Posterior Suture Passing for Latarjet Bone Block Fixation

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Solution Overview

Problem

Current Latarjet or bone block procedures require costly and bulky posterior glenoid drill guides and disposable drills/sleeves for passing endobuttons and sutures, increasing the risk of surgical site infection and post-surgical complications due to the complexity of the procedure.

Innovation Solution

A method for passing endobuttons and sutures through the glenoid from a posterior approach without the need for posterior drill guides and disposable drills/sleeves, using an anterior approach with a pin and flexible member to secure the graft or implant, reducing the number of surgical tools and simplifying the procedure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional posterior drill guides and disposable drills/sleeves are used to pass endobuttons and sutures, then the suture passing function is achieved, but the device complexity and cost increase, and the risk of surgical site infection increases

Engineering Contradiction:
Improverisk of surgical site infectionVSAvoidnumber of surgical tools
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the posterior drill guide and disposable drills/sleeves from the surgical procedure. By drilling from the anterior approach and passing the suture through the glenoid without these posterior tools, the invention removes the sources of complexity and infection risk while maintaining the essential suture passing function

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The anterior drilling approach serves multiple functions: it creates the necessary hole in the glenoid, provides a pathway for the suture, and eliminates the need for separate posterior drilling tools. This multi-functional approach reduces the overall number of tools required in the procedure

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If posterior drill guides and disposable drills/sleeves are used, then suture passing is enabled, but the procedure time and complexity increase

Engineering Contradiction:
Improveprocedure efficiencyVSAvoidnumber of surgical tools
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

By removing the posterior drill guide and disposable drills/sleeves from the procedure, the invention streamlines the workflow and reduces the time required for tool setup and manipulation, thereby improving procedure efficiency

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of drilling from the posterior approach as in traditional methods, the invention inverts the approach by drilling from the anterior side. This reversal simplifies the procedure by eliminating the need for complex posterior access tools and reduces overall procedure time

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS12102315B2Methods for passing a posterior button suture for medical procedures
Publication Date: 2024.10.01 SMITH & NEPHEW ORTHOPAEDICS
  • US12102315B2 patent drawing
  • US12102315B2 patent drawing
  • US12102315B2 patent drawing

AI summary

Methods for suspension fixation most applicable for a Latarjet of bone block procedure are performed using an open surgery with an anterior approach. The method passes endobuttons and sutures through the glenoid from posterior without the need of a posterior drill guide and disposable drill/sleeve. As an alternative embodiment, a passing pin with a slot at the advancing end may be used to further reduce surgical steps. The passing pin may be advanced and exit the muscle, and the suture loop may be directly attached to the pin rather than a secondary shuttle suture and then retrieved anteriorly.