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Article: Finite Element Analysis of porously punched prosthetic short stem virtually designed for simulative uncemented Hip Arthroplasty

TitleFinite Element Analysis of porously punched prosthetic short stem virtually designed for simulative uncemented Hip Arthroplasty
Authors
KeywordsUncemented short stem
Porously punched prosthesis
Artificial joint replacement
Contact stress
Finite Element Analysis
Issue Date2017
PublisherBioMed Central Ltd. The Journal's web site is located at http://www.biomedcentral.com/bmcmusculoskeletdisord/
Citation
BMC Musculoskeletal Disorders, 2017, v. 18 n. 1, p. 295 How to Cite?
AbstractBackground There is no universal hip implant suitably fills all femoral types, whether prostheses of porous short-stem suitable for Hip Arthroplasty is to be measured scientifically. Methods Ten specimens of femurs scanned by CT were input onto Mimics to rebuild 3D models; their *stl format dataset were imported into Geomagic-Studio for simulative osteotomy; the generated *.igs dataset were interacted by UG to fit solid models; the prosthesis were obtained by the same way from patients, and bored by punching bears designed by Pro-E virtually; cements between femora and prosthesis were extracted by deleting prosthesis; in HyperMesh, all compartments were assembled onto four artificial joint style as: (a) cemented long-stem prosthesis; (b) porous long-stem prosthesis; (c) cemented short-stem prosthesis; (d) porous short-stem prosthesis. Then, these numerical models of Finite Element Analysis were exported to AnSys for numerical solution. Results Observed whatever from femur or prosthesis or combinational femora-prostheses, “Kruskal-Wallis” value p > 0.05 demonstrates that displacement of (d) ≈ (a) ≈ (b) ≈ (c) shows nothing different significantly by comparison with 600 N load. If stresses are tested upon prosthesis, (d) ≈ (a) ≈ (b) ≈ (c) is also displayed; if upon femora, (d) ≈ (a) ≈ (b) < (c) is suggested; if upon integral joint, (d) ≈ (a) < (b) < (c) is presented. Conclusions Mechanically, these four sorts of artificial joint replacement are stabilized in quantity. Cemented short-stem prostheses present the biggest stress, while porous short-stem & cemented long-stem designs are equivalently better than porous long-stem prostheses and alternatives for femoral-head replacement. The preferred design of those two depends on clinical conditions. The cemented long-stem is favorable for inactive elders with osteoporosis, and porously punched cementless short-stem design is suitable for patients with osteoporosis, while the porously punched cementless short-stem is favorable for those with a cement allergy. Clinically, the strength of this study is to enable preoperative strategy to provide acute correction and decrease procedure time.
Persistent Identifierhttp://hdl.handle.net/10722/259421
ISSN
2015 Impact Factor: 1.684
2015 SCImago Journal Rankings: 0.881

 

DC FieldValueLanguage
dc.contributor.authorPeng, MJ-
dc.contributor.authorChen, HY-
dc.contributor.authorHu, Y-
dc.contributor.authorJu, X-
dc.contributor.authorBai, B-
dc.date.accessioned2018-09-03T04:07:09Z-
dc.date.available2018-09-03T04:07:09Z-
dc.date.issued2017-
dc.identifier.citationBMC Musculoskeletal Disorders, 2017, v. 18 n. 1, p. 295-
dc.identifier.issn1471-2474-
dc.identifier.urihttp://hdl.handle.net/10722/259421-
dc.description.abstractBackground There is no universal hip implant suitably fills all femoral types, whether prostheses of porous short-stem suitable for Hip Arthroplasty is to be measured scientifically. Methods Ten specimens of femurs scanned by CT were input onto Mimics to rebuild 3D models; their *stl format dataset were imported into Geomagic-Studio for simulative osteotomy; the generated *.igs dataset were interacted by UG to fit solid models; the prosthesis were obtained by the same way from patients, and bored by punching bears designed by Pro-E virtually; cements between femora and prosthesis were extracted by deleting prosthesis; in HyperMesh, all compartments were assembled onto four artificial joint style as: (a) cemented long-stem prosthesis; (b) porous long-stem prosthesis; (c) cemented short-stem prosthesis; (d) porous short-stem prosthesis. Then, these numerical models of Finite Element Analysis were exported to AnSys for numerical solution. Results Observed whatever from femur or prosthesis or combinational femora-prostheses, “Kruskal-Wallis” value p > 0.05 demonstrates that displacement of (d) ≈ (a) ≈ (b) ≈ (c) shows nothing different significantly by comparison with 600 N load. If stresses are tested upon prosthesis, (d) ≈ (a) ≈ (b) ≈ (c) is also displayed; if upon femora, (d) ≈ (a) ≈ (b) < (c) is suggested; if upon integral joint, (d) ≈ (a) < (b) < (c) is presented. Conclusions Mechanically, these four sorts of artificial joint replacement are stabilized in quantity. Cemented short-stem prostheses present the biggest stress, while porous short-stem & cemented long-stem designs are equivalently better than porous long-stem prostheses and alternatives for femoral-head replacement. The preferred design of those two depends on clinical conditions. The cemented long-stem is favorable for inactive elders with osteoporosis, and porously punched cementless short-stem design is suitable for patients with osteoporosis, while the porously punched cementless short-stem is favorable for those with a cement allergy. Clinically, the strength of this study is to enable preoperative strategy to provide acute correction and decrease procedure time.-
dc.languageeng-
dc.publisherBioMed Central Ltd. The Journal's web site is located at http://www.biomedcentral.com/bmcmusculoskeletdisord/-
dc.relation.ispartofBMC Musculoskeletal Disorders-
dc.rightsBMC Musculoskeletal Disorders. Copyright © BioMed Central Ltd.-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectUncemented short stem-
dc.subjectPorously punched prosthesis-
dc.subjectArtificial joint replacement-
dc.subjectContact stress-
dc.subjectFinite Element Analysis-
dc.titleFinite Element Analysis of porously punched prosthetic short stem virtually designed for simulative uncemented Hip Arthroplasty-
dc.typeArticle-
dc.identifier.emailHu, Y: yhud@hku.hk-
dc.identifier.authorityHu, Y=rp00432-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1186/s12891-017-1651-9-
dc.identifier.hkuros289691-
dc.identifier.volume18-
dc.identifier.issue1-
dc.identifier.spage295-
dc.identifier.epage295-
dc.publisher.placeUnited Kingdom-

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