Mini Tightrope Fixation Versus Ligament Reconstruction - Tendon Interposition for Maintenance of Post-trapeziectomy Space Height: A Biomechanical Study

The Journal of Hand Surgery
Alexander W HookeSanjeev Kakar

Abstract

To test the biomechanical stability of ligament reconstruction and tendon interposition (LRTI) compared with Mini TightRope fixation for thumb metacarpal subsidence after trapeziectomy. Fifteen fresh human cadaveric hands underwent trapeziectomy and were divided into 3 treatment groups: LRTI using a biotenodesis screw and single versus dual Mini TightRope fixation. The thumb and index fingers were removed distal to the metacarpal; the distal ends of the metacarpals and proximal radius were potted in urethane resin and mounted onto a servohydraulic testing machine. A cyclic axial load was applied to stress the trapezial cavity. We recorded displacement of the first metacarpal via the position of the actuator head and computed the size of the trapezial space as the difference of the initial size and first metacarpal displacement. Each specimen underwent cyclical loading until the first metacarpal had collapsed completely onto the scaphoid (failure of the repair) or until 6 hours of testing had been completed. The number of cycles to failure, change in the size of the trapezium cavity, and relative change in size of the trapezium cavity were determined. The trapezial space had completely closed before 6 hours of testing were compl...Continue Reading

References

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May 17, 2006·Hand Clinics·Matthew M Tomaino
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Mar 6, 2012·The Journal of Hand Surgery·Mohammed Khalid, Matthew L Jones
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Dec 3, 2014·The Journal of Hand Surgery·Ryan D Endress, Sanjeev Kakar
Dec 30, 2014·The Journal of Hand Surgery·Joshua Alan Parry, Sanjeev Kakar

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Citations

Jul 12, 2018·JBJS Reviews·Michael B GottschalkSanjeev Kakar
Sep 7, 2018·Hand : Official Journal of the American Association for Hand Surgery·Brent R DeGeorgeSanjeev Kakar
Apr 20, 2018·Hand : Official Journal of the American Association for Hand Surgery·Beatrice L GrasuRaymond A Wittstadt
Feb 2, 2021·Handchirurgie, Mikrochirurgie, plastische Chirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft für Handchirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft für Mikrochirurgie der Peripheren Nerven und Gefässe : Organ der Vereinigung der Deut·Ali CavitHaluk Özcanli

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