Fixation of greater tuberosity fractures: a biomechanical comparison of three techniques.

Charbel Ishak9
Estimated H-index: 9
,
Alexis S. Chiang2
Estimated H-index: 2
+ 3 AuthorsLaith M. Jazrawi37
Estimated H-index: 37
Source
Abstract
: The fixation of displaced greater tuberosity fractures with 5-0 Fiberwire, Fiberwire tape, and 5-0 Ethibond sutures was compared in 12 pairs of cadaveric humeri. A simulated fracture was created and fixed with suture in a figure-of-eight pattern. The tuberosity was cyclically loaded and its displacement measured. There was no statistical difference in fixation stability between the three suture types.
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#1Gernot Seppel (TUM: Technische Universität München)H-Index: 9
#2Tim Saier (TUM: Technische Universität München)H-Index: 16
Last. Stefan Buchmann (TUM: Technische Universität München)H-Index: 19
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Background Fractures of the humeral greater tuberosity (GT) are a frequent injury progressively treated with arthroscopic suture anchor repair. Yet, no biomechanical study has been performed comparing fixation strength of arthroscopic single- (SR) vs. double row (DR) fixation.
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#1Brian T. PalumboH-Index: 7
#2Sergio GutierrezH-Index: 13
Last. Mark A. MighellH-Index: 20
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Background: Locked plating of displaced proximal humerus fractures is a reliable fixation method. Greater tuberosity (GT) failure is a known complication that may occur in the early post-operative period. Despite postoperative immobilization, the rotator cuff continues to exert significant forces on fracture fragments. Our hypothesis is that suture augmentation will provide greater stability of the GT than locked plating alone. To prove this we developed a three-part proximal humerus fracture mo...
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#1Cinzia Gaudelli (UdeM: Université de Montréal)H-Index: 4
#2Jérémie MénardH-Index: 7
Last. Dominique M. Rouleau (UdeM: Université de Montréal)H-Index: 22
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Background This paper aims to determine the strongest fixation method for split type greater tuberosity fractures of the proximal humerus by testing and comparing three fixation methods: a tension band with No. 2 wire suture, a double-row suture bridge with suture anchors, and a manually contoured calcaneal locking plate. Methods Each method was tested on eight porcine humeri. A osteotomy of the greater tuberosity was performed 50° to the humeral shaft and then fixed according to one of three me...
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#1Cheng-Li Lin (NCKU: National Cheng Kung University)H-Index: 12
#2Chih-Kai Hong (NCKU: National Cheng Kung University)H-Index: 9
Last. Wei Ren Su (NCKU: National Cheng Kung University)H-Index: 14
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Suture anchors and screws are commonly used for fixation of humeral greater tuberosity (GT) fractures in either arthroscopic or open surgeries, but no biomechanical studies have been performed to compare the strength of fixation constructs using these two implants. This cadaveric study aimed to compare the biomechanical strength of three different fixation constructs in the management of GT fractures: Double-Row Suture Anchor Fixation (DR); Suture-Bridge Technique using suture anchors and knotle...
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#1J. FleischerH-Index: 1
#2A. SchleyerH-Index: 1
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Hintergrund Komplexe, nicht rekonstruierbare proximale Humerusfrakturen des alten Menschen stellen eine Indikation zur primaren Implantation einer Frakturprothese dar. Die Refixation der Tuberkula bleibt dabei einer der kritischen Punkte, der uber den Behandlungserfolg entscheidet.
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#1Konrad I. Gruson (NYU: New York University)H-Index: 10
#2David E. Ruchelsman (NYU: New York University)H-Index: 17
Last. Nirmal C. Tejwani (NYU: New York University)H-Index: 46
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Despite the relatively common occurrence of fractures of the proximal humerus amongst the elderly, the subgroup of isolated greater and lesser tuberosity fractures have remained less well understood. While the majority of two-part fractures result from a standing-height fall onto an outstretched hand, isolated tuberosity fractures are also commonly associated with glenohumeral dislocations or direct impact to the shoulder region. Inasmuch as isolated greater tuberosity fractures are considered u...
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#1Volker Braunstein (LMU: Ludwig Maximilian University of Munich)H-Index: 21
#2E. WiedemannH-Index: 1
Last. S. Hinterwimmer (LMU: Ludwig Maximilian University of Munich)H-Index: 8
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Abstract Background Fractures of the greater tuberosity of the humerus present with increasing frequency. However, no biomechanical data about the optimal fixation technique of greater tuberosity fractures is available. This biomechanical cadaver study compares the stability of three standard fixation techniques used for the treatment of greater tuberosity fractures of the proximal humerus. Methods In 21 fresh frozen proximal humeri, standardized fractures of the greater tuberosity were created....
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