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Consequences of reaming with flat and convex reamers for bone volume and surface area of the glenoid; a basic science study

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Abstract
Background: The effect of reaming on bone volume and surface area of the glenoid is not precisely known. We hypothesize that (1) convex reamers create a larger surface area than flat reamers, (2) flat reamers cause less bone loss than convex reamers, and (3) the amount of bone loss increases with the amount of version correction. Methods: Reaming procedures with different types of reamers are performed on similar-sized uniconcave and biconcave glenoids created from Sawbones foam blocks. The loss of bone volume, the size of the remaining surface area, and the reaming depth are measured and evaluated. Results: Reaming with convex reamers results in a significantly larger surface area than with flat reamers for both uniconcave and biconcave glenoids (p = 0.013 and p = 0.001). Convex reamers cause more bone loss than flat reamers, but the difference is only significant for uniconcave glenoids (p = 0.007). Conclusions: In biconcave glenoids, convex reamers remove a similar amount of bone as flat reamers, but offer a larger surface area while maximizing the correction of the retroversion. In pathological uniconcave glenoids, convex reamers are preferred because of the conforming shape.
Keywords
3-DIMENSIONAL COMPUTED-TOMOGRAPHY, TOTAL SHOULDER ARTHROPLASTY, RETROVERSION, RECONSTRUCTION, COMPLICATIONS, MULTICENTER, COMPONENT POSITION, POSTERIOR EROSION, FOLLOW-UP, PRIMARY GLENOHUMERAL OSTEOARTHRITIS, Prosthesis, Shoulder, Version, Erosion, Reaming, Glenoid

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Chicago
Karelse, Tannetje Jannetje Adriana, Steven Leuridan, Alexander Van Tongel, Philippe Debeer, Jos Van Der Sloten, Kathleen Denis, and Lieven De Wilde. 2015. “Consequences of Reaming with Flat and Convex Reamers for Bone Volume and Surface Area of the Glenoid; a Basic Science Study.” Journal of Orthopaedic Surgery and Research 10.
APA
Karelse, T. J. A., Leuridan, S., Van Tongel, A., Debeer, P., Van Der Sloten, J., Denis, K., & De Wilde, L. (2015). Consequences of reaming with flat and convex reamers for bone volume and surface area of the glenoid; a basic science study. JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH, 10.
Vancouver
1.
Karelse TJA, Leuridan S, Van Tongel A, Debeer P, Van Der Sloten J, Denis K, et al. Consequences of reaming with flat and convex reamers for bone volume and surface area of the glenoid; a basic science study. JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH. 2015;10.
MLA
Karelse, Tannetje Jannetje Adriana, Steven Leuridan, Alexander Van Tongel, et al. “Consequences of Reaming with Flat and Convex Reamers for Bone Volume and Surface Area of the Glenoid; a Basic Science Study.” JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH 10 (2015): n. pag. Print.
@article{7037617,
  abstract     = {Background: The effect of reaming on bone volume and surface area of the glenoid is not precisely known. We hypothesize that (1) convex reamers create a larger surface area than flat reamers, (2) flat reamers cause less bone loss than convex reamers, and (3) the amount of bone loss increases with the amount of version correction. 
Methods: Reaming procedures with different types of reamers are performed on similar-sized uniconcave and biconcave glenoids created from Sawbones foam blocks. The loss of bone volume, the size of the remaining surface area, and the reaming depth are measured and evaluated. 
Results: Reaming with convex reamers results in a significantly larger surface area than with flat reamers for both uniconcave and biconcave glenoids (p = 0.013 and p = 0.001). Convex reamers cause more bone loss than flat reamers, but the difference is only significant for uniconcave glenoids (p = 0.007). 
Conclusions: In biconcave glenoids, convex reamers remove a similar amount of bone as flat reamers, but offer a larger surface area while maximizing the correction of the retroversion. In pathological uniconcave glenoids, convex reamers are preferred because of the conforming shape.},
  articleno    = {181},
  author       = {Karelse, Tannetje Jannetje Adriana and Leuridan, Steven and Van Tongel, Alexander and Debeer, Philippe and Van Der Sloten, Jos and Denis, Kathleen and De Wilde, Lieven},
  issn         = {1749-799X},
  journal      = {JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH},
  keyword      = {3-DIMENSIONAL COMPUTED-TOMOGRAPHY,TOTAL SHOULDER ARTHROPLASTY,RETROVERSION,RECONSTRUCTION,COMPLICATIONS,MULTICENTER,COMPONENT POSITION,POSTERIOR EROSION,FOLLOW-UP,PRIMARY GLENOHUMERAL OSTEOARTHRITIS,Prosthesis,Shoulder,Version,Erosion,Reaming,Glenoid},
  language     = {eng},
  pages        = {8},
  title        = {Consequences of reaming with flat and convex reamers for bone volume and surface area of the glenoid; a basic science study},
  url          = {http://dx.doi.org/10.1186/s13018-015-0312-7},
  volume       = {10},
  year         = {2015},
}

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