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Bioabsorbable vs. titanium screws for first tarsometatarsal joint arthrodesis: An in-vitro study
- Source :
- J Clin Orthop Trauma
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- BACKGROUND: The TMT-1 joint arthrodesis is a common repair for severe hallux valgus. Two crossing interfragmental screws, usually titanium or steel, and a locking plate or a plate with a compression screw are the most common fixation methods for first TMT joint arthrodesis. The qualities of an ideal fixation material include adequate strength and rigidity, biocompatibility, lack of interference with bone healing, lack of visibility and palpability, and a low risk of surgical removal. We sought to determine whether bioabsorbable cannulated screws would perform as well as titanium screws in anatomical models. METHODS: Identical anatomical TMT-1 arthrodesis was created with a saw by making a straight cut in 30 anatomical models (Sawbone®). The bioabsorbable and titanium screws were placed one at a time in exactly the same location in each model according to careful measurements. All 30 models were analyzed with a material testing machine (MTS Insight 30, Eden Prairie, USA). Each model was oriented 15° to the platform to simulate its position to the ground during mid-stance. RESULTS: In the single-cycle load-to-failure test, the mean yield load was 61.4 N ± 5.7 N (range, 50.1 N–70.3 N) in the bioabsorbable screw group and 81.2 N ± 12 N (range, 61.7 N–113.4 N) in the titanium screw group (P
- Subjects :
- Orthodontics
030222 orthopedics
biology
business.industry
Arthrodesis
medicine.medical_treatment
chemistry.chemical_element
Bone healing
Biomechanical testing
biology.organism_classification
03 medical and health sciences
Fixation (surgical)
Valgus
0302 clinical medicine
chemistry
In vitro study
Medicine
Orthopedics and Sports Medicine
030212 general & internal medicine
business
First tarsometatarsal joint
Research Article
Titanium
Subjects
Details
- ISSN :
- 09765662
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Journal of Clinical Orthopaedics and Trauma
- Accession number :
- edsair.doi.dedup.....7aeb7a63e4cbc69605888b0347b8ce9f