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Clinical and radiographic outcomes of an all-polyethylene fluted central peg glenoid component, implanted utilizing an off-label, uncemented technique, at a minimum 5-year follow-up

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Abstract
Background: Glenoid component loosening remains an important concern in anatomic total shoulder arthroplasty. The aim of this study was to evaluate the clinical and radiographic results of a fully uncemented all-polyethylene fluted central peg bone-ingrowth glenoid component at a minimum 5-year follow-up. Methods: Thirty-five shoulders in 31 patients (mean age, 73 years) with a mean follow-up of 100 months were retrospectively evaluated at an early and mid-term time point for Constant score (CS). Computed tomography visualized glenoid component fixation at both time points. Results: Mean CS improved from 40 preoperatively to 66 postoperatively at latest follow-up (P <.001). A mean CS of 74 at early follow-up remained consistent with a mean CS of 66 at latest follow-up (P = .158), with only strength demonstrating a decrease over time (P <.001). An initial osseointegration rate of 81% at early follow-up decreased to 71% at latest follow-up with 74% of the shoulders demonstrating progressive radiolucent lines, resulting in a radiographic loosening rate of 31%. Of the 35 shoulders, 4 were revised (survival rate of 88%), of which 2 due to symptomatic aseptic loosening. Conclusions: Uncemented fixation of an all-polyethylene central peg bone-ingrowth glenoid was associated with satisfactory clinical and radiographic scores, and an acceptable revision rate at mid- to long-term follow-up. Despite initial bony osseointegration in the majority of cases, radiographic loosening over time remains a concern, potentially jeopardizing long-lasting fixation of this type of glenoid component when implanted in an off-label uncemented fashion. (C) 2020 Journal of Shoulder and Elbow Surgery Board of Trustees. All rights reserved.
Keywords
TOTAL SHOULDER ARTHROPLASTY, EARLY MIGRATION, REPLACEMENT, OSTEOARTHRITIS, PROSTHESIS, Total shoulder arthroplasty, radiolucency, osseointegration, glenoid, loosening, pegged glenoid, bone ingrowth, Anchor Peg Glenoid, cementless

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MLA
Jacxsens, Matthijs, et al. “Clinical and Radiographic Outcomes of an All-Polyethylene Fluted Central Peg Glenoid Component, Implanted Utilizing an off-Label, Uncemented Technique, at a Minimum 5-Year Follow-Up.” JOURNAL OF SHOULDER AND ELBOW SURGERY, vol. 29, no. 11, Mosby-elsevier, 2020, pp. 2292–98, doi:10.1016/j.jse.2020.02.027.
APA
Jacxsens, M., Dayerizadeh, N., Vandenbosch, D., Van Tongel, A., & De Wilde, L. (2020). Clinical and radiographic outcomes of an all-polyethylene fluted central peg glenoid component, implanted utilizing an off-label, uncemented technique, at a minimum 5-year follow-up. JOURNAL OF SHOULDER AND ELBOW SURGERY, 29(11), 2292–2298. https://doi.org/10.1016/j.jse.2020.02.027
Chicago author-date
Jacxsens, Matthijs, Nader Dayerizadeh, Dominiek Vandenbosch, Alexander Van Tongel, and Lieven De Wilde. 2020. “Clinical and Radiographic Outcomes of an All-Polyethylene Fluted Central Peg Glenoid Component, Implanted Utilizing an off-Label, Uncemented Technique, at a Minimum 5-Year Follow-Up.” JOURNAL OF SHOULDER AND ELBOW SURGERY 29 (11): 2292–98. https://doi.org/10.1016/j.jse.2020.02.027.
Chicago author-date (all authors)
Jacxsens, Matthijs, Nader Dayerizadeh, Dominiek Vandenbosch, Alexander Van Tongel, and Lieven De Wilde. 2020. “Clinical and Radiographic Outcomes of an All-Polyethylene Fluted Central Peg Glenoid Component, Implanted Utilizing an off-Label, Uncemented Technique, at a Minimum 5-Year Follow-Up.” JOURNAL OF SHOULDER AND ELBOW SURGERY 29 (11): 2292–2298. doi:10.1016/j.jse.2020.02.027.
Vancouver
1.
Jacxsens M, Dayerizadeh N, Vandenbosch D, Van Tongel A, De Wilde L. Clinical and radiographic outcomes of an all-polyethylene fluted central peg glenoid component, implanted utilizing an off-label, uncemented technique, at a minimum 5-year follow-up. JOURNAL OF SHOULDER AND ELBOW SURGERY. 2020;29(11):2292–8.
IEEE
[1]
M. Jacxsens, N. Dayerizadeh, D. Vandenbosch, A. Van Tongel, and L. De Wilde, “Clinical and radiographic outcomes of an all-polyethylene fluted central peg glenoid component, implanted utilizing an off-label, uncemented technique, at a minimum 5-year follow-up,” JOURNAL OF SHOULDER AND ELBOW SURGERY, vol. 29, no. 11, pp. 2292–2298, 2020.
@article{8703780,
  abstract     = {Background: Glenoid component loosening remains an important concern in anatomic total shoulder arthroplasty. The aim of this study was to evaluate the clinical and radiographic results of a fully uncemented all-polyethylene fluted central peg bone-ingrowth glenoid component at a minimum 5-year follow-up. Methods: Thirty-five shoulders in 31 patients (mean age, 73 years) with a mean follow-up of 100 months were retrospectively evaluated at an early and mid-term time point for Constant score (CS). Computed tomography visualized glenoid component fixation at both time points. Results: Mean CS improved from 40 preoperatively to 66 postoperatively at latest follow-up (P <.001). A mean CS of 74 at early follow-up remained consistent with a mean CS of 66 at latest follow-up (P = .158), with only strength demonstrating a decrease over time (P <.001). An initial osseointegration rate of 81% at early follow-up decreased to 71% at latest follow-up with 74% of the shoulders demonstrating progressive radiolucent lines, resulting in a radiographic loosening rate of 31%. Of the 35 shoulders, 4 were revised (survival rate of 88%), of which 2 due to symptomatic aseptic loosening. Conclusions: Uncemented fixation of an all-polyethylene central peg bone-ingrowth glenoid was associated with satisfactory clinical and radiographic scores, and an acceptable revision rate at mid- to long-term follow-up. Despite initial bony osseointegration in the majority of cases, radiographic loosening over time remains a concern, potentially jeopardizing long-lasting fixation of this type of glenoid component when implanted in an off-label uncemented fashion. (C) 2020 Journal of Shoulder and Elbow Surgery Board of Trustees. All rights reserved.},
  author       = {Jacxsens, Matthijs and Dayerizadeh, Nader and Vandenbosch, Dominiek and Van Tongel, Alexander and De Wilde, Lieven},
  issn         = {1058-2746},
  journal      = {JOURNAL OF SHOULDER AND ELBOW SURGERY},
  keywords     = {TOTAL SHOULDER ARTHROPLASTY,EARLY MIGRATION,REPLACEMENT,OSTEOARTHRITIS,PROSTHESIS,Total shoulder arthroplasty,radiolucency,osseointegration,glenoid,loosening,pegged glenoid,bone ingrowth,Anchor Peg Glenoid,cementless},
  language     = {eng},
  number       = {11},
  pages        = {2292--2298},
  publisher    = {Mosby-elsevier},
  title        = {Clinical and radiographic outcomes of an all-polyethylene fluted central peg glenoid component, implanted utilizing an off-label, uncemented technique, at a minimum 5-year follow-up},
  url          = {http://dx.doi.org/10.1016/j.jse.2020.02.027},
  volume       = {29},
  year         = {2020},
}

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