Evaluation of a reconstruction reverse shoulder for tumour surgery and tribological comparision with an anatomical shoulder arthroplasty.
Purpose: The functional results after reconstruction of the proximal humerus in tumour surgery are poor. Therefore, a reversed proximal humerus replacement was developed in our institution (MUTARS humerus inverse). A low degree of wear on the polyethylene is required because of the patients' youth a...
| Publicado en: | International Orthopaedics Vol. 37; no. 3; pp. 451 - 457 |
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| Autores principales: | , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Mar2013
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104238888&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104238888 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 03412695 NQZ jtl: International Orthopaedics issn: 03412695 maglogo: N pubinfo: dt: Mar2013 vid: 37 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104238888 104238888 NLM23318938 2012018580 10.1007/s00264-012-1771-7 NLM23318938 PMC3580095 104238888 ppf: 451 ppct: 6 formats: tig: atl: Evaluation of a reconstruction reverse shoulder for tumour surgery and tribological comparision with an anatomical shoulder arthroplasty. aug: au: Dieckmann, Ralf Liem, Dennis Gosheger, Georg Henrichs, Marcel-Philipp Höll, Steffen Hardes, Jendrik Streitbürger, Arne affil: Department of Orthopaedics and Tumor Orthopaedics, Münster University Hospital, Albert-Schweitzer-Campus 1, A1, 48149, Münster, Germany, Ralf.Dieckmann@ukmuenster.de. sug: subj: Arthroplasty, Replacement Equipment and Supplies Joint Prosthesis Shoulder Joint Surgery Arthroplasty, Replacement Methods Biocompatible Materials Equipment Failure Polyethylenes Prosthesis Design ab: Purpose: The functional results after reconstruction of the proximal humerus in tumour surgery are poor. Therefore, a reversed proximal humerus replacement was developed in our institution (MUTARS humerus inverse). A low degree of wear on the polyethylene is required because of the patients' youth and demands on shoulder function. A special type of polyethylene with shock-absorbing properties has been developed to minimise polyethylene wear in the MUTARS inverse proximal humerus replacement. We compared the tribological properties of an anatomical shoulder prosthesis (CAPICA) with the new reversed proximal humerus replacement (MUTARS humerus inverse).Methods: Both prostheses were tested up to 5 × 10(6) cycles. Every millionth cycle the surface was inspected and a gravimetric measurement was performed. A measurement of surface roughness was done before testing and after 5 × 10(6) cycles.Results: In both prostheses after 5 × 10(6) cycles there were no major defects, such as delamination, observed. In the reversed proximal humerus replacement abrasion of 28 mg/10(6) cycles was detected. The mean abrasion of the anatomical prosthesis was 9.28 mg/ 10(6) cycles.Conclusion: The glenoid component of the first reversed humerus replacement (MUTARS humerus inverse) has wear properties comparable to those of normal reversed shoulder prostheses. This is important, as this type of prosthesis is used in young patients after resection of bone tumours, with a good functional outcome. It can, therefore, be expected that the revision rate due to wear will be as high as in patients with normal reversed shoulder prostheses. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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