Efficacy of PEEK Cages and Plate Augmentation in Three-Level Anterior Cervical Fusion of Elderly Patients
Clinics in Orthopedic Surgery
; : 9-15, 2011.
Article
in En
| WPRIM
| ID: wpr-115537
Responsible library:
WPRO
ABSTRACT
BACKGROUND:
To evaluate the clinical efficacy of three-level anterior cervical arthrodesis with polyethyletherketone (PEEK) cages and plate fixation for aged and osteoporotic patients with degenerative cervical spinal disorders.METHODS:
Twenty one patients, who had undergone three-level anterior cervical arthrodesis with a cage and plate construct for degenerative cervical spinal disorder from November 2001 to April 2007 and were followed up for at least two years, were enrolled in this study. The mean age was 71.7 years and the mean T-score using the bone mineral density was -2.8 SD. The fusion rate, change in cervical lordosis, adjacent segment degeneration were analyzed by plain radiographs and computed tomography, and the complications were assessed by the medical records. The clinical outcomes were analyzed using the SF-36 physical composite score (PCS) and neck disability index (NDI).RESULTS:
Radiological fusion was observed at a mean of 12.3 weeks (range, 10 to 15 weeks) after surgery. The average angle of cervical lordosis was 5degrees preoperatively, 17.6degrees postoperatively and 16.5degrees at the last follow-up. Degenerative changes in the adjacent segments occurred in 3 patients (14.3%), but revision surgery was unnecessary. In terms of instrument-related complications, there was cage subsidence in 5 patients (23.8%) with an average of 2.8 mm, and loosening of the plate and screw occurred in 3 patients (14.3%) but there were no clinical problems. The SF-36 PCS before surgery, second postoperative week and at the last follow-up was 29.5, 43.1, and 66.2, respectively. The respective NDI was 55.3, 24.6, and 15.9.CONCLUSIONS:
For aged and osteoporotic patients with degenerative cervical spinal disorders, three-level anterior cervical arthrodesis with PEEK cages and plate fixation reduced the pseudarthrosis and adjacent segment degeneration and improved the clinical outcomes. This method is considered to be a relatively safe and effective treatment modality.Key words
Full text:
1
Index:
WPRIM
Main subject:
Radiculopathy
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Spinal Cord Diseases
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Spinal Diseases
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Spinal Fusion
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Biocompatible Materials
/
Severity of Illness Index
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Bone Plates
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Bone Screws
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Cervical Vertebrae
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Follow-Up Studies
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Aged
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Aged80
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Female
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Humans
/
Male
Language:
En
Journal:
Clinics in Orthopedic Surgery
Year:
2011
Type:
Article