Biomaterial Database

[Dynamic force resistance of different osteosynthetic procedures in pertrochanteric femoral fractures (author's transl)]. 1977

H D Sauer, and H Schöttle, and K H Jungbluth

In a comparative experimental study stability of different extra- and intramedullar methods of osteosynthesis for stable and unstable pertrochanteric fractures has been examined under dynamical stress. For the treatment of stable pertrochanteric fractures in old patients the intramedullar methods of osteosynthesis (nailing by Ender of Küntscher) were shown to be biomechanically superior. Extramedullar osteosyntheses (130 degrees and 95 degrees angled plate) also guaranteed very high stability; under permanent stress however angled plates showed metal fatigue. In case of unstable pertrochanteric fractures the osteosyntheses with additional application of bone cement produced sufficient stability under permanent stress. The importance of reconstructing a stable medial support for the biomechanics of osteosynthetic materials was emphasized. According to our results especially the combination of 95 degrees angle-plates with bone cement permits immediate mobilisation of old patients in case of unstable pertrochanteric fractures.

UI	MeSH Term	Description	Entries
D001858	Bone Nails	Rods of bone, metal, or other material used for fixation of the fragments or ends of fractured bones.	Bone Pins,Bone Nail,Bone Pin,Nail, Bone,Nails, Bone,Pin, Bone,Pins, Bone
D001860	Bone Plates	Implantable fracture fixation devices attached to bone fragments with screws to bridge the fracture gap and shield the fracture site from stress as bone heals. (UMDNS, 1999)	Bone Plate,Plate, Bone,Plates, Bone
D005593	Fracture Fixation, Internal	The use of internal devices (metal plates, nails, rods, etc.) to hold the position of a fracture in proper alignment.	Osteosynthesis, Fracture,Fixation, Internal Fracture,Fixations, Internal Fracture,Fracture Fixations, Internal,Fracture Osteosyntheses,Fracture Osteosynthesis,Internal Fracture Fixation,Internal Fracture Fixations,Osteosyntheses, Fracture
D005594	Fracture Fixation, Intramedullary	The use of nails that are inserted into bone cavities in order to keep fractured bones together.	Intramedullary Nailing,Nailing, Intramedullary,Osteosynthesis, Fracture, Intramedullary,Fixation, Intramedullary Fracture,Fixations, Intramedullary Fracture,Fracture Fixations, Intramedullary,Intramedullary Fracture Fixation,Intramedullary Fracture Fixations,Intramedullary Nailings,Nailings, Intramedullary
D006620	Hip Fractures	Fractures of the FEMUR HEAD; the FEMUR NECK; (FEMORAL NECK FRACTURES); the trochanters; or the inter- or subtrochanteric region. Excludes fractures of the acetabulum and fractures of the femoral shaft below the subtrochanteric region (FEMORAL FRACTURES).	Femoral Trochlear Fractures,Intertrochanteric Fractures,Subtrochanteric Fractures,Trochanteric Fractures,Trochlear Fractures, Femur,Femoral Trochlear Fracture,Femur Trochlear Fracture,Femur Trochlear Fractures,Fracture, Femoral Trochlear,Fracture, Femur Trochlear,Fractures, Femoral Trochlear,Fractures, Femur Trochlear,Fractures, Hip,Fractures, Intertrochanteric,Fractures, Subtrochanteric,Fractures, Trochanteric,Trochlear Fracture, Femoral,Trochlear Fracture, Femur,Trochlear Fractures, Femoral
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000367	Age Factors	Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.	Age Reporting,Age Factor,Factor, Age,Factors, Age
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D001696	Biomechanical Phenomena	The properties, processes, and behavior of biological systems under the action of mechanical forces.	Biomechanics,Kinematics,Biomechanic Phenomena,Mechanobiological Phenomena,Biomechanic,Biomechanic Phenomenas,Phenomena, Biomechanic,Phenomena, Biomechanical,Phenomena, Mechanobiological,Phenomenas, Biomechanic
D013314	Stress, Mechanical	A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.	Mechanical Stress,Mechanical Stresses,Stresses, Mechanical