[Biomechanical investigation on refixation of tuberosities on shoulder prostheses. Does refixation with different suture materials offer enough stability?].

Der Unfallchirurg
J FleischerS J Hopp

Abstract

Elderly patients suffering from complex, non-reconstructable fractures of the proximal humerus are commonly treated by primary implantation of a shoulder endoprosthesis. One of the most critical factors for success or failure of treatment is still the refixation of the tuberosities. Using sheep infraspinatus tendons with attached tuberosities three different suture materials were investigated. For 2 of the suture materials 4 tests were accomplished and 5 tests were carried out for the third suture material. A material testing machine was used to perform cyclic loading tests (20 mm/min, Fmin=50 N, Fmax=100 N, respectively after 50 cycles: Fmax+50 N until failure). The results showed large variations in the average maximum forces (152.4 N for suture 1, 219.9 N for suture 2 and 452.3 N for suture 3). All tests showed a high initial lengthening and caused incision-like defects in the bone or tendon and led to failure and high displacement of the tuberosities. Due to these results suture materials have a limited usefulness for refixation of tuberosities as an increased risk of obstruction for bony consolidation can result.

References

Aug 26, 1998·The Orthopedic Clinics of North America·L A HartsockR J Friedman
Oct 3, 1999·Der Unfallchirurg·P Habermeyer, T Ebert
Aug 2, 2001·Der Orthopäde·G Heers, M E Torchia
Oct 18, 2001·The Journal of Bone and Joint Surgery. British Volume·C M BonoA S Levy
Jan 5, 2002·Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen·A Rüter
Oct 16, 2002·Journal of Shoulder and Elbow Surgery·Mark A FrankleWilliam E Lee
Mar 7, 2003·Journal of Orthopaedic Trauma·Mehmet DemirhanYilmaz Akalin
Mar 30, 2004·The Journal of Bone and Joint Surgery. British Volume·F KralingerH Resch
Oct 4, 2006·The Journal of Bone and Joint Surgery. American Volume·Sara L EdwardsBradley R Merk
Nov 1, 2006·The Journal of Bone and Joint Surgery. British Volume·R B Abu-RajabI G Kelly
Oct 13, 2007·Journal of Shoulder and Elbow Surgery·Christian FialkaVilmos Vécsei
Oct 27, 2007·Der Orthopäde·D LiemJ Steinbeck
Feb 8, 2008·The Journal of Bone and Joint Surgery. British Volume·A SosnaV Pinskerová
Mar 25, 2008·The American Journal of Sports Medicine·Leslie J BissonMark T Ehrensberger
Apr 17, 2008·Journal of Biomechanical Engineering·Takashi YanagawaMarcus G Pandy

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Citations

Dec 15, 2010·Operative Orthopädie und Traumatologie·Michael Pfeiffer

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