Study Design: A prospective cohort study.
Objective: This study aimed to investigate the relationship between preoperative cervical sagittal alignment and postoperative kyphosis in patients with cervical spondylotic myelopathy (CSM) and to determine the cut-off angle for predicting the postlaminoplasty kyphosis.
Summary Of Background Data: There have been several reports describing a cervical kyphosis after laminoplasty. However, there has been no study on the cut-off angle for predicting the postoperative kyphosis in a large series of patients with CSM.
Methods: A total of 1025 consecutive patients with CSM (642 men and 383 women; mean age, 64.4 yr; range, 23-93 yrs) who underwent laminoplasty were included. The average follow-up period was 30.0 months. Radiography was performed before the surgery and at final follow-up. The cervical alignment with neutral view was measured by using the Cobb method. An alignment of C2-7 lordotic angle more than 0° was defined as lordosis and C2-7 lordotic angle less than 0° was defined as kyphosis. The incidence of postoperative kyphosis was evaluated on lateral radiographs.
Results: In all patients, the mean C2-7 alignment in the neutral position was 11.5° lordotic before surgery and 14.2° lordotic at final follow-up. In the patient without preoperative kyphotic alignment, receiver operating characteristic curve of preoperative C2-7 lordotic angle showed 7° as a predictor for the postlaminoplasty kyphosis (area under the curve = 0.75, P < 0.0001). Among the preoperatively 720 patients with lordosis more than 7°, postoperative kyphosis was observed in 20 patients (2.8%), whereas in the preoperatively 191 patients with lordosis less than 7°, postoperative kyphosis was seen in 28 patients (14.7%).
Conclusion: The cut-off value of preoperative C2-7 lordotic angle for predicting the postlaminoplasty kyphosis was 7° in CSM patient without preoperative kyphotic alignment.
Level Of Evidence: 3.
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http://dx.doi.org/10.1097/BRS.0000000000003345 | DOI Listing |
Orthop Traumatol Surg Res
December 2024
Department for Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany. Electronic address:
Introduction: The treatment of early onset scoliosis (EOS) has seen significant advancements, particularly with the introduction of magnetically controlled growing rods (MCGR). However, a discrepancy between reported and actual rod lengthening during treatment has raised concerns.
Hypothesis: This retrospective study aims to investigate the disparity between reported and actual lengthening of MCGR and to identify factors contributing to the failure of the lengthening process.
Clin Neurol Neurosurg
December 2024
Case Western Reserve University School of Medicine, Cleveland, OH, United States; Department of Neurological Surgery, University Hospitals Cleveland Medical Center, Cleveland, OH, United States. Electronic address:
Background: Degenerative cervical myelopathy is one of the most common causes of spinal cord dysfunction. Cervical laminoplasty is an excellent surgical procedure that address the underlying pathology along with motion preservation with various advantages over other surgical options. While the advantages are intuitive and are being proven in multiple recent studies, concerns regarding failure still remains precluding wider utilization despite evidence to the contrary.
View Article and Find Full Text PDFSpine J
December 2024
Department of Orthopedics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan.
Background Context: The effect of romosozumab administration in patients undergoing corrective spinal fusion surgery has not yet been analyzed.
Purpose: To examine the effect of romosozumab administration on reducing the incidence of proximal junctional kyphosis (PJK), particularly PJK due to fractures (PJK-Fx), in patients undergoing spinal corrective fusion surgery.
Design: Retrospective cohort study PATIENT SAMPLE: A total of 111 patients aged >50 years underwent corrective fusion surgery (>2 vertebrae) for adult spinal deformity or vertebral compression fracture between June 2010 and July 2023.
Pak J Med Sci
December 2024
Prof. Dr. Asif Bashir, MD, FAANS, FACS Professor of Neurosurgery, Department of Neurosurgery Unit-I, Punjab Institute of Neurosciences, Lahore, Pakistan.
Objective: To compare correction of kyphotic deformity (KD) and implant failure (IF) in percutaneous short-segment pedicle screws fixation (SSPF) with index level versus long-segment pedicle screws fixation (LSPF) without index level for traumatic thoracolumbar (TL) fractures.
Methods: This prospective study comprised 56 patients who met the study's inclusion criteria from the Department of Neurosurgery at the Punjab Institute of Neurosciences in Lahore, Pakistan presented between June 2022 and May 2023. We separated them into two groups: Group-A and Group-B, each with 28 patients.
BMC Musculoskelet Disord
December 2024
Department of Orthopedics, Panyu Hospital of Chinese Medicine, Guangzhou, Guangdong, China.
Purpose: This study aims to identify the risk factors associated with bone cement loosening after percutaneous vertebroplasty/kyphoplasty (PVP/PKP) for osteoporotic vertebral compression fractures (OVCF) and to develop a clinical prediction model for bone cement loosening.
Methods: Clinical data of patients who underwent PVP/PKP for OVCF at Guangzhou Panyu Hospital from June 2017 to June 2021 were collected, with a division into loosening group and normal group based on postoperative follow-up imaging. Univariate analysis was conducted to explore the correlation between clinical data and bone cement loosening.
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