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Jiang G, Xu L, Ma Y, Guan J, Yang Y, Zhong W, Li W, Zhou S, Song J, Feng N, Qiu Z, Li Z, Zhou Y, Meng L, Qu Y, Yu X. Prediction of Screw Loosening After Dynamic Pedicle Screw Fixation With Lumbar Polyetheretherketone Rods Using Magnetic Resonance Imaging-Based Vertebral Bone Quality Score. Neurospine 2024; 21:712-720. [PMID: 38955540 PMCID: PMC11224750 DOI: 10.14245/ns.2448184.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/17/2024] [Accepted: 04/29/2024] [Indexed: 07/04/2024] Open
Abstract
OBJECTIVE To investigate the correlation between magnetic resonance imaging-based vertebral bone quality (VBQ) score and screw loosening after dynamic pedicle screw fixation with polyetheretherketone (PEEK) rods, and evaluate its predictive value. METHODS A retrospective analysis was conducted on the patients who underwent dynamic pedicle screw fixation with PEEK rods from March 2017 to June 2022. Data on age, sex, body mass index, hypertension, diabetes, hyperlipidemia history, long-term smoking, alcohol consumption, VBQ score, L1-4 average Hounsfield unit (HU) value, surgical fixation length, and the lowest instrumented vertebra were collected. Logistic regression analysis was employed to assess the relationship between VBQ score and pedicle screw loosening (PSL). RESULTS A total of 24 patients experienced PSL after surgery (20.5%). PSL group and non-PSL group showed statistical differences in age, number of fixed segments, fixation to the sacrum, L1-4 average HU value, and VBQ score (p < 0.05). The VBQ score in the PSL group was higher than that in the non-PSL group (3.56 ± 0.45 vs. 2.77 ± 0.31, p < 0.001). In logistic regression analysis, VBQ score (odds ratio, 3.425; 95% confidence interval, 1.552-8.279) were identified as independent risk factors for screw loosening. The area under the receiver operating characteristic curve for VBQ score predicting PSL was 0.819 (p < 0.05), with the optimal threshold of 3.15 (sensitivity, 83.1%; specificity, 80.5%). CONCLUSION The VBQ score can independently predict postoperative screw loosening in patients undergoing lumbar dynamic pedicle screw fixation with PEEK rods, and its predictive value is comparable to HU value.
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Affiliation(s)
- Guozheng Jiang
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Luchun Xu
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Yukun Ma
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Jianbin Guan
- Department of Neurosurgery, Honghui-Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yongdong Yang
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Wenqing Zhong
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Wenhao Li
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Shibo Zhou
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - JiaWei Song
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Ningning Feng
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Ziye Qiu
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Zeyu Li
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - YiShu Zhou
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Letian Meng
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Yi Qu
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
| | - Xing Yu
- Department of Neurosurgery, Dongzhimen Hospital, Beijing University of Traditional Chinese Medicine, Beijing, China
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Chen R, Zou K, Liu J, Li K, Zhou Y, Huang H, Yang F. Do modic changes affect the fusion rate in spinal interbody fusion surgery? A systematic review and network meta-analysis. J Clin Neurosci 2024; 125:110-119. [PMID: 38772174 DOI: 10.1016/j.jocn.2024.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 05/15/2024] [Indexed: 05/23/2024]
Abstract
OBJECTIVE To compare the fusion rates of spinal interbody fusion in patients with modic changes (MCs). METHODS This meta-analysis was registered at PROSPERO, and the project number was CRD42024538023. This network meta-analysis was conducted according to the PRISMA 2020 statement. The PubMed, Embase, Web of Science Core Collection, ClinicalTrials.gov and Cochrane Library databases were searched from inception to March 28, 2024 for potential studies. STATA 13.0 and Review Manager 5.3 were used to perform the meta-analysis. RESULTS Seven studies with a total of 1162 patients or segments assigned to four groups according to MCs grade were identified. The fusion rate in the non-modic changes (NMCs) was significantly greater than that in the MCs at the 3-month (p = 0.0001) and 6-month (p = 0.002) follow-ups. No significant difference was detected in the fusion rate at 12-month (p = 0.34) and final follow-ups (p = 0.41). No significant difference was found in cervical fusion (p = 0.88) or transforaminal lumbar interbody fusion (TLIF) (p = 0.51). The fusion rate of NMCs was significantly greater than that of MCs in posterior lumbar interbody fusion (PLIF) (p < 0.00001). No significant differences were identified among the four groups in the overall comparison, cervical fusion or TLIF subgroups. The fusion rate in the NMCs was significantly greater than that in the MCs-2 and MCs-3 in the PLIF. CONCLUSION MCs decreased the fusion rate at the 3- and 6-month follow-ups. MCs-2 and MCs-3 decrease the fusion rate in PLIF.
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Affiliation(s)
- Rigao Chen
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Kai Zou
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Jianjia Liu
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Ke Li
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Yi Zhou
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Haoyun Huang
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China
| | - Fei Yang
- Department of Orthopedics, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, Sichuan Province, China.
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Li J, Li Q, Deng Z, Wang L, Wang L, Song Y. Long-term Outcome of Isobar TTL System for the Treatment of Lumbar Degenerative Disc Diseases. Orthop Surg 2024; 16:912-920. [PMID: 38445544 PMCID: PMC10984823 DOI: 10.1111/os.14025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/03/2024] [Accepted: 02/06/2024] [Indexed: 03/07/2024] Open
Abstract
OBJECTIVE The Isobar TTL dynamic fixation system has demonstrated favorable outcomes in the short-term treatment of lumbar degenerative disc diseases (LDDs). However, there is a paucity of extensive research on the long-term effects of this system on LDDs. This study aimed to evaluate the long-term clinical and radiological outcomes of patients with LDDs who underwent treatment utilizing the Isobar TTL dynamic fixation system. METHODS The study analyzed the outcomes of 40 patients with LDDs who underwent posterior lumbar decompression and received single-segment Isobar TTL dynamic internal fixation at our hospital between June 2010 and December 2016. The evaluation of clinical therapeutic effect involved assessing postoperative pain levels using the visual analogue scale (VAS) and Oswestry disability index (ODI), both before surgery, 3 months after, and the final follow-up. To determine the preservation of functional motion in dynamically stable segments, we measured the range of motion (ROM) and disc height of stabilized and adjacent segments preoperatively and during the final follow-up. Additionally, we investigated the occurrence of adjacent segment degeneration (ASD). RESULTS Forty patients were evaluated, with an average age of 44.65 years and an average follow-up period of 79.37 months. Fourteen patients belonged to the spondylolisthesis group, while the remaining 26 were categorized under the stenosis or herniated disc group. The preoperative ROM of the stabilized segment exhibited a significant reduction from 8.15° ± 2.77° to 5.00° ± 1.82° at the final follow-up (p < 0.001). In contrast, there was a slight elevation in the ROM of the adjacent segment during the final follow-up, increasing from 7.68° ± 2.25° before surgery to 9.36° ± 1.98° (p < 0.001). The intervertebral space height (IH) in the stabilized segment exhibited a significant increase from 10.56 ± 1.99 mm before surgery to 11.39 ± 1.90 mm at the one-week postoperative follow-up (p < 0.001). Conversely, there was a notable decrease in the IH of the adjacent segment from 11.09 ± 1.82 mm preoperatively to 10.86 ± 1.79 mm at the one-week follow-up after surgery (p < 0.001). The incidence of ASD was 15% (6/40) after an average follow-up period of 79.37 months, with a rate of 15.38% (4/26) in the stenosis or herniated disc group and 14.29% (2/14) in the spondylolisthesis group; however, no statistically significant difference was observed in the occurrence of ASD among these groups (p > 0.05). CONCLUSION The Isobar TTL dynamic fixation system is an effective treatment for LDDs, improving pain relief, quality of life (QoL) and maintaining stabilized segmental motion. It has demonstrated excellent long-term clinical and radiographic results.
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Affiliation(s)
- Junhu Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital and West China School of Medicine, Sichuan University, Chengdu, China
| | - Qiujiang Li
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital and West China School of Medicine, Sichuan University, Chengdu, China
| | - Zhipeng Deng
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital and West China School of Medicine, Sichuan University, Chengdu, China
| | - Linnan Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital and West China School of Medicine, Sichuan University, Chengdu, China
| | - Lei Wang
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital and West China School of Medicine, Sichuan University, Chengdu, China
| | - Yueming Song
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital and West China School of Medicine, Sichuan University, Chengdu, China
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Zhao D, Ma Y, Yu X, Bi L, Yue X. Spinal epidural cavernous hemangiomas in the lumbar spine: A case report. Int J Surg Case Rep 2024; 114:109040. [PMID: 38029575 PMCID: PMC10698515 DOI: 10.1016/j.ijscr.2023.109040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023] Open
Abstract
INTRODUCTION Spinal epidural cavernous hemangiomas (SECHs) are relatively rare intradural epidural lesions of the spinal canal, and those occurring in the lumbar spine are even rarer. CASE PRESENTATION A 60-year-old man presented for low back pain with right leg pain. His pee and feces were both normal but symptoms were very similar to a typical lumbar disc herniation. The MRI findings suggest an epidural space of unknown nature in the spinal cord at the L2-3 level and a definite diagnosis of SECHs was made by postoperative pathological examination. CLINICAL DISCUSSION Patients who are suspected of having SECHs should undergo initial classification and differential diagnosis based on MRI imaging features. It is crucial to identify the responsible segment in correlation with the presenting symptoms. During surgery, the primary objective should be the complete removal of the mass, while taking utmost care to protect the nerves. Dynamic stabilization systems, utilizing pedicle rods, can be considered as one of the treatment options for such patients. CONCLUSION Patients presenting with low back pain and neurological symptoms should undergo MRI, and diagnosed with SECHs should undergo early surgical intervention. For patients with an intradural mass in the spinal canal, complete resection should be performed while prioritizing nerve protection.
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Affiliation(s)
- Dingyan Zhao
- Dongzhimen Hospital Afliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Yukun Ma
- Dongzhimen Hospital Afliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Xing Yu
- Dongzhimen Hospital Afliated to Beijing University of Chinese Medicine, Beijing 100700, China.
| | - Lianyong Bi
- Dongzhimen Hospital Afliated to Beijing University of Chinese Medicine, Beijing 100700, China
| | - Xinliang Yue
- Dongzhimen Hospital Afliated to Beijing University of Chinese Medicine, Beijing 100700, China
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Lang FF, Liu LY, Wang SW. Predictive modeling of perioperative blood transfusion in lumbar posterior interbody fusion using machine learning. Front Physiol 2023; 14:1306453. [PMID: 38187137 PMCID: PMC10767743 DOI: 10.3389/fphys.2023.1306453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/06/2023] [Indexed: 01/09/2024] Open
Abstract
Background: Accurate estimation of perioperative blood transfusion risk in lumbar posterior interbody fusion is essential to reduce the number, cost, and complications associated with blood transfusions. Machine learning algorithms have the potential to outperform traditional prediction methods in predicting perioperative blood transfusion. This study aimed to construct a machine learning-based perioperative transfusion risk prediction model for lumbar posterior interbody fusion in order to improve the efficacy of surgical decision-making. Methods: We retrospectively collected clinical data on 1905 patients who underwent lumbar posterior interbody fusion surgery at the Second Hospital of Shanxi Medical University between January 2021 and March 2023. All the data was randomly divided into a training set and a validation set, and the "feature_importances" method provided by eXtreme Gradient Boosting (XGBoost) algorithm was applied to select statistically significant features on the training set to establish five machine learning prediction models. The optimal model was identified by utilizing the area under the curve (AUC) and the probability calibration curve on the validation set. Shapley additive explanations (SHAP) and local interpretable model-agnostic explanations (LIME) were employed for interpretable analysis of the optimal model. Results: In the postoperative outcomes of patients, the number of hospital days in the transfusion group was longer than that in the non-transfusion group. Additionally, the transfusion group experienced higher total hospital costs, 90-day readmission rates, and complication rates within 90 days after surgery than the non-transfusion group. A total of 9 features were selected for the models. The XGBoost model performed best with an AUC value of 0.958. The SHAP values showed that intraoperative blood loss, intraoperative fluid infusion, and number of fused segments were the top 3 most important features affecting perioperative blood transfusion in lumbar posterior interbody fusion. The LIME algorithm was used to interpret the individualized prediction. Conclusion: Surgery, ASA class, levels fused, total intraoperative blood loss, operative time, and preoperative Hb are viable predictors of perioperative blood transfusion in lumbar posterior interbody fusion. The XGBoost model has demonstrated superior predictive efficacy compared to the traditional logistic regression model, making it a more effective decision-making tool for perioperative blood transfusion.
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Affiliation(s)
- Fang-Fang Lang
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Li-Ying Liu
- School of Public Health, Shanxi Medical University, Taiyuan, China
| | - Shao-Wei Wang
- Department of Orthopedics, The Second Hospital of Shanxi Medical University, Taiyuan, China
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Huang Z, Liu S, Nie M, Yuan J, Lin X, Chu X, Shi Z. Treatment of Lumbar Degenerative Disease with a Novel Interlaminar Screw Elastic Spacer Technique: A Finite Element Analysis. Bioengineering (Basel) 2023; 10:1204. [PMID: 37892934 PMCID: PMC10604319 DOI: 10.3390/bioengineering10101204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 09/30/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
A novel interlaminar elastic screw spacer technique was designed to maintain lumbar mobility in treating lumbar degenerative diseases. A validated finite element model of L4/5 was used to establish an ISES-1/2 model and an ISES-1/3 model based on different insertion points, a unilateral fixation model and a bilateral fixed model based on different fixation methods, and a Coflex-F model based on different implants. The elastic rods were used to fix screws. Under the same mechanical conditions, we compared the biomechanical characteristics to investigate the optimal entry point for ISES technology, demonstrate the effectiveness of unilateral fixation, and validate the feasibility of the ISES technique. Compared to ISES-1/3, the ISES-1/2 model had lower intradiscal pressure, facet cartilage stress, and posterior structural stress. Compared to the ISES-BF model, the ISES-UF model had lower intervertebral pressure, larger mobility, and smaller stress on the posterior structures. The ISES model had a similar intervertebral pressure and limitation of extension as the Coflex-F model. The ISES model retained greater mobility and reduced the stress on the facet cartilage and posterior structure compared with the Coflex-F model. Our study suggests that the ISES technique is a promising treatment of lumbar degenerative diseases, especially those with osteoporosis.
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Affiliation(s)
- Zebin Huang
- Department of Orthopedics, Changhai Hospital, Naval Medical University, Shanghai 200433, China; (Z.H.); (S.L.); (J.Y.); (X.L.)
| | - Shu Liu
- Department of Orthopedics, Changhai Hospital, Naval Medical University, Shanghai 200433, China; (Z.H.); (S.L.); (J.Y.); (X.L.)
| | - Maodan Nie
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Jiabin Yuan
- Department of Orthopedics, Changhai Hospital, Naval Medical University, Shanghai 200433, China; (Z.H.); (S.L.); (J.Y.); (X.L.)
| | - Xumiao Lin
- Department of Orthopedics, Changhai Hospital, Naval Medical University, Shanghai 200433, China; (Z.H.); (S.L.); (J.Y.); (X.L.)
| | | | - Zhicai Shi
- Department of Orthopedics, Changhai Hospital, Naval Medical University, Shanghai 200433, China; (Z.H.); (S.L.); (J.Y.); (X.L.)
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Guan J, Liu T, Yu X, Li W, Feng N, Jiang G, Zhao H, Yang Y. Biomechanical and clinical research of Isobar semi-rigid stabilization devices for lumbar degenerative diseases: a systematic review. Biomed Eng Online 2023; 22:95. [PMID: 37742006 PMCID: PMC10518087 DOI: 10.1186/s12938-023-01156-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 09/15/2023] [Indexed: 09/25/2023] Open
Abstract
While lumbar spinal fusion using rigid rods is a prevalent surgical technique, it can lead to complications such as adjacent segment disease (ASDis). Dynamic stabilization devices serve to maintain physiological spinal motion and alleviate painful stress, yet they are accompanied by a substantial incidence of construct failure and subsequent reoperation. Compared to traditional rigid devices, Isobar TTL semi-rigid stabilization devices demonstrate equivalent stiffness and effective stabilization capabilities. Furthermore, when contrasted with dynamic stabilization techniques, semi-rigid stabilization offers improved load distribution, a broader range of motion within the fixed segment, and reduced mechanical failure rates. This paper will review and evaluate the clinical and biomechanical performance of Isobar TTL semi-rigid stabilization devices. A literature search using the PubMed, EMBASE, CNKI, Wanfang, VIP, and Cochrane Library databases identified studies that met the eligibility criteria. Twenty-eight clinical studies and nine biomechanical studies were included in this systematic review. The VAS, the ODI, and Japanese Orthopedic Association scoring improved significantly in most studies. UCLA grading scale, Pfirrmann grading, and modified Pfirrmann grading of the upper adjacent segments improved significantly in most studies. The occurrence rate of ASD was low. In biomechanical studies, Isobar TTL demonstrated a superior load sharing distribution, a larger fixed segment range of motion, and reduced stress at the rod-screw/screw-bone interfaces compared with titanium rods. While findings from mechanical studies provided promising results, the clinical studies exhibited low methodological quality. As a result, the available evidence does not possess sufficient strength to substantiate superior outcomes with Isobar semi-rigid system in comparison to titanium rods. To establish more conclusive conclusions, further investigations incorporating improved protocols, larger sample sizes, and extended follow-up durations are warranted.
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Affiliation(s)
- Jianbin Guan
- Department of Spine Surgery, Honghui-Hospital, Xi'an Jiaotong University, Xi'an, 710054, China.
| | - Tao Liu
- Department of Spine Surgery, Honghui-Hospital, Xi'an Jiaotong University, Xi'an, 710054, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Xing Yu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China.
| | - Wenhao Li
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Ningning Feng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Guozheng Jiang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - He Zhao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yongdong Yang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
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Xiong X, Liu JM, Liu ZH, Chen JW, Liu ZL. Clinical outcomes and prediction nomogram model for postoperative hemoglobin < 80 g/L in patients following primary lumbar interbody fusion surgery. J Orthop Surg Res 2023; 18:286. [PMID: 37038168 PMCID: PMC10084696 DOI: 10.1186/s13018-023-03766-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/30/2023] [Indexed: 04/12/2023] Open
Abstract
OBJECTIVE To analyze the association between different postoperative hemoglobin (Hb) levels and postoperative outcomes in patients who have undergone primary lumbar interbody fusion, and to investigate the risk factors and establish a predictive nomogram mode for postoperative Hb < 80 g/L. METHODS We retrospectively analyzed 726 cases who underwent primary lumbar interbody fusion surgery between January 2018 and December 2021in our hospital. All patients were divided into three groups according to the postoperative Hb levels (< 70 g/L, 70-79 g/L, ≥ 80 g/L). The postoperative outcomes among the three groups were compared, and the risk factors for postoperative Hb < 80 g/L were identified by univariate and multivariable logistic regression analysis. Based on these independent predictors, a nomogram model was developed. Predictive discriminative and accuracy ability of the predicting model was assessed using the concordance index (C-index) and calibration plot. Clinical application was validated using decision curve analysis. Internal validation was performed using the bootstrapping validation. RESULTS Patients with postoperative Hb < 80 g/L had higher rates of postoperative blood transfusion, a greater length of stay, higher rates of wound complications, and higher hospitalization costs than those with postoperative Hb ≥ 80 g/L. Preoperative Hb, preoperative platelets, fusion segments, body mass index, operation time, and intraoperative blood loss independently were associated with postoperative Hb < 80 g/L. Intraoperative blood salvage was found to be a negative predictor for postoperative Hb < 80 g/L (OR, 0.21 [95% CI 0.09-0.50]). The area under the curve of the nomogram model was 0.950. After internal validations, the C-index of the model was 0.939. The DCA and calibration curve suggested that the nomogram model had a good consistency and clinical utility. CONCLUSIONS Postoperative Hb < 80 g/L in patients following primary lumbar interbody fusion surgery increased blood transfusions requirement and was independently associated with poor outcomes. A novel nomogram model was established and could conveniently predict the risk of postoperative Hb < 80 g/L in patients after this type of surgery.
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Affiliation(s)
- Xu Xiong
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
- Institute of Spine and Spinal Cord, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Jia-Ming Liu
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
- Institute of Spine and Spinal Cord, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Zi-Hao Liu
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
- Institute of Spine and Spinal Cord, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Jiang-Wei Chen
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
- Institute of Spine and Spinal Cord, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Zhi-Li Liu
- Medical Innovation Center, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China.
- Institute of Spine and Spinal Cord, Nanchang University, Nanchang, 330006, People's Republic of China.
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Guan J, Liu T, Yu X, Feng N, Jiang G, Li W, Zhao H, Yang Y. Isobar hybrid dynamic stabilization with posterolateral fusion in mild and moderate lumbar degenerative disease. BMC Musculoskelet Disord 2023; 24:217. [PMID: 36949435 PMCID: PMC10035183 DOI: 10.1186/s12891-023-06329-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 03/16/2023] [Indexed: 03/24/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate the feasibility of using the Isobar TTL system and posterolateral fusion in a two-segment hybrid fixation approach, combined with spinal decompression, for treating mild and moderate lumbar degenerative disease. Specifically, we sought to evaluate the effectiveness of this approach for managing two-segment mild and moderate lumbar degenerative disease, and to determine whether it could provide a safe and reliable alternative to traditional surgical methods. METHODS This retrospective study included 45 consecutive patients with two-level lumbar disc herniation or spinal stenosis, 24 of whom underwent the TTL system and posterolateral fusion combined (TTL group), and 21 of whom underwent posterolateral fusion alone (Rigid group). The surgical segment, admission diagnosis, operation time, and intraoperative bleeding were recorded separately for the two groups of patients. Imaging studies included pre- and postoperative radiography, magnetic resonance imaging, and computed tomography. The clinical outcomes were measured by Oswestry Disability Index (ODI) scores, and a visual analogue scale (VAS) for back and leg pain. RESULTS All patients completed the surgery successfully with a mean follow-up of 56.09 months. The operative time and intraoperative bleeding were lower in the TTL group than in the Rigid group (p < 0.05). All patients showed significant improvements in clinical outcomes, including VAS for back and leg pain, and ODI scores (p < 0.05). ODI scores, the TTL group was better than the Rigid group at 1 year after surgery and at the final follow-up (p < 0.05). Postoperative surgical segment range of motion (ROM) decreased in both groups (p < 0.05). The postoperative ROM of the upper adjacent segment increased in both groups and was significantly higher in both groups at the last follow-up compared with the preoperative period (p < 0.05), and the superior adjacent segment rom of the TTL group was lower than the Rigid group (p < 0.05). The modified Pfrrmann classification of the superior adjacent segment was significantly increased in both groups at the last follow-up (p < 0.05). And in the TTL group, ROM, DH, and modified Pfrrmann grading of dynamic segment outperformed fusion segments. According to the UCLA classification, the incidence of adjacent segment degeneration (ASD) was 4.2% in the TTL group and 23.8% in the Rigid group, and the incidence of ASD was lower in the TTL group than in the Rigid group (P < 0.05). CONCLUSION The Isobar TTL System was utilized in two-level lumbar hybrid surgery, resulting in no evident indications of lumbar instability being detected on X-rays captured at a minimum of 4 years after the operation, while retaining partial range of motion of the surgical segment. The general clinical efficacy is equivalent to titanium rod fusion surgery, presenting an alternative treatment for individuals with mild and moderate lumbar degenerative disease.
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Affiliation(s)
- Jianbin Guan
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
| | - Tao Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
| | - Xing Yu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China.
| | - Ningning Feng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
| | - Guozheng Jiang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
| | - Wenhao Li
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
| | - He Zhao
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
| | - Yongdong Yang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Haiyuncang No.5, Beijing, 100007, China
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10
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Guan J, Zhao D, Liu T, Yu X, Feng N, Jiang G, Li W, Yang K, Zhao H, Yang Y. Correlation between surgical segment mobility and paravertebral muscle fatty infiltration of upper adjacent segment in single-segment LDD patients: retrospective study at a minimum 2 years' follow-up. BMC Musculoskelet Disord 2023; 24:28. [PMID: 36635673 PMCID: PMC9835309 DOI: 10.1186/s12891-023-06137-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/05/2023] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVE The purpose of this study was to investigate the relationship between surgical segment mobility and fatty infiltration of the adjacent segment paravertebral muscles in patients with single-segment lumbar degenerative disease (LDD) who underwent decompression with fusion or dynamic stabilization. METHODS Retrospective analysis of patients who underwent lumbar decompression combined with titanium rod fixation intertransverse fusion (PITF group), Isobar TTL dynamic stabilization (TTL group) or Isobar EVO dynamic stabilization (EVO group) for single-segment lumbar degenerative disease, from March 2012 to July 2018. The preoperative and final follow-up clinical indexes C-LDSI and the measured imaging indexes (range of motion of the surgical segment and the upper adjacent segment, and Goutallier grade of the upper adjacent segment) were counted, and the differences between the preoperative and final follow-up indexes were compared. RESULTS According to the inclusion and exclusion criteria, 68 patients were included in this study, 21 in the PITF group, 24 in the TTL group, and 23 in the EVO group. At the final follow-up, the C-LSDI score had significantly higher in the PITF group than the TTL and EVO groups, and the C-LSDI score was a very strongly negatively correlated with ROM of surgical segment (r=-0.7968, p < 0.001). There was a strong negative correlation between surgical segment and upper adjacent segment mobility (r = -0.6959, p < 0.001). And there was a very strong negative correlation between ROM of surgical segment and upper adjacent segment paravertebral muscle Goutallier classification (r = -0.8092, p < 0.001), whereas the ROM of the upper adjacent segment was strong positive correlated with the Goutallier classification (r = 0.6703, P < 0.001). CONCLUSION Compared with decompression combined with rigid fusion, decompression combined with dynamic fixation for single-segment lumbar degenerative disease can significantly reduce postoperative low back stiffness. And a certain range of increased mobility of the dynamic stabilization device can effectively reduce the compensatory mobility of the upper adjacent segment and slow down the fatty infiltration of the paravertebral muscle in the adjacent segment.
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Affiliation(s)
- Jianbin Guan
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Dingyan Zhao
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Tao Liu
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Xing Yu
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Ningning Feng
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Guozheng Jiang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Wenhao Li
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Kaitan Yang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - He Zhao
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
| | - Yongdong Yang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Haiyuncang No.5, Dongcheng District 100700 Beijing, China
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11
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Guan J, Liu T, Feng N, Jiang G, Li W, Yang K, Zhao H, Yang Y, Yu X. Comparison between single-segment Isobar EVO dynamic stabilization and Isobar TTL dynamic stabilization in the treatment of lumbar degenerative diseases: a single center retrospective study over 4 years. BMC Musculoskelet Disord 2022; 23:998. [PMCID: PMC9675160 DOI: 10.1186/s12891-022-05913-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/25/2022] [Indexed: 11/21/2022] Open
Abstract
Objective Posterior instrumented fusion is the most widely accepted surgical treatment for spinal stenosis and disc herniation. However, fusion can affect daily activities due to lumbar stiffness. In recent years, dynamic stabilization has been introduced to overcome the drawbacks of fusion, however, it is inconclusive whether dynamic stabilization requires the maintenance of a level of activity that is closer to the physiological state of activity for better clinical efficacy. The purpose of this study was to compare the effectiveness of dynamic stabilization with different levels of activity (Isobar EVO and TTL) in the treatment of spinal stenosis and disc herniation. Methods This study retrospectively reviewed 80 consecutive patients with lumbar degenerative diseases who were undergoing surgical treatment between March 2014 and July 2018. 41 patients (EVO group) and 39 patients (TTL group) underwent fenestrated decompression with Isobar EVO stabilization and Isobar TTL stabilization, respectively. Clinical outcomes, radiographic data, and postoperative complications were compared between the two groups. Results At an average follow-up of 52.23 ± 2.97 months, there were no significant differences in the oswestry disability index (ODI) (P > 0.05). The visual analog scale for back pain (VASback) and visual analog scale for the leg pain (VASleg) of the EVO group were lower compared with the TTL group (P < 0.05). The range of motion (ROM) of operated segments were significantly higher in the EVO group as compared to the TTL group (P < 0.05). The intervertebral space height (ISH) of upper adjacent segments were significantly higher in the EVO group as compared to the TTL group (P < 0.05). The overall complications were less in the EVO group, but the difference was not statistically significant (P > 0.05). Conclusion Both Isobar EVO dynamic stabilization and TTL dynamic stabilization can improve clinical outcomes of patients with spinal stenosis and disc herniation. Isobar EVO has advantages over Isobar TTL in terms of improving low back and leg pain, maintaining mobility of the operated segment, and preventing further degeneration of the upper adjacent segment.
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Affiliation(s)
- Jianbin Guan
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Tao Liu
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Ningning Feng
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Guozheng Jiang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Wenhao Li
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Kaitan Yang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - He Zhao
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Yongdong Yang
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
| | - Xing Yu
- grid.24695.3c0000 0001 1431 9176Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, China
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