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Use of titanium implants in pedicular screw fixation
N A Ebraheim1, R E Rupp, E R Savolaine
1Department of Orthopaedic Surgery, Medical College of Ohio, Toledo 43699.
Journal of Spinal Disorders
|December 1, 1994
Summary
Titanium pedicle screws offer improved imaging for lumbar spine fusion patients. This study found titanium implants effective for spinal fusion, with good outcomes and reduced imaging artifacts.
Area of Science:
- Orthopedics
- Spinal Surgery
- Biomaterials
Background:
- Traditional stainless steel pedicle screw systems impede MRI and CT imaging.
- A need exists for spinal fusion implants that allow for clear postoperative imaging.
Purpose of the Study:
- To evaluate the efficacy and safety of using titanium Alta systems for lumbar spine fusion.
- To assess the impact of titanium implants on postoperative imaging quality.
Main Methods:
- Retrospective review of 25 patients undergoing thoracic and lumbar fusion with titanium Alta screws and plates (1990-1992).
- Indications included metastatic tumor, fracture, spondylolisthesis, pseudoarthrosis, and postdecompressive instability.
- Clinical and radiographic outcomes, including fusion rates and implant integrity, were assessed.
Main Results:
- Solid fusion was achieved in 23 of 25 patients, with significant back pain reduction.
- Two patients with osteoporosis experienced implant loosening; one required revision surgery.
- Titanium implants facilitated high-quality MRI and reduced CT artifacts, improving postoperative evaluation.
Conclusions:
- Titanium pedicle screw systems are a viable option for lumbar spine fusion, offering excellent fusion rates and improved imaging.
- Careful patient selection, particularly in those with osteoporosis, is recommended.
- The use of titanium implants enhances diagnostic capabilities through artifact reduction in MRI and CT scans.