Suture constructs for rehabilitation using early active motion after tendon transfer surgery.

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Musculoskeletal Research

Background:

• Tendon transfers are crucial surgical procedures for restoring function.
• Optimizing suture constructs is essential for enabling early active range of motion post-surgery.
• Minimizing the risk of construct failure is paramount for successful patient outcomes.

Purpose of the Study:

• To define an ideal tendon transfer suture construct for early active range of motion.
• To evaluate the biomechanical properties of different suture techniques and materials in tendon repair.

Main Methods:

• A side-to-side tendon construct model was utilized.
• Suture techniques (cross stitch vs. Krackow stitch), number of throws, and suture caliber were systematically tested.
• A minimum load to failure of 100 N was established as the benchmark for early motion.

Main Results:

• All tested constructs, except the 4-0 Krackow stitch, met the 100 N load to failure requirement.
• The 3-0 non-absorbable suture demonstrated superior yield force characteristics compared to other tested configurations.
• Suture choice should consider surgeon preference, patient factors, and surgical specifics.

Conclusions:

• Most tested tendon transfer suture constructs provide adequate strength for early active motion.
• A 3-0 non-absorbable suture appears more suitable for tendon transfers regarding yield force.
• Further consideration of surgeon preference and patient compliance is advised when selecting suture constructs.