Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion
Objective Anterior cervical discectomy and fusion (ACDF) and laminoplasty (LP) are the most commonly performed procedures for degenerative cervical spondylosis. Cervical sagittal alignment (CSA) has recently been studied as an important predictor of clinical and radiological outcomes. The data from...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Korean Spinal Neurosurgery Society
2018-03-01
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| Series: | Neurospine |
| Subjects: | |
| Online Access: | http://www.e-neurospine.org/upload/pdf/ns-1834864-432.pdf |
| _version_ | 1797332800290947072 |
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| author | Su Hun Lee Dong Wuk Son Jun Seok Lee Dong Ha Kim Soon Ki Sung Sang Weon Lee Geun Sung Song |
| author_facet | Su Hun Lee Dong Wuk Son Jun Seok Lee Dong Ha Kim Soon Ki Sung Sang Weon Lee Geun Sung Song |
| author_sort | Su Hun Lee |
| collection | DOAJ |
| description | Objective Anterior cervical discectomy and fusion (ACDF) and laminoplasty (LP) are the most commonly performed procedures for degenerative cervical spondylosis. Cervical sagittal alignment (CSA) has recently been studied as an important predictor of clinical and radiological outcomes. The data from previous studies are insufficient for analysis using the recently designed CSA parameters, T1 slope (T1s), and T1s minus cervical angle (T1sCA). Methods We retrospectively collected data from patients who underwent ACDF and LP from January 2013 to May 2016. The CSA parameters included CA, sagittal vertical axis, T1s, and T1sCA. T1sCA values were used to evaluate the preoperative cervical balance (T1sCA>20°: imbalance). Clinical results were evaluated using the neck disability index (NDI) and recovery rate (RR) according to the Japanese Orthopedic Association scoring system. Results We analyzed the data of 72 patients (ACDF, n=39; LP, n=33). Imbalance on ACDF was associated with an increase in CA (balance: preoperative [PRE], 15.64° → follow-up [F/U], 15.74°, p=0.953; imbalance: PRE, −1.14° → F/U, 8.045°, p=0.008), whereas balance on LP was associated with a significant decrease in CA (balance: PRE, 16.26°→ F/U, 11.59°, p=0.009; imbalance: PRE, 5.36°→ F/U, 2.38°, p=0.249). No significant difference was found in the RR and NDI changes in the ACDF group based on balance, but a significant difference was found in RR in the LP group (balance: 61.65%±19.88%, imbalance: 46.90%±15.71%, p=0.046). Conclusion We found a significant difference in postoperative alignment in cases of ACDF and LP according to preoperative cervical sagittal balance. The postoperative clinical results of the LP group were more affected by F/U alignment than by the degree of alignment change. |
| first_indexed | 2024-03-08T07:53:34Z |
| format | Article |
| id | doaj.art-3896226eeaf64763bb9592ecf6bf0a66 |
| institution | Directory Open Access Journal |
| issn | 2586-6583 2586-6591 |
| language | English |
| last_indexed | 2024-03-08T07:53:34Z |
| publishDate | 2018-03-01 |
| publisher | Korean Spinal Neurosurgery Society |
| record_format | Article |
| series | Neurospine |
| spelling | doaj.art-3896226eeaf64763bb9592ecf6bf0a662024-02-02T14:21:55ZengKorean Spinal Neurosurgery SocietyNeurospine2586-65832586-65912018-03-011519110010.14245/ns.1834864.432787Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and FusionSu Hun Lee0Dong Wuk Son1Jun Seok Lee2Dong Ha Kim3Soon Ki Sung4Sang Weon Lee5Geun Sung Song6 Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea Department of Neurosurgery, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, KoreaObjective Anterior cervical discectomy and fusion (ACDF) and laminoplasty (LP) are the most commonly performed procedures for degenerative cervical spondylosis. Cervical sagittal alignment (CSA) has recently been studied as an important predictor of clinical and radiological outcomes. The data from previous studies are insufficient for analysis using the recently designed CSA parameters, T1 slope (T1s), and T1s minus cervical angle (T1sCA). Methods We retrospectively collected data from patients who underwent ACDF and LP from January 2013 to May 2016. The CSA parameters included CA, sagittal vertical axis, T1s, and T1sCA. T1sCA values were used to evaluate the preoperative cervical balance (T1sCA>20°: imbalance). Clinical results were evaluated using the neck disability index (NDI) and recovery rate (RR) according to the Japanese Orthopedic Association scoring system. Results We analyzed the data of 72 patients (ACDF, n=39; LP, n=33). Imbalance on ACDF was associated with an increase in CA (balance: preoperative [PRE], 15.64° → follow-up [F/U], 15.74°, p=0.953; imbalance: PRE, −1.14° → F/U, 8.045°, p=0.008), whereas balance on LP was associated with a significant decrease in CA (balance: PRE, 16.26°→ F/U, 11.59°, p=0.009; imbalance: PRE, 5.36°→ F/U, 2.38°, p=0.249). No significant difference was found in the RR and NDI changes in the ACDF group based on balance, but a significant difference was found in RR in the LP group (balance: 61.65%±19.88%, imbalance: 46.90%±15.71%, p=0.046). Conclusion We found a significant difference in postoperative alignment in cases of ACDF and LP according to preoperative cervical sagittal balance. The postoperative clinical results of the LP group were more affected by F/U alignment than by the degree of alignment change.http://www.e-neurospine.org/upload/pdf/ns-1834864-432.pdfCervical vertebraeLaminoplastySpinal fusion |
| spellingShingle | Su Hun Lee Dong Wuk Son Jun Seok Lee Dong Ha Kim Soon Ki Sung Sang Weon Lee Geun Sung Song Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion Neurospine Cervical vertebrae Laminoplasty Spinal fusion |
| title | Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion |
| title_full | Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion |
| title_fullStr | Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion |
| title_full_unstemmed | Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion |
| title_short | Differences in Cervical Sagittal Alignment Changes in Patients Undergoing Laminoplasty and Anterior Cervical Discectomy and Fusion |
| title_sort | differences in cervical sagittal alignment changes in patients undergoing laminoplasty and anterior cervical discectomy and fusion |
| topic | Cervical vertebrae Laminoplasty Spinal fusion |
| url | http://www.e-neurospine.org/upload/pdf/ns-1834864-432.pdf |
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