Impacts of postoperative changes of segmental mobility on neurological improvement after laminoplasty for cervical ossification of the posterior longitudinal ligament

Autor: Tetsuo Ohwada, Yamagishi Akira, Atsunori Ohnishi, Hironobu Sakaura
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Male
musculoskeletal diseases
medicine.medical_specialty
Decompression
medicine.medical_treatment
Radiography
Observational Study
Ossification of Posterior Longitudinal Ligament
range of motion
Myelopathy
Japan
Outcome Assessment
Health Care
medicine
Humans
laminoplasty
Range of Motion
Articular
mobile segment
Perioperative Period
Aged
Retrospective Studies
Neurologic Examination
business.industry
Instrumented fusion
Ossification of the posterior longitudinal ligament
Retrospective cohort study
General Medicine
medicine.disease
Laminoplasty
Decompression
Surgical
musculoskeletal system
Magnetic Resonance Imaging
Surgery
Spinal Fusion
Treatment Outcome
Cervical Vertebrae
Female
Range of motion
business
Tomography
X-Ray Computed
cervical ossification of the longitudinal ligament
Research Article
Zdroj: Medicine
ISSN: 1536-5964
0025-7974
Popis: Several studies have demonstrated that the dynamic factor at the mobile segment affects the severity of myelopathy in patients with cervical ossification of the posterior longitudinal ligament (C-OPLL), and posterior decompression supplemented with posterior instrumented fusion at the mobile segment provides good neurological improvement. However, there have been few reports of changes in range of motion at the mobile segment (segmental ROM) after laminoplasty (LP). The aim of this study was thus to retrospectively investigate changes in segmental ROM after LP and the impacts of these changes on neurological improvement in patients with C-OPLL. A total of 51 consecutive patients who underwent LP for C-OPLL since May 2010 and were followed for at least 2 years after surgery were included in this study. Neurological status was assessed using the Japanese Orthopaedic Association (JOA) score before surgery and at 2-year follow-up. Segmental ROM at the responsible level for myelopathy was measured preoperatively and at 2-year follow-up using lateral flexion-extension radiographs of the cervical spine. The mean JOA score improved significantly from 10.7 points preoperatively to 13.5 points at 2 years after surgery (mean recovery rate, 45.0%). The mean segmental ROM decreased significantly from 6.5 degrees before surgery to 3.2 degrees at 2 years after surgery. In the good clinical outcome group (recovery rate of the JOA score ≥50%; n = 22), the mean segmental ROM decreased significantly from 5.8 degrees preoperatively to 3.0 degrees postoperatively. It also decreased significantly from 7.1 degrees to 3.4 degrees in the poor clinical outcome group (recovery rate of the JOA score
Databáze: OpenAIRE
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