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Arthroscopically insertable force probes in the rotator cuff in vivo
Peter Reilly1, Anthony M J Bull, Andrew A Amis
1Department of Orthopaedic Surgery, Imperial College of Science Technology, St. Mary's Hospital, London, England. pre4093965@aol.com
Summary
Scientists can now collect in vivo rotator cuff loading data using the Arthroscopically Insertable Force Probe (AIFP). This study details a novel technique for its safe insertion and retrieval from the subscapularis tendon.
Area of Science:
- Orthopedics
- Biomechanics
- Surgical Innovation
Background:
- Understanding in vivo rotator cuff loading is crucial for shoulder research and clinical practice.
- Existing methods for measuring tendon forces are limited.
- The Arthroscopically Insertable Force Probe (AIFP) presents a potential solution for in vivo data collection.
Purpose of the Study:
- To describe a technique for the arthroscopic insertion and retrieval of the AIFP.
- To evaluate the feasibility of collecting dynamic subscapularis tendon loading data in human subjects.
Main Methods:
- The technique was first validated in a cadaveric model.
- The AIFP was arthroscopically inserted into the subscapularis tendon of three volunteers.
- Dynamic loading data was collected after the resolution of interscalene block anesthesia.
Main Results:
- The AIFP was successfully inserted and retrieved from the subscapularis tendon in all volunteers.
- Dynamic subscapularis tendon loading data was collected.
- No complications were reported during the insertion or retrieval procedures.
Conclusions:
- The described technique enables safe and effective in vivo measurement of subscapularis tendon loading using the AIFP.
- This method provides valuable data for shoulder biomechanics and clinical applications.
- Further research can utilize this technique to investigate rotator cuff function.