Early results of augmented anatomic glenoid components

Priddy, Michael; Zarezadeh, Ali; Farmer, Kevin W.; Struk, Aimee M.; King, Joseph J.; Wright, Thomas W.; Schoch, Bradley S.

doi:10.1016/j.jse.2019.04.014

Cited by 35 publications

(40 citation statements)

References 29 publications

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“…An augmented glenoid component can be placed without excessive bone removal and can help to restore the native joint line and maintain joint stability without shifting the component medially. 5 , 6 , 14 , 15 Two commercially available design types are the wedge-shaped and stepped components. Biomechanical studies have shown that the wedge-shaped glenoid component has a better performance and fixation profile with lower overall micromotion and stress levels on the implant compared with the stepped-type component.…”

Section: Discussionmentioning

confidence: 99%

“… 15 Only a few clinical studies have reported on the posteriorly augmented glenoid component as a treatment for posterior bone loss. 6 , 14 For anterior glenoid bone loss, a posteriorly augmented glenoid component enables to be used in the opposite side. Only 1 case report has been published on the treatment of anterior glenoid bone loss with an anteriorly stepped augmented component.…”

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confidence: 99%

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Total shoulder arthroplasty with an anteriorly augmented glenoid component for glenohumeral osteoarthritis with anterior glenoid bone loss: a case report

2021

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Total shoulder arthroplasty with an anteriorly augmented glenoid component for glenohumeral osteoarthritis with anterior glenoid bone loss: a case report

2021

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“…Priddy et al 22 compared 37 shoulder treated with posterior wedge augmented glenoid (Exactech, Equinoxe shoulder system) with 37 standard glenoid TSA. They had preop CT Scan in most patients but postop X-rays only.…”

Section: Discussionmentioning

confidence: 99%

Does posterior half-wedge augmented glenoid restore version and alignment in total shoulder arthroplasty for the B2 glenoid?

Das

Wright

Singh

et al. 2020

Journal of Clinical Orthopaedics and Trauma

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Introduction: Walch type B2 has biconcave glenoid with posterior erosion, bone loss and humeral head subluxation. This leads to decreased glenohumeral contact area and increased contact pressure. During total shoulder arthroplasty(TSA), uncorrected retroversion causes eccentric loading and failure of glenoid component. It also leads to humeral head decentring with posterior rim loading, early glenoid wear and component loosening. This study aims to review anatomical restoration of glenoid version and humeral head centring in TSA with B2 glenoid using CT scans. Methods: This is a retrospective review of TSA for glenohumeral osteoarthritis with B2 Glenoid morphology. All polyethylene posterior wedge augmented glenoid component was used. All patients underwent pre and post surgery CT Scans. Glenoid version was calculated using neoglenoid line and medial scapular border as reference point. Post-operative humeral head centering was calculated using offset of centre of rotation of humeral head with plane of scapula on axial CT-Scan. Results: Study had 10 patients with 11 TSA between June 2017 and July 2018. Mean age was 59(45e80) years. Mean preoperative retroversion was 16(13e23)degrees. This was corrected to a mean of 0 retroversion postoperatively. 63% had good radiological correction (0e5 retroversion). Humeral head was well centered post-operatively with mean humeral scapula alignment offset of 2.1(0.8e4.5) mm posteriorly. All cases had well-centered humeral head postoperatively with offset less than 5 mm. Conclusions: Total shoulder replacement in B2 glenoid is technically demanding. Our radiological results show favourable outcome in terms of correction of gelenoid retroversion and eliminating posterior instability using wedge glenoid component. Level of evidence: IV.

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“…The mean pre-operative glenoid retroversion reported in six studies 30,[33][34][35][36][37] was 21.8 , with an average correction of 11.3 to 9.5 of retroversion postoperatively (Figure 5). Radiolucency around the glenoid component was noted in 37% of shoulders (four studies, [31][32][33]36 148 patients); however, two-thirds of these cases had a Lazarus radiolucency grading 38…”

Section: Radiographic Outcomesmentioning

confidence: 99%

“…A total of eight complications were reported in the eligible studies. [29][30][31][32][33][34]36 Favorito et al 32 noted an anterior dislocation in a patient two weeks post-operatively, requiring revision to a larger head. One patient suffered two posterior dislocations, 22 months and 30 months following surgery requiring revision to a rTSA.…”

Section: Complicationsmentioning

confidence: 99%

Early outcomes of augmented glenoid components in anatomic total shoulder arthroplasty: a systematic review

et al. 2021

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Background The objective was to evaluate the short-term clinical and radiological outcomes following augmented anatomic total shoulder arthroplasty in patients with posterior glenoid deficiency. Methods An electronic search of EMBASE, MEDLINE, and PubMed identified studies reporting clinical and radiographic outcomes following augmented anatomic total shoulder arthroplasty among patients with posterior glenoid deficiency. Results Nine studies including 312 shoulders underwent anatomic total shoulder arthroplasty using an augmented glenoid implant between 2015 and 2020. A statistically significant improvement in range of motion (ROM), visual analog scale (VAS), American Shoulder & Elbow Surgeons (ASES), Constant, University of California - Los Angeles and Simple Shoulder Test (SST) scores was demonstrated at mean follow-up of 37.1 months. Glenoid retroversion improved from 21.8° to 9.5°. At final follow-up, radiolucency was reported in 35.1% of shoulders. The 16° full-wedge augment led to higher and more severe radiographic lucency, while high peg perforation rates (44%) were observed among 5-mm augment stepped implants. The overall rate of complication was 2.6%. Rate of revision surgery was 1.9%. Conclusions Overall, early- to mid-term outcomes following augmented anatomic total shoulder arthroplasty for posterior glenoid deficiency demonstrate good to excellent overall clinical results. More radiographic and clinical failures were reported in larger full wedge (16°) augments and stepped augments (5 mm). Prospective studies examining mid- and long-term outcomes will help further elucidate safety and efficacy of these relatively new implants.

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Early results of augmented anatomic glenoid components

Cited by 35 publications

References 29 publications

Total shoulder arthroplasty with an anteriorly augmented glenoid component for glenohumeral osteoarthritis with anterior glenoid bone loss: a case report

Total shoulder arthroplasty with an anteriorly augmented glenoid component for glenohumeral osteoarthritis with anterior glenoid bone loss: a case report

Does posterior half-wedge augmented glenoid restore version and alignment in total shoulder arthroplasty for the B2 glenoid?

Early outcomes of augmented glenoid components in anatomic total shoulder arthroplasty: a systematic review

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