| Title: |
Comparison of five percutaneous pinning methods for unstable extra-articular distal radius fractures: A mechanical study using sawbones |
| Authors: |
Muratlı, Sedit Kıvanç; Uzun, Bora; Çelik, Salih |
| Publisher Information: |
Turkish Joint Diseases Foundation |
| Publication Year: |
2021 |
| Subject Terms: |
Biomechanics; Distal radius; Fracture; Percutaneous pinning; Sawbones; Three-pin; Two-pin |
| Description: |
Objectives: This study aims to mechanically compare five different extra-focal bi-cortical pin configurations (using two and three pins) employed for fixation of a simulated unstable extra-articular distal radius fracture with dorsal comminution using a sawbone model. Materials and methods: This in vitro mechanical study was conducted between June 2019 and July 2019. A standard fracture model (Arbeitsgemeinschaft für Osteosynthesefragen [AO] type 23-A3.3) was created using a fourth generation composite artificial radius bone. Five groups with two- and three-pin configurations were tested under axial, volar, and dorsal loading with a universal test device. Mean stiffness values were compared statistically. Results: Comparison of stiffness values from axial and volar loading tests between groups in paired comparison showed no statistically significant difference (p=0.194 and p=0.086, respectively). Dorsal loading tests showed statistically significant difference between the groups in pairwise comparison (p=0.002). Three-pin groups (Groups 3, 4, and 5) had higher stiffness values compared to two-pin groups (Groups 1 and 2) in dorsal loading tests (p=0.001). Three-pin configuration test groups with two divergent or convergent pins from the radial styloid performed better compared to both two-pin groups (p=0.01, p=0.002) in dorsal loading tests. Conclusion: Our data demonstrated that the three-pin configuration with two divergent or convergent Kirschner wires from the styloid and a third wire from the dorsal/ulnar cortex had higher stiffness values compared to two-pin configurations in dorsal loading tests. When indicated, we suggest the use of a three-pin construct. Particularly in cases with a risk of volar angulation, we recommend a three-pin configuration with two divergent or convergent bi-cortical Kirschner wires. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
Joint Diseases and Related Surgery; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; https://doi.org/10.5606/ehc.2021.75817; https://hdl.handle.net/20.500.12428/4293; 32; 51; 58; Q4; WOS:000608440400009; 418081 |
| DOI: |
10.5606/ehc.2021.75817 |
| Availability: |
https://hdl.handle.net/20.500.12428/4293; https://doi.org/10.5606/ehc.2021.75817 |
| Rights: |
info:eu-repo/semantics/openAccess ; Attribution-NonCommercial 3.0 United States ; http://creativecommons.org/licenses/by-nc/3.0/us/ |
| Accession Number: |
edsbas.B56C9019 |
| Database: |
BASE |