Dual energy X-ray absorptiometry analysis of peri-prosthetic stress shielding in the Birmingham resurfacing hip replacement.

Hdl Handle:
http://hdl.handle.net/10147/208883
Title:
Dual energy X-ray absorptiometry analysis of peri-prosthetic stress shielding in the Birmingham resurfacing hip replacement.
Authors:
Harty, J A; Devitt, B; Harty, L C; Molloy, M; McGuinness, A
Affiliation:
Department of Orthopaedic Surgery, Cork University Hospital, The Mews, 61, Serpentine Ave, Ballsbridge, Dublin 4, Ireland. jaharty@hotmail.com
Citation:
Arch Orthop Trauma Surg. 2005 Dec;125(10):693-5. Epub 2005 Oct 20.
Journal:
Archives of orthopaedic and trauma surgery
Issue Date:
3-Feb-2012
URI:
http://hdl.handle.net/10147/208883
DOI:
10.1007/s00402-005-0059-4
PubMed ID:
16237532
Abstract:
INTRODUCTION: Numerous reports in the literature refer to the femoral neck fracture rate in hip resurfacing. The aim of this study was to determine the bone mineral density and evidence of stress shielding around the femoral component of the Birmingham resurfacing prosthesis. MATERIAL AND METHODS: Twenty-eight patients with primary unilateral osteoarthritis had a Birmingham resurfacing prosthesis. DEXA analysis of the proximal femur and femoral neck was performed and compared with the opposite unaffected side. RESULTS: Total periprosthetic bone mineral density was 0.49% greater than the control, but this did not achieve statistical significance. Although the BMD of the femoral neck was slightly increased on the prosthetic side (1.002 g/cm2) as opposed to the control side, this difference did not reach statistical significance. CONCLUSION: The Birmingham resurfacing prosthesis does not appear to reduce femoral neck bone mineral density in comparison to the normal femoral neck bone density. We conclude that femoral neck fractures are unlikely to be due to stress shielding related to the prosthesis.
Language:
eng
MeSH:
*Absorptiometry, Photon; Arthroplasty, Replacement, Hip/*instrumentation; *Bone Density; Femur Head/radiography; Femur Neck/radiography; *Hip Prosthesis; Humans; Middle Aged; Orthopedic Procedures/*instrumentation; Osteoarthritis, Hip/radiography/surgery; Stress, Mechanical
ISSN:
0936-8051 (Print); 0936-8051 (Linking)

Full metadata record

DC FieldValue Language
dc.contributor.authorHarty, J Aen_GB
dc.contributor.authorDevitt, Ben_GB
dc.contributor.authorHarty, L Cen_GB
dc.contributor.authorMolloy, Men_GB
dc.contributor.authorMcGuinness, Aen_GB
dc.date.accessioned2012-02-03T15:06:24Z-
dc.date.available2012-02-03T15:06:24Z-
dc.date.issued2012-02-03T15:06:24Z-
dc.identifier.citationArch Orthop Trauma Surg. 2005 Dec;125(10):693-5. Epub 2005 Oct 20.en_GB
dc.identifier.issn0936-8051 (Print)en_GB
dc.identifier.issn0936-8051 (Linking)en_GB
dc.identifier.pmid16237532en_GB
dc.identifier.doi10.1007/s00402-005-0059-4en_GB
dc.identifier.urihttp://hdl.handle.net/10147/208883-
dc.description.abstractINTRODUCTION: Numerous reports in the literature refer to the femoral neck fracture rate in hip resurfacing. The aim of this study was to determine the bone mineral density and evidence of stress shielding around the femoral component of the Birmingham resurfacing prosthesis. MATERIAL AND METHODS: Twenty-eight patients with primary unilateral osteoarthritis had a Birmingham resurfacing prosthesis. DEXA analysis of the proximal femur and femoral neck was performed and compared with the opposite unaffected side. RESULTS: Total periprosthetic bone mineral density was 0.49% greater than the control, but this did not achieve statistical significance. Although the BMD of the femoral neck was slightly increased on the prosthetic side (1.002 g/cm2) as opposed to the control side, this difference did not reach statistical significance. CONCLUSION: The Birmingham resurfacing prosthesis does not appear to reduce femoral neck bone mineral density in comparison to the normal femoral neck bone density. We conclude that femoral neck fractures are unlikely to be due to stress shielding related to the prosthesis.en_GB
dc.language.isoengen_GB
dc.subject.mesh*Absorptiometry, Photonen_GB
dc.subject.meshArthroplasty, Replacement, Hip/*instrumentationen_GB
dc.subject.mesh*Bone Densityen_GB
dc.subject.meshFemur Head/radiographyen_GB
dc.subject.meshFemur Neck/radiographyen_GB
dc.subject.mesh*Hip Prosthesisen_GB
dc.subject.meshHumansen_GB
dc.subject.meshMiddle Ageden_GB
dc.subject.meshOrthopedic Procedures/*instrumentationen_GB
dc.subject.meshOsteoarthritis, Hip/radiography/surgeryen_GB
dc.subject.meshStress, Mechanicalen_GB
dc.titleDual energy X-ray absorptiometry analysis of peri-prosthetic stress shielding in the Birmingham resurfacing hip replacement.en_GB
dc.contributor.departmentDepartment of Orthopaedic Surgery, Cork University Hospital, The Mews, 61, Serpentine Ave, Ballsbridge, Dublin 4, Ireland. jaharty@hotmail.comen_GB
dc.identifier.journalArchives of orthopaedic and trauma surgeryen_GB
dc.description.provinceMunster-

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