Trends in glenoid component design in unconstrained shoulder arthroplasty

Churchill, R. Sean

doi:10.1016/j.jse.2010.10.036

Cited by 9 publications

(5 citation statements)

References 24 publications

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“…The first referred cause of those failures was the thickness of the implant [4, 19, 20]. However, most of the articles referred to old conceptions [21–23] or designs which did not insure a good primary fixation [24]. However, some more recent publications presented some encouraging results [25, 26].…”

Section: Discussionmentioning

confidence: 99%

“…The convexity was preferred to a flat back tray, being widely recognised as insuring a good bone-implant contact and transforming the shear forces in compressive forces [1, 23, 27–30]. Iannotti [29], like Neer previously [1], insisted in the better easiness of well positioning the convexe implant, which parallely decreases the frequency of lucent lines [31].…”

Section: Discussionmentioning

confidence: 99%

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New design of a cementless glenoid component in unconstrained shoulder arthroplasty: a prospective medium-term analysis of 143 cases

Katz

Kany

Valenti

et al. 2012

Eur J Orthop Surg Traumatol

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The uncemented glenoid implants in total anatomical shoulder arthroplasty are likely to be accused of problems like dissociations, secondary rotator cuff tear, and wear of polyethylene (PE). This work is a clinical and radiological prospective review of 143 cases of anatomical total shoulder arthroplasty using a new metal back uncemented glenoid implant (MB) in order to see if this new implant induces those complications. A total of 143 cases were operated between 2003 and 2011. In a first part, the whole series of 143 cases was radiologically studied in order to quantify the lateralisation induced by the MB implant. In a second study, 37 cases had a mean follow-up of 38 months (24–75, mean 32) and served for the clinical and radiological final study. Pre- and postoperative clinical evaluation was done using the Constant–Murley score and the simple shoulder test from Matsen. The final X-rays served to detect an eventual secondary narrowing of the joint space and to analyse the frequency of radio lucent lines (RLL) and loosenings. Despite a small radiological lateralisation in comparison with the normal contralateral side (0.36 cm, p = 0.02), the clinical results after 2 years were similar to the published cemented glenoid implants series but without any RLL, glenoid loosening or joint narrowing. Some dissociations occured in the beginning and definitely eliminated by a design modification of the PE tray. The discussion tried to show that, despite a still short follow-up, this series is encouraging to continue to use this new MB implant. Different applications of the concept of universality and conversion are discussed, this tray been also the support of a glenosphere in reverse arthroplasty.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

New design of a cementless glenoid component in unconstrained shoulder arthroplasty: a prospective medium-term analysis of 143 cases

Katz

Kany

Valenti

et al. 2012

Eur J Orthop Surg Traumatol

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“…The reported annualized rates indicate the mean increase in the cumulative prevalence of glenoid failure during each year after the procedure. Although substantial money, time, and energy are being directed at ''improved'' component designs and techniques for glenoid component insertion 48,49 , there is a paucity of evidence indicating that newer designs have lower failure rates. Some of the newest designs show excellent initial radiographic appearances but, like their predecessors, show progressive radiolucent lines and increasing symptoms over time 18,23,50 .…”

mentioning

confidence: 99%

Failure of the Glenoid Component in Anatomic Total Shoulder Arthroplasty

Papadonikolakis

Neradilek²,

Matsen

2013

The Journal of Bone & Joint Surgery

160

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This is the first systematic review of the published evidence on glenoid component failure. Although the authors of individual articles proposed various risk factors for glenoid component failure, many of these relationships were not significant in the present study. A consistent methodological approach to future investigations is likely to improve the quality of the evidence on which patients, techniques, and prostheses are selected for total shoulder arthroplasty.

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“…The other pegged glenoid that incorporates porous metal is produced by Zimmer-Biomet (Zimmer-Biomet Orthopedics Inc., Warsaw, IN). It is a hybrid implant with four pegs and a modular central peg that can either be all polyethylene for fully cemented use, or exchanged for a porous titanium metallic central peg for bone ingrowth [16]. To date, there is no published data on the outcomes of this component.…”

Section: Porous Metal Use In the Glenoid Componentmentioning

confidence: 99%

“…The metal-backed glenoid that was originally popularized by Cofield incorporated a metal backing with screw fixation and an exchangeable polyethylene liner [16]. The potential benefits of a metal-backed design were the opportunity for isolated polyethyelene exchange in a revision setting [17], improved cementless Bbiologic^fixation, and improved stress transfer between the implant and the bone [18].…”

Section: Introductionmentioning

confidence: 99%

Porous metals and alternate bearing surfaces in shoulder arthroplasty

Carpenter

Urits

Murthi

2016

Curr Rev Musculoskelet Med

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Total shoulder arthroplasty (TSA) provides an effective solution for the treatment of glenohumeral arthritis. However, long-term outcomes have been limited by glenoid component aseptic loosening and polyethylene (PE) wear. Previous attempts to improve glenoid fixation with metal-backed glenoids resulted in inferior results. Newer component designs that contain porous metal allow for biological ingrowth of the prosthesis, potentially improving longevity and overall outcomes. Porous metal can also improve humeral component fixation, obviating the need for cement and simplifying revision surgery. Advances such as highly cross-linked polyethylene (HXLPE), vitamin E-doped HXLPE, and alternate bearing surfaces like ceramics and pyrolytic carbon have proven to provide superior wear characteristics in other joint replacements and may prove beneficial in the shoulder as well.

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Trends in glenoid component design in unconstrained shoulder arthroplasty

Cited by 9 publications

References 24 publications

New design of a cementless glenoid component in unconstrained shoulder arthroplasty: a prospective medium-term analysis of 143 cases

New design of a cementless glenoid component in unconstrained shoulder arthroplasty: a prospective medium-term analysis of 143 cases

Failure of the Glenoid Component in Anatomic Total Shoulder Arthroplasty

Porous metals and alternate bearing surfaces in shoulder arthroplasty

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