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Lu H, Zhang W, Chai Z, Ge X, Yu H. Risk factors for poor neurological recovery after anterior cervical discectomy and fusion: imaging characteristics. J Orthop Surg Res 2024; 19:390. [PMID: 38965626 PMCID: PMC11223388 DOI: 10.1186/s13018-024-04886-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Poor neurological recovery in patients after anterior cervical discectomy and fusion has been frequently reported; however, no study has analyzed the preoperative imaging characteristics of patients to investigate the factors affecting surgical prognosis. The purpose of this study was to investigate the factors that affect the preoperative imaging characteristics of patients and their influence on poor neurologic recovery after anterior cervical discectomy and fusion. METHODS We retrospectively analyzed the clinical data of 89 patients who met the criteria for anterior cervical discectomy and fusion for the treatment of single-level cervical spondylotic myelopathy and evaluated the patients' neurological recovery based on the recovery rate of the Japanese Orthopaedic Association (JOA) scores at the time of the final follow-up visit. Patients were categorized into the "good" and "poor" groups based on the JOA recovery rates of ≥ 50% and < 50%, respectively. Clinical information (age, gender, body mass index, duration of symptoms, preoperative JOA score, and JOA score at the final follow-up) and imaging characteristics (cervical kyphosis, cervical instability, ossification of the posterior longitudinal ligament (OPLL), calcification of herniated intervertebral discs, increased signal intensity (ISI) of the spinal cord on T2-weighted imaging (T2WI), and degree of degeneration of the discs adjacent to the fused levels (cranial and caudal) were collected from the patients. Univariate and binary logistic regression analyses were performed to identify risk factors for poor neurologic recovery. RESULTS The mean age of the patients was 52.56 ± 11.18 years, and the mean follow-up was 26.89 ± 11.14 months. Twenty patients (22.5%) had poor neurological recovery. Univariate analysis showed that significant predictors of poor neurological recovery were age (p = 0.019), concomitant OPLL (p = 0.019), concomitant calcification of herniated intervertebral discs (p = 0.019), ISI of the spinal cord on T2WI (p <0.05), a high grade of degeneration of the discs of the cranial neighboring levels (p <0.05), and a high grade of discs of the caudal neighboring levels (p <0.05). Binary logistic regression analysis showed that ISI of the spinal cord on T2WI (p = 0.001 OR = 24.947) and high degree of degeneration of adjacent discs on the cranial side (p = 0.040 OR = 6.260) were independent risk factors for poor neurological prognosis. CONCLUSION ISI of the spinal cord on T2WI and high degree of cranial adjacent disc degeneration are independent risk factors for poor neurological recovery after anterior cervical discectomy and fusion. A comprehensive analysis of the patients' preoperative imaging characteristics can help in the development of surgical protocols and the management of patients' surgical expectations.
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Affiliation(s)
- Haitao Lu
- Department of Orthopedics, Fuyang People's Hospital of Bengbu Medical University(Fuyang People's Hospital), 501 Sanqing Road, Fuyang, Anhui, 236000, China
| | - Wei Zhang
- Department of Orthopedics, Fuyang People's Hospital of Bengbu Medical University(Fuyang People's Hospital), 501 Sanqing Road, Fuyang, Anhui, 236000, China
| | - Zihao Chai
- Department of Orthopedics, Fuyang Sixth People 's Hospital, 2019 Huaihe Road, Fuyang, Anhui, 236000, China
| | - Xiubo Ge
- Department of Orthopedics, Fuyang People's Hospital of Bengbu Medical University(Fuyang People's Hospital), 501 Sanqing Road, Fuyang, Anhui, 236000, China
| | - Haiyang Yu
- Department of Orthopedics, Fuyang People's Hospital of Bengbu Medical University(Fuyang People's Hospital), 501 Sanqing Road, Fuyang, Anhui, 236000, China.
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Sun SP, Phang CR, Tzou SC, Chen CM, Ko LW. Integration of MRI and somatosensory evoked potentials facilitate diagnosis of spinal cord compression. Sci Rep 2023; 13:7861. [PMID: 37188786 DOI: 10.1038/s41598-023-34832-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 05/09/2023] [Indexed: 05/17/2023] Open
Abstract
This study aimed to integrate magnetic resonance imaging (MRI) and related somatosensory evoked potential (SSEP) features to assist in the diagnosis of spinal cord compression (SCC). MRI scans were graded from 0 to 3 according to the changes in the subarachnoid space and scan signals to confirm differences in SCC levels. The amplitude, latency, and time-frequency analysis (TFA) power of preoperative SSEP features were extracted and the changes were used as standard judgments to detect neurological function changes. Then the patient distribution was quantified according to the SSEP feature changes under the same and different MRI compression grades. Significant differences were found in the amplitude and TFA power between MRI grades. We estimated three degrees of amplitude anomalies and power loss under each MRI grade and found the presence or absence of power loss occurs after abnormal changes in amplitude only. For SCC, few integrated approach combines the advantages of both MRI and evoked potentials. However, integrating the amplitude and TFA power changes of SSEP features with MRI grading can help in the diagnosis and speculate progression of SCC.
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Affiliation(s)
- Shu-Pin Sun
- International Ph.D. Program in Interdisciplinary Neuroscience (UST), College of Biological Science and Technology, National Yang Ming Chiao Tung University, 734, Engineering Bldg. 5, 1001 Daxue Road, Hsinchu, 30010, Taiwan, ROC
- Department of Medical Research, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, 300, Taiwan, ROC
- Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan, ROC
| | - Chun-Ren Phang
- International Ph.D. Program in Interdisciplinary Neuroscience (UST), College of Biological Science and Technology, National Yang Ming Chiao Tung University, 734, Engineering Bldg. 5, 1001 Daxue Road, Hsinchu, 30010, Taiwan, ROC
- Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan, ROC
| | - Shey-Cherng Tzou
- Institute of Molecular Medicine and Bioengineering, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan, ROC
- Department of Biomedical Science and Environment Biology, and the Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan, ROC
| | - Chang-Mu Chen
- Department of Surgery, College of Medicine and Hospital, National Taiwan University, No. 7, Zhongshan South Road, Taipei, 10002, Taiwan, ROC.
| | - Li-Wei Ko
- International Ph.D. Program in Interdisciplinary Neuroscience (UST), College of Biological Science and Technology, National Yang Ming Chiao Tung University, 734, Engineering Bldg. 5, 1001 Daxue Road, Hsinchu, 30010, Taiwan, ROC.
- Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan, ROC.
- Institute of Electrical and Control Engineering, Department of Electronics and Electrical Engineering, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan, ROC.
- Department of Biomedical Science and Environment Biology, and the Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan, ROC.
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Gerdhem L, Charalampidis A, Gerdhem P. Patient-reported Data as Predictors of Surgical Outcome in Patients With Degenerative Cervical Myelopathy: Analysis of a National Multicenter Dataset. Spine (Phila Pa 1976) 2023; 48:113-119. [PMID: 36102544 DOI: 10.1097/brs.0000000000004469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/22/2022] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Retrospective study design on prospectively collected registry data. OBJECTIVE To investigate whether improvement after surgery for degenerative cervical myelopathy is associated with preoperative disease severity and to identify predictors of outcome. SUMMARY OF BACKGROUND DATA Degenerative cervical myelopathy is the most common cause of spinal cord compromise in adults and surgery is often the treatment of choice. Identifying predictors may help to improve patient selection. MATERIALS AND METHODS This nationwide study from the Swedish spine registry included 901 patients treated surgically for degenerative cervical myelopathy. To investigate improvement in different disease severity groups, the individuals were divided into quartiles based on their preoperative European Myelopathy Scale (EMS) and EuroQol-5 Dimension (EQ-5D) index. Statistical analyses were made with analysis of variance, χ 2 , McNemar, and t tests. Multivariable linear or logistic regression was used to identify predictors for one-year improvement in EMS and EQ-5D index, and satisfaction at one year. In the regressions, the patient-reported outcome measures were dichotomized at their median, except improvement in EMS. RESULTS All patient-reported outcome measures improved from baseline to the one-year follow-up ( P <0.001). Statistically significant outcome improvements were seen in all disease severity groups. Preoperative low EMS (β=-1.37, P <0.001), long walking distance (<500 vs. >500 m; β=0.44, P =0.030), and low NDI (β=-0.43, P =0.048) were independent predictors of improvement in EMS. R2 was 0.11 for the multivariable model. Preoperative low EQ-5D index (odds ratio=0.11; 95% confidence interval: 0.07-0.16) and low NDI (0.56; 0.36-0.88) were independent predictors of improvement in EQ-5D index. Preoperative high EMS (1.86; 1.20-2.90) and shorter arm pain duration [<12 vs. >12 months (0.54; 0.33-0.88)] were independent predictors of satisfaction. CONCLUSIONS Postoperative improvement was seen over the whole range of disease severity. Disease severity, symptom duration, and walking distance were predictors of outcome in patients treated surgically for degenerative cervical myelopathy. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Lovisa Gerdhem
- Department of Orthopaedics, Danderyd Hospital, Stockholm, Sweden
| | - Anastasios Charalampidis
- Clinical Science, Intervention, and Technology (CLINTEC), Karolinska Institute, Stockholm, Sweden
- Department of Reconstructive Orthopedics, Karolinska University Hospital, Sweden
| | - Paul Gerdhem
- Clinical Science, Intervention, and Technology (CLINTEC), Karolinska Institute, Stockholm, Sweden
- Department of Reconstructive Orthopedics, Karolinska University Hospital, Sweden
- Department of Orthopedics and Hand Surgery, Uppsala University Hospital, Sweden
- Department of Surgical Sciences, Uppsala University, Sweden
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Ruan Y, Chen W, Zhuang C, Lin H. Health-Related Perceptions of Older Adults/Patients with Degenerative Lumbar Diseases (ODLs) are associated with their Quality of Life: a Mixed-Methods Study. Patient Prefer Adherence 2021; 15:2303-2311. [PMID: 34675494 PMCID: PMC8518139 DOI: 10.2147/ppa.s328532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/24/2021] [Indexed: 11/23/2022] Open
Abstract
PURPOSE This study aimed to elucidate the quality of life of older adults/patients with degenerative lumbar diseases (ODLs) and analyse its association with some of their health-related perceptions. MATERIALS AND METHODS This mixed-methods study consisted of a questionnaire survey and an in-depth interview, which was designed within this study. ODLs were recruited from January 12, 2017 to June 27, 2018. The independent sample t-test and grounded theory coding method were employed for data analysis. RESULTS Of the 125 participants who returned valid questionnaires, 18 were included in the in-depth interviews. ODLs' quality of life was associated with the following health-related perceptions: "life barriers", "subjective health status", and "treatment outcomes" across the domains of physiology, psychology, social relations, and environment. CONCLUSION Our findings indicate that ODLs' quality of life is associated with their health-related perceptions. Thus, to improve older adults' quality of life, more attention should be paid to enhancing non-medical factors such as their health-related perceptions.
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Affiliation(s)
- Yuhui Ruan
- School of International and Public Affairs, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
| | - Weisin Chen
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Chenyang Zhuang
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, People’s Republic of China
| | - Hong Lin
- Department of Orthopaedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, People’s Republic of China
- Institute of Medical Science Popularization, Fudan University, Shanghai, People’s Republic of China
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Wang TY, Than KD. Commentary: Surgery for Degenerative Cervical Myelopathy: A Nationwide Registry-Based Observational Study With Patient-Reported Outcomes. Neurosurgery 2021; 89:E221-E222. [PMID: 34320192 DOI: 10.1093/neuros/nyab263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 11/12/2022] Open
Affiliation(s)
- Timothy Y Wang
- Department of Neurological Surgery, Duke University, Durham, North Carolina, USA
| | - Khoi D Than
- Department of Neurological Surgery, Duke University, Durham, North Carolina, USA
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