A A Karaarslan1, N Acar2, Y Örgen3, H Aycan3, F Ertem4, E Sesli3. 1. Department of Orthopaedics and Traumatology, Faculty of Medicine, Şifa University, Sanayi St. No: 7, Bornova, 35040, Izmir, Turkey. aakaraarslan@yahoo.com. 2. Department of Orthopaedics and Traumatology, Catalca Ilyas Cokay Hospital, Catalca, 34540, Istanbul, Turkey. 3. Department of Orthopaedics and Traumatology, Faculty of Medicine, Şifa University, Sanayi St. No: 7, Bornova, 35040, Izmir, Turkey. 4. Department of Biomechanics, Faculty of Medicine, Dokuz Eylul University, Inciralti, 34340, Izmir, Turkey.
Abstract
PURPOSE: Inter-fragmentary rotational and axial instabilities are major challenges in nailing of complex or comminuted fractures. We aimed to compare the inter-fragmentary rotational and axial stability of novel anti-rotation interlocking nail and the conventional interlocking nail in complex or comminuted femur shaft fractures. METHODS: Twenty composite femurs were divided into two groups, 30 mm was resected from the mid-portion of all composite femurs. The inter-fragmentary rotational and axial stabilities were assessed. RESULTS: Between 10-N m external and 6-N m internal rotation torques, mean maximum inter-fragmentary rotational arc motion in the novel nails was 1.63 mm and 291 % less than that of the conventional nails (6.38 mm, P = 0.000). Between 150 N distraction and 2300 N compression, mean axial motion in the novel nails was 0.8 mm and 257 % less than that of the conventional nails (2.86 mm, p = 0.000). CONCLUSION: An anti-rotational novel nail is superior to the conventional interlocking nail in terms of maximum inter-fragmentary rotational and axial stabilities in complex and comminuted femur shaft fractures.
PURPOSE: Inter-fragmentary rotational and axial instabilities are major challenges in nailing of complex or comminuted fractures. We aimed to compare the inter-fragmentary rotational and axial stability of novel anti-rotation interlocking nail and the conventional interlocking nail in complex or comminuted femur shaft fractures. METHODS: Twenty composite femurs were divided into two groups, 30 mm was resected from the mid-portion of all composite femurs. The inter-fragmentary rotational and axial stabilities were assessed. RESULTS: Between 10-N m external and 6-N m internal rotation torques, mean maximum inter-fragmentary rotational arc motion in the novel nails was 1.63 mm and 291 % less than that of the conventional nails (6.38 mm, P = 0.000). Between 150 N distraction and 2300 N compression, mean axial motion in the novel nails was 0.8 mm and 257 % less than that of the conventional nails (2.86 mm, p = 0.000). CONCLUSION: An anti-rotational novel nail is superior to the conventional interlocking nail in terms of maximum inter-fragmentary rotational and axial stabilities in complex and comminuted femur shaft fractures.
Authors: Dirk Wähnert; Yves Stolarczyk; Konrad L Hoffmeier; Michael J Raschke; Gunther O Hofmann; Thomas Mückley Journal: Int Orthop Date: 2011-11-30 Impact factor: 3.075
Authors: Alexander C M Chong; Elizabeth A Friis; Gregory P Ballard; Peter J Czuwala; Francis W Cooke Journal: Ann Biomed Eng Date: 2007-03-28 Impact factor: 3.934
Authors: Mustafa Citak; Daniel Kendoff; Michael J Gardner; Markus Oszwald; Padhraig F O'Loughlin; Lucien C Olivier; Christian Krettek; Tobias Hüfner; Musa Citak Journal: Technol Health Care Date: 2009 Impact factor: 1.285