Treatment of proximal humerus greater tuberosity (GT) split type fracture with osteosynthesis plate systems appears to be the most efficient. However, osteosynthesis devices commonly used are not adapted to the dimensions involved since it encompasses the whole humerus. Moreover, this type of fracture has never been studied extensively.
The main purpose of this project is to propose an osteosynthesis plate device specifically adapted to the GT. For that, 3 specific objectives have been defined:
1 To describe geometrically and morphologically split type GT fracture,
2 To design a preliminary plate concept adapted to the GT,
3 To evaluate this concept according to the defined design criteria, and in terms of ability of adaptation.
To reach the three specific objectives, the first step was to study the GT split type fracture based on observational research principles. Then, the design of a preliminary concept has been done with the design software CATIA V5R21. This concept has finally been evaluated with a 3D printed prototype and finite element analyses.
GT split type fracture has been described in terms of dimensions and shape. Following the definition of design specifications, several concepts of solutions were subjected to a selection process leading to the definition of the final preliminary concept. The design of the concept has been evaluated against the design criteria, and the abilities of positioning and adaptation have been tested on a random humerus.
The objectives of this project have been fulfilled with the detailed definition of the GT split type fracture and the development of a preliminary concept of a viable osteosynthesis plate. However, improvements still need to be done to this concept. First, the screw hole design should be performed and the whole concept should be assessed against the appropriate standards. Second, a comprehensive mechanical analysis should be performed to assess the mechanical performance and safety of the device to complete the concept validation.
| Date | 6 Jun 2017 |
|---|
| Original language | French |
|---|
| Awarding Institution | - École de technologie supérieure
|
|---|
| Supervisor | Yvan Petit (Supervisor) |
|---|
Boaretto, Y. (Author),
Petit (Supervisor),
6 Jun 2017Student thesis: Master's thesis › Master in Engineering: Engineering