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Mechanical analysis of tendon suture techniques

D P Greenwald¹, H Z Hong, J W May

¹Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Boston.

The Journal of Hand Surgery

|July 1, 1994

Summary

The augmented Becker repair technique demonstrated superior strength and toughness for calcaneus tendon repair compared to other methods. This novel method showed significant gains in strength over time in vivo.

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Area of Science:

Orthopedic Surgery
Biomechanical Engineering
Regenerative Medicine

Background:

Tendon repair is crucial for restoring function after injury.
Evaluating the mechanical properties of different tendon repair techniques is essential for optimizing clinical outcomes.
Existing methods vary in strength and healing potential.

Purpose of the Study:

To compare the mechanical strength and toughness of seven different tendon repair techniques.
To evaluate a novel augmented Becker repair technique against established methods.
To assess the in vivo healing and strength progression of tendon repairs.

Main Methods:

Fifty-seven rabbit calcaneus tendons were transected and repaired using seven distinct techniques.
Mechanical testing (strength and toughness) was performed at immediate repair (time 0).
In vivo repairs were assessed at 2 and 4 weeks using mechanical testing and gap formation measurements.

Main Results:

The augmented Becker repair was significantly stronger and tougher than all other techniques at time 0.
Kessler repairs weakened at 2 weeks, while the augmented Becker repair maintained strength.
The augmented Becker repair demonstrated significant strength gains by 4 weeks in vivo, outperforming all other methods.

Conclusions:

The augmented Becker repair technique offers superior initial strength and durability for calcaneus tendon repair.
This novel technique shows promising in vivo healing and strength development over time.
The augmented Becker repair represents a significant advancement in tendon repair methodology.

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