Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1994-6-24
|
pubmed:abstractText |
We measured the bone mineral content (BMC) of 21 human femoral autopsy specimens using Radiographic Attenuation Technique (RAT). The specimens were then tested for stiffness in a material-testing machine. Osteosynthesis was performed after medial femoral neck osteotomy, using 1 of 3 different pinning methods: 2 hook pins (LIH), 2 cannulated screws (Uppsala), and 3 cannulated screws (CHP). The specimens were allocated to each method by grouping them in triplets with similar BMC. Cyclic loading at 500-1000 N and 1 Hz was performed during 50 minutes. The amount of axial compression during loading was measured. Finally, loading to failure was done and post-fixation stiffness and ultimate compression strength recorded. With one exception, all cases failed where the BMC was less than 0.4 g/cm2. No differences between the methods of osteosynthesis were found. The fixation strength was mostly dependent on the strength of the bone, i.e., the degree of osteoporosis.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0001-6470
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
65
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
161-5
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:8197849-Aged,
pubmed-meshheading:8197849-Aged, 80 and over,
pubmed-meshheading:8197849-Biomechanics,
pubmed-meshheading:8197849-Bone Density,
pubmed-meshheading:8197849-Bone Nails,
pubmed-meshheading:8197849-Bone Screws,
pubmed-meshheading:8197849-Elasticity,
pubmed-meshheading:8197849-Female,
pubmed-meshheading:8197849-Femoral Neck Fractures,
pubmed-meshheading:8197849-Fracture Fixation, Internal,
pubmed-meshheading:8197849-Humans,
pubmed-meshheading:8197849-Male,
pubmed-meshheading:8197849-Materials Testing,
pubmed-meshheading:8197849-Middle Aged,
pubmed-meshheading:8197849-Osteotomy
|
pubmed:year |
1994
|
pubmed:articleTitle |
Bone mineral content and fixation strength of femoral neck fractures. A cadaver study.
|
pubmed:affiliation |
Department of Orthopedics, East Hospital, Göteborg, Sweden.
|
pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
|