Search
Drill holes decrease cancellous bone strength: A comparative study of 33 paired osteoporotic human and 9 paired artificial bone samples
Abstract
This study was designed to compare compressive strength of cancellous bone retrieved from the femoral head in a specimen with and without guide wire hole, with comparison to synthetic bone samples. Femoral heads retrieved from 33 patients who sustained femoral neck fractures and underwent hip arthroplasty were cut into cuboids leaving two matching samples from the same femoral head. Similar samples were prepared from synthetic femurs. One of the matching samples was chosen at random and was drilled with a guide wire for cancellous screws. The uniaxial compression tests of bone blocks were carried out using the Zwick-Roell Z020 strength testing machine. The mean loss of sample cross section area due to drilling was 24%. The force at failure in drilled specimens was significantly smaller by 18% in human (median: 26%) and by 25% in synthetic bone (median 27%). The strength of human specimens was almost 2 times greater, and their stiffness nearly 4 times greater than in synthetic samples. The study shows that the weakening of the bone after drilling is roughly proportional to the loss of sample cross section area. The percentage decrease in strength was similar in human and artificial bone, but human samples were stronger and stiffer. The comparison shows that forces measured in biomechanical studies on artificial bone cannot be directly attributed to humans, but the relative differences in mechanical properties of synthetic samples after some damage may be accurate and resemble that of human bones.
Citations
-
3
CrossRef
-
0
Web of Science
-
3
Scopus
Authors (6)
-
Marcin Ceynowa
-
Rafał Pankowski
-
Marek Rocławski
-
Tomasz Mazurek dr hab. nauk med.
Cite as
Full text
- Publication version
- Accepted or Published Version
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
PLOS ONE
no. 15,
ISSN: 1932-6203 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Ceynowa M., Żerdzicki K., Kłosowski P., Pankowski R., Rocławski M., Mazurek T.: Drill holes decrease cancellous bone strength: A comparative study of 33 paired osteoporotic human and 9 paired artificial bone samples// PLOS ONE -Vol. 15,iss. 10 (2020),
- DOI:
- Digital Object Identifier (open in new tab) 10.1371/journal.pone.0241143
- Verified by:
- Gdańsk University of Technology
seen 172 times
Recommended for you
Tensile modulus of human orbital wall bones cut in sagittal and coronal planes
- K. Żerdzicki,
- P. Lemski,
- P. Kłosowski
- + 3 authors
Effect of lag screw on stability of first metatarsophalangeal joint arthrodesis with medial plate
- K. Daszkiewicz,
- M. Rucka,
- K. Czuraj
- + 2 authors