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Krackow Suture Technique Effect on Patella Tendon Vascularity: Quantitative MRI Analysis
Brian J Page1, Trenton T Stevens2, Kathryn A Barth1
1Department of Orthopaedic Surgery, Hospital for Special Surgery, NewYork-Presbyterian Hospital/Weill Cornell, New York, NY.
Journal of Orthopaedic Trauma
|March 2, 2023
Summary
The Krackow suture technique does not significantly impact patellar tendon vascularity. This study found minimal, non-significant decreases in arterial contributions after using the Krackow stitch for tendon repair.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Radiology
Background:
- Patellar tendon injuries often require surgical repair.
- The Krackow suture technique is a common method for tendon repair.
- Assessing the impact of surgical techniques on tendon vascularity is crucial for healing.
Purpose of the Study:
- To evaluate the effect of the Krackow suture technique on patellar tendon vascularity.
- To determine if Krackow stitch placement compromises blood supply to the patellar tendon.
Main Methods:
- Six cadaveric knee specimens were used in a paired comparison.
- Quantitative magnetic resonance imaging (MRI) with contrast was performed pre- and post-suture.
- Latex infusion and anatomical dissection were used to assess vascularity.
Main Results:
- No statistically significant difference in overall arterial contributions to the patellar tendon was found.
- A small, non-significant decrease (7.5%) in arterial contribution was observed after Krackow suture placement.
- Minor, non-significant regional decreases in vascularity were noted in specific tendon areas.
Conclusions:
- The Krackow suture technique does not significantly affect patellar tendon vascularity.
- The technique appears safe regarding arterial perfusion, with only minor, non-significant changes observed.
