The effects of implant composition on extensor tenosynovitis in a canine distal radius fracture model
| Autor: | Brian W. Su, May Parisien, Stefano M. Sinicropi, Melvin P. Rosenwasser, Frank J. Raia, Robert J. Strauch |
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| Rok vydání: | 2005 |
| Předmět: |
medicine.medical_specialty
medicine.medical_treatment chemistry.chemical_element Dentistry Osteotomy Tendons Fracture Fixation Internal Dogs Alloys medicine Animals Orthopedics and Sports Medicine Titanium Tenosynovitis business.industry fungi technology industry and agriculture Titanium alloy Equipment Design Tendon rupture Stainless Steel equipment and supplies medicine.disease Tendon Surgery Radiography medicine.anatomical_structure chemistry Models Animal Female Distal radius fracture Implant Radius Fractures business Bone Plates |
| Zdroj: | The Journal of Hand Surgery. 30:300-307 |
| ISSN: | 0363-5023 |
| DOI: | 10.1016/j.jhsa.2004.08.004 |
| Popis: | Purpose Dorsal plating of distal radius fractures with titanium plates has resulted in clinically observed tenosynovitis and tendon rupture. The goal of this study was to investigate whether titanium-based implants result in more extensor tendon inflammation than matched stainless-steel implants in a canine fracture model. Methods An osteotomy was created in the distal radius of 18 beagles and fixed with 2.7-mm 4-hole plates composed of commercially pure titanium, titanium alloy (Ti-Al6-V4), or 316L stainless steel. Animals were killed at an average of 4 months. Tendon gliding was assessed by applying a force at the extensor musculotendinous junction and noting gliding. Histologic grading (mild, moderate, severe) was based on cellular hypertrophy, hyperplasia, and leukocytic infiltration. Results Tendons glided freely in 100% stainless-steel specimens, 75% of titanium alloy, and 43% of commercially pure titanium groups. A severe inflammatory reaction was identified in 60% of the titanium alloy (Ti-A16-V4) group, 57% of the pure titanium group, and 0% of the stainless-steel group. Conclusions Dorsal plating of the canine radius with commercially pure titanium or titanium alloy implants produced a greater inflammatory peritendinous response than matched stainless-steel implants. |
| Databáze: | OpenAIRE |
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