Wedge-Shaped Osteotomy Implant Tibia Stabilization
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Solution Overview
Problem
Open wedge osteotomies in knee surgery are procedurally challenging due to difficulties in creating precise wedge-like openings in the tibia with minimal trauma to surrounding tissues and stabilizing the bone segments during healing.
Innovation Solution
A method and apparatus for performing open wedge high tibial osteotomy using a positioning guide, slope guide, keyhole drill guide, and wedge-shaped implant to accurately form and stabilize the osteotomy cut, minimizing tissue damage and ensuring precise alignment and stabilization of the tibia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a wedge-like opening is created in the tibia using conventional methods, then the osteotomy can be performed to adjust knee geometry, but the surrounding soft and neurological tissues are traumatized
Solution Approach 1:
A reamer is introduced as an intermediary tool to create the wedge-like opening in the tibia. The reamer allows precise control over the osteotomy geometry while minimizing direct trauma to surrounding soft and neurological tissues through its controlled rotational cutting action and protective guidance structures
2Stability of the object's composition
If the tibia is stabilized after osteotomy, then the bone segments remain in position during healing, but the stabilization process is procedurally challenging
Solution Approach 1:
The reamer and osteotomy apparatus are designed to perform stabilization functions as part of the same procedure. The reamer creates the osteotomy opening while simultaneously guiding the formation of the wedge-like structure, reducing the need for separate stabilization steps and simplifying the overall procedural complexity
Data Source
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AI summary
An osteotomy implant for disposition In a wedge shaped osteotomy opening In a bone, the Implant comprising a body for disposition within the wedge-shaped osteotomy opening In the bone and supporting the bone while healing occurs, at least one key formed integral with the body for stabilizing the body relative to the adjacent bone while healing occurs, and at least one fenestration extending through the body for permitting bone growth through the implant. An osteotomy implant for disposition in a wedge shaped osteotomy opening in a bone, the implant comprising a body for disposition within the wedge-shaped osteotomy opening in the bone and supporting the bone while healing occurs, and at least one key formed integral with the body for stabilizing the body relative to the adjacent bone while healing occurs.