Laminar closure after classic Hirabayashi open-door laminoplasty
| Autor: | Chang Ju Hwang, K. Daniel Riew, Choon Sung Lee, Soo-An Park, Nam Heun Kim, Dong Ho Lee, Yung-Tae Kim |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Male
Lamina Cord Time Factors medicine.medical_treatment Spinal Cord Diseases Postoperative Complications Restenosis Spinal cord compression Outcome Assessment Health Care medicine Humans Orthopedics and Sports Medicine Spinal canal Prospective Studies Radiculopathy Aged medicine.diagnostic_test business.industry Laminectomy Magnetic resonance imaging Middle Aged medicine.disease Laminoplasty Compression (physics) Magnetic Resonance Imaging medicine.anatomical_structure Cervical Vertebrae Female Neurology (clinical) Nuclear medicine business Tomography X-Ray Computed Spinal Canal Spinal Cord Compression Follow-Up Studies |
| Zdroj: | Spine. 36(25) |
| ISSN: | 1528-1159 |
| Popis: | STUDY DESIGN Prospective analysis of preoperative and postoperative radiological data. OBJECTIVE To assess the incidence and extent of laminar closure after Hirabayashi open-door laminoplasty, as determined by multi-detector computed tomography (CT), and to investigate the influence of this phenomenon on spinal cord compression, as shown by magnetic resonance imaging (MRI). SUMMARY OF BACKGROUND DATA Although laminar closure occurs after laminoplasty, little is known about its progression or its effect on restenosis of the spinal canal. METHODS Thirty-five patients (132 laminae) underwent classic Hirabayashi laminoplasty and were followed for at least 12 months. Multi-detector CT was performed preoperatively, at 1 week, or less, and 6 months after surgery. At each level, the anteroposterior (AP) diameter of the spinal canal and the angle of the opened lamina were measured. MRI was performed preoperatively and 1 year after surgery to evaluate the severity of cord compression based on a six-grade classification system. RESULTS The mean AP diameter and the mean opening angle increased immediately after surgery (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|