Lumbar spinal canal stenosis
Conditions
Interventions
None listed
Sponsors
Hokkaido University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: The inclusion criteria were cases which underwent laminoplasty for lumbar spinal canal stenosis without segmental instability, which is defined by less than 3 mm of translation in flexion extension radiographs. 20 to 100 years old.
Exclusion criteria
Exclusion criteria: The exclusion criteria were cases which underwent laminoplasty for degenerative scoliosis with a Cobb angle more than 20 degrees, osteolytic spinal diseases, and adjacent segmental disease secondary to spinal fusion surgeries.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| postoperative 2 year Kelgren and Lawrence score increment 2 year D score increment 2 year IVD height decrement an increase in active flexion extension angles at the surgical levels Logistic regression analyses or multiple regression analysis were performed to assess whether surgical group was significant for the 2 year KL score increment, D score increment, and DH decrement adjusting for surgical level, age, sex, each comorbidity, and smoking history. We determined the occurrence or deterioration i.e., incidence of instabilityat the surgical level two years after surgery. The Japanese Orthopaedic Association Back Pain Evaluation Questionnaire was used for symptom based disability assessments before surgery and one and two years after surgery in single level laminoplasty. Logistic regression analysis was performed to determine whether the kissing spine was a significant factor for the radiographic and symptom based disability outcomes. Surgical time, intraoperative hemorrhage, and levels of change in laboratory data within the postoperative seven days were compared between groups in single level laminoplasty. | — |
Countries
Japan
Contacts
Public ContactTakashi Ohnishi
Hokkaido University Hospital Department of Orthopaedic Surgery
Outcome results
None listed