We have located links that may give you full text access.
Comparative Study
Journal Article
Sagittal alignment of the cervical spine after the laminoplasty.
Spine 2007 November 2
STUDY DESIGN: Prospective study.
OBJECTIVE: To identify the impact of laminoplasty on range of motion (ROM) and sagittal alignment of the cervical spine.
SUMMARY OF BACKGROUND DATA: Cervical laminoplasty is an effective procedure decompressing multilevel spinal cord compression. Preoperative lordosis of the cervical spine is a prerequisite for laminoplasty, and maintaining postoperative lordosis is also important for decompression of the spinal cord.
MATERIALS AND METHODS: Eighty-five patients who planned open door laminoplasty from C3-C7 were studied. Preoperative diagnosis included myelopathy cases associated with cervical spondylosis in 52, ossification of posterior longitudinal ligament in 29, and multilevel disc herniation in 4 cases. Cervical spine lateral radiography in neutral, flexion, and extension were taken before surgery and at 2-year follow-up. The cervical lordosis or kyphosis was measured by the Cobb's method. Diagnosis, degree of preoperative lordosis in the neutral position, and degree of preoperative sagittal alignment in flexion and extension were studied as risk factors for postoperative kyphosis.
RESULTS: ROM was decreased 30.5% after laminoplasty. The mean preoperative lordosis in the neutral position was 16.2 degrees and postoperative lordosis was 11.4 degrees. Kyphosis (mean, 12.2 degrees) was observed in 9 patients (10.6%) after surgery. All of them had been diagnosed as myelopathy cases associated with cervical spondylosis. The preoperative lordotic angle was significantly smaller in the kyphotic group than in the lordotic group. In the kyphotic group, preoperative flexion was 10.2 degrees larger and extension was 10.3 degrees smaller than in the lordotic group. The kyphotic group showed 19.3 degrees of kyphosis in flexion and 8.7 degrees of lordosis in extension before surgery.
CONCLUSION: ROM of the cervical spine decreased by 30.5% after laminoplasty. Kyphosis was developed in 10.6% of the patients. The preoperative factors affecting postoperative kyphosis are diagnosis of myelopathy cases associated with cervical spondylosis, a lordosis angle of <10 degrees, and a kyphotic angle during flexion that is larger than a lordotic angle during extension.
OBJECTIVE: To identify the impact of laminoplasty on range of motion (ROM) and sagittal alignment of the cervical spine.
SUMMARY OF BACKGROUND DATA: Cervical laminoplasty is an effective procedure decompressing multilevel spinal cord compression. Preoperative lordosis of the cervical spine is a prerequisite for laminoplasty, and maintaining postoperative lordosis is also important for decompression of the spinal cord.
MATERIALS AND METHODS: Eighty-five patients who planned open door laminoplasty from C3-C7 were studied. Preoperative diagnosis included myelopathy cases associated with cervical spondylosis in 52, ossification of posterior longitudinal ligament in 29, and multilevel disc herniation in 4 cases. Cervical spine lateral radiography in neutral, flexion, and extension were taken before surgery and at 2-year follow-up. The cervical lordosis or kyphosis was measured by the Cobb's method. Diagnosis, degree of preoperative lordosis in the neutral position, and degree of preoperative sagittal alignment in flexion and extension were studied as risk factors for postoperative kyphosis.
RESULTS: ROM was decreased 30.5% after laminoplasty. The mean preoperative lordosis in the neutral position was 16.2 degrees and postoperative lordosis was 11.4 degrees. Kyphosis (mean, 12.2 degrees) was observed in 9 patients (10.6%) after surgery. All of them had been diagnosed as myelopathy cases associated with cervical spondylosis. The preoperative lordotic angle was significantly smaller in the kyphotic group than in the lordotic group. In the kyphotic group, preoperative flexion was 10.2 degrees larger and extension was 10.3 degrees smaller than in the lordotic group. The kyphotic group showed 19.3 degrees of kyphosis in flexion and 8.7 degrees of lordosis in extension before surgery.
CONCLUSION: ROM of the cervical spine decreased by 30.5% after laminoplasty. Kyphosis was developed in 10.6% of the patients. The preoperative factors affecting postoperative kyphosis are diagnosis of myelopathy cases associated with cervical spondylosis, a lordosis angle of <10 degrees, and a kyphotic angle during flexion that is larger than a lordotic angle during extension.
Full text links
Related Resources
Trending Papers
Challenges in Septic Shock: From New Hemodynamics to Blood Purification Therapies.Journal of Personalized Medicine 2024 Februrary 4
Molecular Targets of Novel Therapeutics for Diabetic Kidney Disease: A New Era of Nephroprotection.International Journal of Molecular Sciences 2024 April 4
Perioperative echocardiographic strain analysis: what anesthesiologists should know.Canadian Journal of Anaesthesia 2024 April 11
The 'Ten Commandments' for the 2023 European Society of Cardiology guidelines for the management of endocarditis.European Heart Journal 2024 April 18
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app