior vertebral height, and Cobb angle of the fractured vertebra after operation compared to baseline ( P<0.05). There were also significant differences between the two time points after operation ( P<0.05). However, there was no significant difference in the above indicators between the two groups ( P>0.05). CONCLUSION For osteoporotic vertebral upper 1/3 compression fractures treated with unilateral percutaneous curved vertebroplasty, both oblique and parallel puncture methods of the flexible bone cement delivery device can effectively relieve pain, but the former is more conducive to reducing the incidence of secondary puncture.
Humans ; Bone Cements/therapeutic use* ; Fractures, Compression/surgery* ; Retrospective Studies ; Vertebroplasty/instrumentation* ; Osteoporotic Fractures/surgery* ; Spinal Fractures/surgery* ; Female ; Male ; Aged ; Middle Aged ; Treatment Outcome ; Punctures/methods* ; Aged, 80 and over

OBJECTIVE: To observe the clinical outcomes of anterior approach for the revision surgery following unsuccessful bone cement augmentation in osteoporotic vertebral compression fractures. METHODS: A total of 10 patients who experienced unsuccessful bone cement augmentation underwent anterior revision surgery between January 2020 and December 2021. There were 2 males and 8 females. The age ranged from 55 to 83 years old. The reasons for revision surgery were postoperative infection in 2 cases, postoperative neurological symptoms in 3 cases, and kyphosis resulting from postoperative vertebral collapse in 5 cases. The involved segments included 2 cases of L₁, 4 cases of L₂, 3 cases of L₃, and 1 case of L₄. Among them, 2 patients underwent primary percutaneous vertebroplasty (PVP), while eight patients underwent primary percutaneous kyphoplasty (PKP). The time interval between the first and second surgeries ranged from 1 to 13 months. All patients presented with varying degrees of lumbar pain. X-ray, CT, and MRI scans were conducted prior to the revision procedure. Surgical duration, intraoperative blood loss, and any complications were documented. RESULTS: The surgical procedures were successful in all 10 patients, with 9 cases undergoing anterior reconstruction and posterior internal fixation through the interspace of the multifidus longissimus muscle. One patient underwent anterior reconstruction and anterior plate internal fixation. The duration of the anterior approach surgery ranged from 90 to 190 minutes, with a blood loss volume ranging from 130 to 480 ml. None of the patients experienced any intraoperative or postoperative complications such as nerve injury, cerebrospinal fluid leakage, major vessel damage, abdominal organ injury, incision infection, or bleeding. The follow-up period for 10 patients ranged from 3 to 20 months. Throughout the follow-up, none of the patients experienced complications such as displacement, cutting, or loosening of the artificial vertebral body. Prior to the operation, the visual analogue scale(VAS) ranged from 4 to 8 points, the final follow-up assessment ranged from 2 to 3 points. The Oswestry disability index (ODI) score a preoperative ranged from 17% to 37%, the latest follow-up evaluation ranged from 2% to 16%. Notably, significant correction in kyphosis angle was observed in 5 cases. Furthermore, there was notable improvement in VAS and ODI compared to preoperative values. CONCLUSION Anterior corpectomy and artificial vertebral body implantation not only facilitate the removal of bone cement but also enable effective debridement and direct decompression. Moreover, by reconstructing anterior and middle column support, restoring vertebral height and local curvature, in combination with pedicle screw internal fixation, surgical segment stability can be achieved. Therefore, for patients requiring revision following failed bone cement augmentation, anterior surgery represents an ideal treatment option.
Humans ; Female ; Male ; Aged ; Bone Cements ; Fractures, Compression/surgery* ; Middle Aged ; Aged, 80 and over ; Spinal Fractures/surgery* ; Osteoporotic Fractures/surgery* ; Reoperation/methods* ; Vertebroplasty

OBJECTIVE: To explore the clinical effect of personalized puncture planning before surgery using Picture Archiving and Communication System (PACS) in the treatment of osteoporotic vertebral compression fractures in the elderly. METHODS: A total of 69 elderly patients with osteoporotic vertebral compression fractures treated by percutaneous vertebroplasty from January 2020 20 to December 2021 with more than 1 year of follow-up were analyzed retrospectively. Thirty-four patients were individualized for preoperative planning with PACS software (observation group), including 8 males and 26 females, with a mean age of (73.30±7.96) years old;and 35 patients were treated with conventional treatment (control group), including 7 males and 28 females, with a mean age of (77.30±7.84) years old. The operation time, the amount of cement injection, cement leakage rate, bone watertight diffusion and refracture within 1 year between two groups were observed and compared. The Cobb's angle, low back pain visual analogue scale(VAS) and the modified Oswsetry disability indexes(ODI) before surgery and 1 day, 1 year after surgery were compared between two groups. RESULTS: Both groups successfully completed the operation without serious surgical complications, 2 refractures occurred in the control group. The operation time in the observation group was(41.9±11.9) min, which was less than that in the control group (52.7±13.6) min (P<0.05). There was no significant difference in the cement injection volume between two groups (P>0.05). Two cases of cement leakage in the observation group was less than 8 in the control group (P<0.05). The bone cement distribution index of two groups had significant difference(P<0.05). There were no significant differences between two groups in Cobb's angle of the injured vertebras and ODI before and 1 day after surgery(P>0.05), however, the comparative differences were statistically significant at 1 year after surgery(P<0.05). There was no significant difference in the VAS between two groups at each time period(P>0.05). CONCLUSION Using the PACS software to plan personalized puncture scheme can reduce the operation time, reduce the cement leakage rate, improve the diffusion of bone cement and longer maintain the postoperative form of vertebral body and the functional state of patients' lumbar back.
Humans ; Male ; Female ; Aged ; Vertebroplasty/methods* ; Fractures, Compression/diagnostic imaging* ; Spinal Fractures/diagnostic imaging* ; Osteoporotic Fractures/diagnostic imaging* ; Aged, 80 and over ; Retrospective Studies ; Radiology Information Systems

OBJECTIVE: To compare the bone cement diffusion and clinical effects between conventional percutaneous vertebroplasty(PVP) and the application of positioning reduction and targeted puncture techniques in the treatment of elderly patients with osteoporotic vertebral compression fractures. METHODS: A retrospective comparative study was conducted, analyzing the clinical data of 268 elderly patients with single-level vertebral fractures admitted between January 2021 and March 2023. The patients were divided into two groups:the conventional PVP group (138 cases) and the targeted PVP group (130 cases). Among them, 138 patients in the conventional group were treated by traditional PVP with bilateral approach including 26 males and 112 females, with a mean age of (72.9±4.0) years old. Another 130 patients in the targeted PVP group included 23 males and 107 females, with a mean age of (72.2±7.0) years old;vertebral reduction was first achieved using prone traction and compression reduction technique based on preoperative imaging examination, the operating bed was used to maintain spinal hyper-extension of the spine and puncture the fracture space target to inject bone cement. The adequacy of bone cement filling in the fracture gap was evaluated based on imaging examination. The operation time, the rate of bone cement leakage and the type of leakage, bone cement filling in the fracture area, the amount of cement injection, the thoracolumbar back pain visual analogue scale(VAS), Oswestry disability index(ODI), and the local kyphosis Cobb angle of the fractured vertebra were compared between two groups. RESULTS: The operation time (43.9±5.7) min, bone cement filling (5.3±1.5) ml in the conventional PVP group were higher than the target group (39.3±3.6) min, (4.1±1.7) ml(P<0.05). There were no statistically significant differences in bone cement leakage rate or type(P>0.05). The targeted PVP group achieved sufficient bone cement filling in the fracture area, while the conventional PVP group had 34 cases (25.0%) with insufficient filling in the fracture area(P<0.01). There was no significant difference in VAS, ODI, and local Cobb angle of the fractured vertebra before operation between two groups(P>0.05). The VAS of 3.64±0.94 and ODI of 11.50±0.38 at 3 day after operation in the target group were better than those of the conventional group 4.69±0.78 and 15.06±1.66 (P<0.05). The local Cobb angle (7.51±5.37)° was less than that of the conventional group (11.68±3.98)°(P<0.05). CONCLUSION The application of positioning reduction and targeted puncture techniques in percutaneous vertebroplasty for elderly patients with osteoporotic vertebral compression fractures can restore vertebral height using positioning reduction technique to avoid excessive tension on the intervertebral soft tissue. Targeted puncture technique effectively stabilizes vertebral fractures and achieves adequate bone cement filling, thereby improving surgical outcomes. This technique is safe and effective, representing a new treatment modality.
Humans ; Male ; Female ; Vertebroplasty/methods* ; Aged ; Fractures, Compression/surgery* ; Retrospective Studies ; Spinal Fractures/surgery* ; Osteoporotic Fractures/surgery* ; Aged, 80 and over ; Bone Cements ; Middle Aged

OBJECTIVE: To investigate the clinical efficacy of bilateral targeted puncture in percutaneous vertebroplasty(PVP) based on the vertebral osteodense zone. METHODS: A retrospective analysis was conducted on 76 patients with fresh symptomatic osteoporotic vertebral compression fractures, characterized by the presence of a dense zone, who underwent percutaneous vertebroplasty (PVP) between January 2021 and December 2021. All patients involved single-level vertebral fractures. There were 19 males and 57 females, aged from 62 to 88 years old, with an average of (68.5±12.5) years old. All patients underwent bilateral transpedicular puncture procedures. Preoperative CT or MRI was utilized to ascertain the relative position of the bone osteodense zone within the vertebral body (specifically, whether this zone is situated in the upper one-third or one-quarter of the left or right sagittal plane). Considering the head and tail regions of the dense zone as puncture targets, the puncture points and paths were meticulously planned, and the working channel was subsequently established. Under continuous monitoring by a C-arm X-ray machine, bone cement was carefully and gradually injected. The operation time, bone cement injection volume, and bone cement leakage were recorded. The visual analogue scale (VAS) and Oswestry disablity index (ODI) were used to evaluate the effectiveness of the operation. ODI and anterior height (AH) of the vertebral body were used to evaluate the efficacy. RESULTS: All patients successfully completed the surgery and were followed up for (8.0±1.0) months. The operation time was (36.57±11.25) min, the volume of bone cement injection was(6.07±1.19) ml, and 21 patients of bone cement leakage. There were 3 patients with the VAS exceeded 4 points two days postoperatively, indicating suboptimal pain management. At the three time points of pre-operation, 2 days post-operation and 6 months post-operation, the VAS scores were(7.82±1.29), (2.11±0.44), and (2.04±0.67) respectively;the ODI percentages were(75.65±7.23)%, (29.45±4.16)%, and(28.68±5.62)%;and the AH values were (11.02±1.30), (12.87±3.91), and (12.91±3.86) cm. The differences were all statistically significant(P<0.05). The aforementioned three indices demonstrated significant improvement at both 2 days and 6 months post-operation (all P<0.05). There were no statistically significant differences in these indices between the 2-day and 6-month post-operative periods(P>0.05). The postoperative outcome was satisfactory and durable, with no evidence of vertebral height reduction. CONCLUSION Bilateral targeted puncture based on the osteodense dense zone within the vertebral body can achieve bilateral symmetrical and upright full vertebral bone cement reinforcement without increasing bone cement leakage, achieving good early efficacy and preventing late vertebral collapse. This has positive significance for further improving the efficacy of percutaneous vertebroplasty.
Humans ; Male ; Female ; Vertebroplasty/methods* ; Aged ; Middle Aged ; Aged, 80 and over ; Retrospective Studies ; Spinal Fractures/surgery* ; Fractures, Compression/surgery* ; Punctures ; Bone Cements ; Osteoporotic Fractures/surgery*

OBJECTIVE: To evaluate the short-and medium-term efficacy of posterior medial branch block in the treatment of persistent pain after percutaneous vertebral augmentation. METHODS: From January 2018 to January 2023, a total of 1, 062 patients with osteoporotic vertebral compression fractures underwent percutaneous vertebral augmentation. Among them, 32 elderly patients who experienced persistent low back pain after surgery and subsequently received posterior medial branch block and cryoablation were included. Six patients died during follow-up, leaving 26 patients for final analysis (1 male, 25 females). The mean age was (82.96±5.66) years (ranged, 76 to 94 years). The mean body mass index was (23.76±3.08) kg·m^-2(ranged 18.1 to 27.2 kg·m^-2). The bone mineral density T-value ranged from -2.5 to -4.3 with a mean of (-3.09±0.56). The mean volume of bone cement injected was 6.00 (5.38, 7.00) ml. Fracture locations were T₁₁ (2 cases), T₁₂ (7 cases), L₁ (10 cases), L₂ (6 cases), and L₃ (1 case). The mean interval from vertebral augmentation to block treatment was (7.12±2.22) months (rangd 6 to 12 months). The vertebral augmentation procedures were percutaneous kyphoplasty(PKP) in 12 cases and percutaneous vertebroplasty (PVP) in 14 cases. At the 2nd week, 3rd month, and 6th month after the block, the numerical rating scale(NRS), Oswestry disability index(ODI), patient satisfaction, and pain relief rate at the 6th month were evaluated. Relationships between pain relief rate at the 6th month after the last treatment and possible influencing factors were analyzed. RESULTS: Compared with X-ray films after percutaneous vertebral augmentation, the X-ray films before block showed an increase in kyphotic angle and vertebral compression rate, with statistically significant differences(P<0.05). At the 2nd week, 3rd month, and 6th month after posterior medial branch block and cryoablation, NRS and ODI scores were significantly lower than before the block(P<0.05). Among the 26 patients, 5 received additional cryoablation. At the 6th month after the last treatment, 19 patients reported excellent or good satisfaction. Univariate binary Logistic analysis showed all P>0.05, and no independent factor affecting final satisfaction or pain relief at 6 months after the last treatment was identified. CONCLUSION Posterior medial branch block(with cryoablation) can effectively improve short-and medium-term symptoms and function in patients with persistent axial low back pain after percutaneous vertebral augmentation for osteoporotic vertebral fractures.
Humans ; Male ; Female ; Aged ; Spinal Fractures/surgery* ; Aged, 80 and over ; Osteoporotic Fractures/surgery* ; Vertebroplasty/adverse effects* ; Nerve Block/methods*

Humans ; Spinal Fractures/etiology* ; Fractures, Compression/etiology* ; Osteoporotic Fractures/complications* ; Vertebroplasty/adverse effects* ; Bone Diseases, Metabolic/complications* ; Punctures/adverse effects* ; Treatment Outcome ; Bone Cements ; Retrospective Studies

OBJECTIVE: To investigate the effect of bone cement distribution on efficacy of residual back pain after percutaneous vertebra plasty(PVP). METHODS: From January 2017 to December 2020, a total of 65 cases with single segment osteoporotic thoracolumbar vertebral fractures underwent parallel vertebroplasty surgery. On the basis of the postoperative X-ray films of bone cement distribution were divided into two groups. The bone cement was biased to the lateral side of the vertebral body (partial group, 20 cases), there were 9 males and 11 famales with an average age of (70.3±7.4) years old ranging from 60 to 84 years old. The bone cement was over the vertebral midline, and completely filled with contralateral vertebral body (bilateral group, 45 cases), there were 10 males and 35 famales with an average age of (70.7±8.0) years old ranging from 60 to 86 years old. All of them underwent PVP surgery, bone cement was injected into the vertebral body through paitail transpedicular approach. The amount of bone cement injection, the visual analogue scale(VAS) of preoperation and 1 day, 1 month, 3 months after surgery between two groups were observed and compared. RESULTS: The amount of cement injection was (4.25±0.99) ml in the partial group, and (4.07±1.18) ml in the bilateral group, there was no significant difference between two groups (P>0.05). Postoperative pain was relieved than preoperative pain (P<0.05), the VAS of 1 day, 1 and 3 months after operation (3.90±1.37), (2.35±0.67) and (1.55±0.51) in the partial group were higher than (2.67±0.60), (1.62±0.58) and (1.31±0.47) in the bilateral group (P<0.05). There were 9 cases in partial group, the pain was not relieved due to unfilled cement until the contralateral bone was injected into the bone cement. CONCLUSION The distribution of bone cement is one of the main factors affecting residual back pain after PVP, and in the clinical, we should make sure the distribution of bone cement over the midline of vertebral body.
Humans ; Bone Cements ; Aged ; Male ; Female ; Middle Aged ; Aged, 80 and over ; Vertebroplasty/methods* ; Back Pain/etiology* ; Lumbar Vertebrae/surgery* ; Spinal Fractures/surgery* ; Thoracic Vertebrae/surgery*

OBJECTIVE: To observe the clinical efficacy of targeted sealing with high viscosity bone cement and secondary injection of low viscosity bone cement in the treatment of OVCFs patients with the fracture lines involved vertebral body margin. METHODS: The elderly patients who underwent vertebroplasty for osteoporotic vertebral compression fractures from January 2019 to September 2021 were selected as the screening objects. Through relevant standards and further CT examination, 56 patients with fracture lines involving the anterior wall or upper and lower endplates of the vertebral body were selected for the study. There were 21 males and 35 females, aged from 67 to 89 years old with an average of (76.58±9.68) years. All 56 patients underwent secondary injection of bone cement during operation. Only a small amount of high viscosity cement was targeted to seal the edge of the vertebral body for the first time, and low viscosity cement was injected to the vertebral bodies during second bolus with well-distributed. The operation time, bone cement volume and bone cement leakage were recorded, and the pain relief was evaluated by visual analogue scale (VAS). RESULTS: All patients were followed up for more than 3 months and the surgeries were successfully complete. The operation time was (50.41±10.30) min and the bone cement volume was (3.64±1.29) ml. The preoperative VAS was (7.21±2.41) points, which decreased significantly to (2.81±0.97) points 3 days after operation(P<0.05). Among the 56 patients, 2 cases(3.57%) had bone cement leakage, 1 case leaked to the paravertebral vein, and 1 case slightly bulged to the paravertebral through the crack when plugging the vertebral crack. Both patients had no obvious clinical symptoms. CONCLUSION In vertebroplasty surgery, targeted sealing of high viscosity bone cement and secondary injection of low viscosity bone cement can reduce intraoperative bone cement leakage and improve the safety of operation.
Male ; Female ; Humans ; Aged ; Aged, 80 and over ; Bone Cements/therapeutic use* ; Fractures, Compression/etiology* ; Spinal Fractures/surgery* ; Viscosity ; Osteoporotic Fractures/surgery* ; Retrospective Studies ; Vertebroplasty/adverse effects* ; Treatment Outcome

OBJECTIVE: To study the application of different puncture techniques to inject bone cement in osteoporotic vertebral compression fractures (OVCFs). METHODS: The clinical data of 282 patients with OVCFs treated from January 2017 to December 2019 were collected for a retrospective study. According to the surgical plan the patients were divided into group A and B, with 141 cases in each group. In group A, extreme lateral puncture was used to inject bone cement through unilateral puncture and bilateral puncture. In group B, bone cement was injected through unilateral pedicle puncture through pedicle approach. The operation status(operation time, radiation exposure time, bone cement injection volume, hospital stay) and complications were observed between two groups. Before operation and 6, 12 months after operation, the pain mediators such as serotonin 5-hydroxytryptamine (5-HT), prostaglandin E2(PGE2), substance P(SP) were compared, bone mineral density, anatomical parameters of the injured vertebrae (height of the anterior edge of the vertebral body, height of the posterior edge of the vertebral body, Cobb angle), visual analogue scale (VAS) and Oswestry disability index (ODI) were evaluated between two groups. RESULTS: There were no significant difference in operation time, radiation exposure time, hospital stay between two groups (P>0.05). The amount of bone cement injected in group A was greater than that in group B (P<0.05). The serum 5-HT, SP and PGE2 levels of group A were lower than those of group B at 12 months after operation (P<0.05). The height of anterior edge and height of the posterior edge of vertebral body in group A were greater than those of group B at 12 months after operation, Cobb angle of group A was smaller than that of group B, VAS and ODI were lower than those of group B(P<0.05). There was no significant difference in bone mineral density between two groups at 6 and 12 months postoperatively(P<0.05). There was no significant difference between two groups in postoperative complications (P>0.05). CONCLUSION Compared with unilateral puncture of the pedicle approach, unilateral puncture and bilateral cement injection technique is more conducive to the recovery of the injured vertebral anatomy and function, and do not prolong operation time, radiation exposure time, hospital stay, nor do increase the risk of nerve damage and bone cement leakage, and postoperative bone metabolism and bone mineral density are improved well, which is a safe and reliable surgical method for the treatment of OVCFs.
Humans ; Spinal Fractures/surgery* ; Fractures, Compression/surgery* ; Bone Cements ; Vertebroplasty/methods* ; Retrospective Studies ; Dinoprostone ; Serotonin ; Treatment Outcome ; Osteoporotic Fractures/surgery* ; Kyphoplasty ; Punctures