Mohsen Rostami1,2,3, Navid Moghadam1,3, Ibrahim Obeid4, Morteza Faghih Jouibari2, Mohammad Zarei5, Mersad Moosavi3, Alireza Khoshnevisan2, Farzin Farahbakhsh1,2, Fatemeh Moosaie1, Saeid Ehteshami6, Alireza Borghei7, Milad Shafizadeh2, Ramin Kordi1, Masoud Khadivi3. 1. Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran. 2. Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran. 3. Spine Center of Excellence, Yas Hospital, Tehran University of Medical Sciences, Tehran, Iran. 4. Orthopedic Spinal Surgery Unit 1, Pellegrin Hospital, Bordeaux Cedex, France. 5. Department of Orthopedics, Imam Hospital, Tehran University of Medical Sciences, Tehran, Iran. 6. Orthopedic Research Center, Mazandaran University of Medical Sciences, Sari, Iran. 7. Department of Neurosurgery, Rush University Medical Center, Chicago, Illinois.
Abstract
BACKGROUND: This study examines the changes in segmental and global cervical sagittal parameters after single-level anterior cervical discectomy and fusion (ACDF) in patients with cervical radiculopathy or myelopathy. We also investigate whether these changes have any relation with postoperative pain and functional outcome of the patients. METHODS: Sixty patients (37 females and 23 males) with a mean age of 45.9 ± 9.5 years who were candidates of single-level ACDF due to cervical myelopathy or radiculopathy participated in the study. At baseline, 1 month, and 6 months after ACDF, outcomes of the study including sagittal balance parameters, pain intensity, and Neck Disability Index (NDI) were measured among the patients. Intensity of pain and neck disability were measured using the visual analog scale (VAS) and validated version of NDI, respectively. Using a standard lateral cervical radiography, the Cobb angle for occiput-C2, C1-C2, and C2-C7 as well as operation-level angle (OA; Cobb's angle at the level of discopathy), the thoracic inlet angle, and C7 and T1 slope angles were measured. RESULTS: The intensity of pain and neck disability of patients improved significantly during the follow up of the study comparing with baseline measurements (P < .001). There was a significant correlation between the increase of C2-C7 angle, C1-C2 angle, and OA and improvement in neck pain and NDI at 1- and 6-month follow ups. CONCLUSIONS: We found that changes at C2-C7 angle, C1-C2 angle, and OA have positive significant correlation with clinical outcome including pain improvement and decrease of disability in patients who undergo ACDF. LEVEL OF EVIDENCE: 3. CLINICAL RELEVANCE: The results of this study might be beneficial in selection of cervical cages with appropriate size during ACDF surgery, as our findinds showed that larger cages could lead to better functional outcome in patients. This manuscript is generously published free of charge by ISASS, the International Society for the Advancement of Spine Surgery.
BACKGROUND: This study examines the changes in segmental and global cervical sagittal parameters after single-level anterior cervical discectomy and fusion (ACDF) in patients with cervical radiculopathy or myelopathy. We also investigate whether these changes have any relation with postoperative pain and functional outcome of the patients. METHODS: Sixty patients (37 females and 23 males) with a mean age of 45.9 ± 9.5 years who were candidates of single-level ACDF due to cervical myelopathy or radiculopathy participated in the study. At baseline, 1 month, and 6 months after ACDF, outcomes of the study including sagittal balance parameters, pain intensity, and Neck Disability Index (NDI) were measured among the patients. Intensity of pain and neck disability were measured using the visual analog scale (VAS) and validated version of NDI, respectively. Using a standard lateral cervical radiography, the Cobb angle for occiput-C2, C1-C2, and C2-C7 as well as operation-level angle (OA; Cobb's angle at the level of discopathy), the thoracic inlet angle, and C7 and T1 slope angles were measured. RESULTS: The intensity of pain and neck disability of patients improved significantly during the follow up of the study comparing with baseline measurements (P < .001). There was a significant correlation between the increase of C2-C7 angle, C1-C2 angle, and OA and improvement in neck pain and NDI at 1- and 6-month follow ups. CONCLUSIONS: We found that changes at C2-C7 angle, C1-C2 angle, and OA have positive significant correlation with clinical outcome including pain improvement and decrease of disability in patients who undergo ACDF. LEVEL OF EVIDENCE: 3. CLINICAL RELEVANCE: The results of this study might be beneficial in selection of cervical cages with appropriate size during ACDF surgery, as our findinds showed that larger cages could lead to better functional outcome in patients. This manuscript is generously published free of charge by ISASS, the International Society for the Advancement of Spine Surgery.
Authors: Jason C Eck; S Craig Humphreys; Tae-Hong Lim; Soon Tack Jeong; Jesse G Kim; Scott D Hodges; Howard S An Journal: Spine (Phila Pa 1976) Date: 2002-11-15 Impact factor: 3.468
Authors: Justin K Scheer; Jessica A Tang; Justin S Smith; Frank L Acosta; Themistocles S Protopsaltis; Benjamin Blondel; Shay Bess; Christopher I Shaffrey; Vedat Deviren; Virginie Lafage; Frank Schwab; Christopher P Ames Journal: J Neurosurg Spine Date: 2013-06-14
Authors: Savvas L Spanos; Ioannis D Siasios; Vassilios G Dimopoulos; Konstantinos N Paterakis; Dimos S Mastrogiannis; Theofanis P Giannis; Aggeliki A Fotiadou; John Pollina; Kostas N Fountas Journal: J Clin Med Res Date: 2018-01-26