Document Detail


Resurfacing elbow prosthesis: shape and sizing of the humeral component.
MedLine Citation:
PMID:  4033099     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The sizing and dimensioning of a new unconstrained elbow prosthesis makes use of a geometric axis for humeral articulating surface definition, an axis which is precisely positioned with respect to extra-articular anatomical landmarks. The geometry of the joint was determined by a slicing and digitization technique. It was found that for the humerus an axisymmetric surface is evident and that there exists a centroidal axis which is mostly linear except for a portion at the posterior lateral flange of the trochlea. Sizing studies were carried out on dry bone anatomical specimens and, using a standardized X-ray technique, on the elbows of volunteer subjects. Seven dimensions were chosen for statistical analysis of the joint. A multi-variate normal distribution model, using only the first principal component was found to account for 70% of the variance; components 2 and 3 explained a further 19%. From this analysis, one series of three and five sizes of prosthetic dimensions were established for 95% overall coverage of population.
Authors:
H W Wevers; D W Siu; L H Broekhoven; C Sorbie
Related Documents :
197499 - Bone-to-bone, joint-to-bone and joint-to-joint ratios in normal and diseased skeletal s...
19631069 - Radiographic-based grading methods and radiographic measurement of joint space width in...
1376629 - Meniscus-like synovial fold in the atlantoaxial (c1-c2) joint.
3731569 - Does generalised articular hypermobility predispose to generalised osteoarthritis?
17657399 - Anthropometric characteristics of wrists joint surfaces depending on lunate types.
8746379 - Hallux valgus due to cuneiform-metatarsal instability.
16810309 - Insufficiency of pth action on bone in uremia.
16869109 - Cost analysis of osteoporotic hip fractures.
19291669 - Computer-assisted therapy in orbital and mid-facial reconstructions.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biomedical engineering     Volume:  7     ISSN:  0141-5425     ISO Abbreviation:  J Biomed Eng     Publication Date:  1985 Jul 
Date Detail:
Created Date:  1985-10-24     Completed Date:  1985-10-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7906074     Medline TA:  J Biomed Eng     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  241-6     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Biomedical Engineering
Biometry
Computers
Elbow Joint* / anatomy & histology
Humans
Humerus / anatomy & histology
Joint Prosthesis*
Prosthesis Design

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Laser Doppler measurements of blood flow in skin tissue.
Next Document:  Digital sampling rate and ECG analysis.