Suture Loop Bone Screw Assembly for Stifle Joint Repair
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical procedures for repairing the stifle (front knee joint) in dogs are inadequate in terms of durability and effectiveness.
Innovation Solution
A method involving bone screws and a suture loop assembly, where bone screws are inserted into the stifle bones and a suture loop is used to engage the screws, distributing tension to enhance the repair's stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional suture methods are used for cranial cruciate ligament repair, then the surgical procedure is simpler, but the durability and effectiveness of the repair is insufficient
Solution Approach 1:
The suture assembly is divided into multiple functional segments: a suture loop portion that engages the bone screws, a tension member for securing, and a suture tail for knotting. This segmentation allows each component to perform its specific function optimally, improving overall repair durability while maintaining manageable complexity through modular design
Solution Approach 2:
The suture tail is inserted through the lumen of the suture loop and engaged within the lumen, creating a nested structure. The tension member is then engaged to the suture loop, forming a compact integrated assembly. This nesting reduces the overall profile and ensures proper positioning of components during surgery
2Stability of the object's composition
If bone screws are used to fasten sutures in the stifle joint, then the stability of the repair is improved, but the complexity of the surgical procedure increases
Solution Approach 1:
The bone screws serve multiple functions: they provide anchorage in the bone, act as a guide for suture loop placement, and serve as a structural framework for the entire repair assembly. This multi-functionality reduces the need for additional specialized components, maintaining stability while managing overall system complexity
Solution Approach 2:
The suture loop is pre-formed with the tension member and tail engaged in specific configurations before implantation. The suture tail is预先 inserted through the lumen and the tension member is预先 engaged to the suture loop, so that during surgery the assembly can be quickly positioned and secured to the bone screws without complex intraoperative manipulation
Data Source
AI summary
A method of repairing a stifle, including a first stifle bone and a second stifle bone in engaged opposition to the first stifle bone. The method begins with screwing a first bone screw into the first stifle bone and screwing a second bone screw, having an aperture in its shank, into the second stifle bone. Next, a tension member is used to pull a suture loop, to engage a portion of the suture loop about the shank of the first bone screw. Then, the tension member is used to pull the suture loop through the aperture of the second bone screw and then into engagement about the shank of the second bone screw.