Biomechanics of the Gazi type pelvis external skeletal fixator

1997-01-01
Korkusuz, Feza
Kaymak, O
Citipitioglu, E
Akkas, N
External skeletal fixation is an alternative method of treatment to conventional therapy and open surgical procedures in pelvis fractures. The appropriate type of frame and the configuration of the connecting bars of these fixators are under investigation. In the Gazi type pelvis external fixator (GPEF) which has been developed, a 70 degrees angulation is applied to the connecting bars of the anterior quadrangular frame. This configuration, which is expected to improve the stability of the posterior column of the pelvis, was evaluated biomechanically on a phantom with various types of pelvic fractures and separations. The results suggest that the GPEF effectively controls anterior column pelvis fractures such as unilateral pubic ramus fractures, unilateral ischium pubis rami fractures and symphysis pubis separations under vertical loads. The fixator is partially capable of stabilizing the posterior column; however, loads above 700 N cause separation at the fracture site. Further studies and clinical trials are essential to determine the GPEF's effectiveness in reducing blood loss and in providing stability at the posterior column.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE

Suggestions

Biomechanics of porous ceramic implants used in long-bones segmental defect healing
Balçık, Cenk; Tokdemir, Turgut; Korkusuz, Feza; Department of Engineering Sciences (2002)
Reconstruction of bone in segmental defect is a challenging orthopedic application in which nonunion is seen due to loss of tissue and atrophic bonding inability. Calcium and phosphate based ceramics are the new generation of bone grafts to be used in large segmental defects as they show excellent biocompatibility, biodegradability and osteoconductivity. Ideal ceramic composition, configuration and material property compatible to cortical bone is yet to be determined. It is hypothesized that long-bones segm...
Etiology of senile osteoporosis - A hypothesis
Atik, O. Sahap; Uslu, M. Murad; Eksioglu, Fatih; Satana, Tolgay (Ovid Technologies (Wolters Kluwer Health), 2006-02-01)
Osteoporosis is a major health problem characterized by compromised bone strength predisposing patients to an increased risk of fracture. It may cause morbidity and mortality in elderly men and women. The etiologic factors that lead to senile osteoporosis still are unclear.
Multiwalled Carbon Nanotube- Poly(2-Hydroxyethyl Methacrylate) Composite Conduitfor Peripheral Nerve Repair
Arslantunalı, Damla; Arslantunalı Şahin, Damla; Department of Biotechnology (2012)
There are different methods used in the surgical treatment of peripheral nerve injury. In this respect, end-to-end surgical reconnection of the damaged nerve ends or autologous nerve grafts are applied as soon as possible after the injury. When autologous tissue transplant is considered, there are some medical devices available generally for relatively short nerve defects. As a solution for this problem, different tissue engineered nerve conduits have been developed. In the current study, a pHEMA hydrogel m...
Relation between mechanical stiffness and vibration transmission of fracture callus: an experimental study on rabbit tibia
Akkus, O; Korkusuz, F; Akın, Serhat; Akkas, N (1998-01-01)
It has been suggested that the vibration transmission across a fracture is affected by the stages of healing of the fracture callus. This study aims to correlate the change in vibration transmission with mechanical stiffness of the callus measured by three-point bending. The right tibiae of male, three-month old local albino rabbits were osteotomized and stabilized by intramedullary fixation following open reduction. The intramedullary rods were removed on the 15th, 28th, 42nd and 90th days postoperatively ...
Improvement of bioactivity with dual bioceramic incorporation to nanofibrous PCL scaffolds
Altunordu, Gercem; Tezcaner, Ayşen; Evis, Zafer; Keskin, Dilek (2023-03-01)
Bone tissue injuries, diseases or related clinical interventions require bone tissue engineering (BTE) approaches for regeneration of large bone defects, especially for compromised situations. Most BTE applications in literature focused on composites of polymers with a single type of bioceramic. However, native bone matrix has various inorganic components. Accordingly, this study aimed to investigate the use of dual bioceramics in BTE scaffolds prepared by wet-electrospinning of Poly-caprolactone (PCL) and ...
Citation Formats
F. Korkusuz, O. Kaymak, E. Citipitioglu, and N. Akkas, “Biomechanics of the Gazi type pelvis external skeletal fixator,” PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART H-JOURNAL OF ENGINEERING IN MEDICINE, pp. 401–409, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56917.