Observations on retrieved polyethylene glenoid components

Scarlat, Marius M.; Matsen, Frederick A.

doi:10.1054/arth.2001.23725

Cited by 55 publications

(42 citation statements)

References 38 publications

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“…Hertel and Ballmer 11 observed that the newly formed concavity of the glenoid component due to wear perfectly matched the radius of the prosthetic head. These observations confirmed those of other researchers 8,30 and assume that full articular conformity would be preferable.…”

Section: Discussionsupporting

confidence: 92%

Influence of glenohumeral conformity on glenoid stresses after total shoulder arthroplasty

Terrier

Büchler

Farron

2006

Journal of Shoulder and Elbow Surgery

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Section: Discussionsupporting

confidence: 92%

Influence of glenohumeral conformity on glenoid stresses after total shoulder arthroplasty

Terrier

Büchler

Farron

2006

Journal of Shoulder and Elbow Surgery

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“…Polyethylene wear particles have been observed in anatomical shoulder prostheses that have been removed after aseptic loosening associated with osteolysis [18,19]. Retrieved anatomical glenoid components have shown different types of wear [20][21][22][23]. Gunther et al analysed ten retrieved anatomical glenoids and noted a combination of abrasive and fatigue wear [21].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of a reconstruction reverse shoulder for tumour surgery and tribological comparision with an anatomical shoulder arthroplasty

Dieckmann

Liem

Gosheger

et al. 2013

International Orthopaedics (SICOT)

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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.

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“…The polyethylene wear of conventional shoulder arthroplasty has been studied in some detail (Swieszkowski et al, 2011;Wirth et al, 2009Wirth et al, , 1999Cheung et al, 2007;Scarlet and Matsen, 2001;Hasan et al, 2002). However, to our best knowledge, no such reports are available for RTSA.…”

Section: Limitations Of the Studymentioning

confidence: 99%

Wear-induced loss of mass in reversed total shoulder arthroplasty with conventional and inverted bearing materials

Kohut

Dallmann

Irlenbusch

2012

Journal of Biomechanics

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Observations on retrieved polyethylene glenoid components

Cited by 55 publications

References 38 publications

Influence of glenohumeral conformity on glenoid stresses after total shoulder arthroplasty

Influence of glenohumeral conformity on glenoid stresses after total shoulder arthroplasty

Evaluation of a reconstruction reverse shoulder for tumour surgery and tribological comparision with an anatomical shoulder arthroplasty

Wear-induced loss of mass in reversed total shoulder arthroplasty with conventional and inverted bearing materials

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