BACKGROUND: Porous metal acetabular augments have become widely used to fill bony defects in patients undergoing revision total hip arthroplasty. The objective of this study was to determine whether the currently offered size range of the augments is appropriate for surgical needs. METHODS: We reviewed the cases of all patients at 1 centre with a porous revision shell, and when an augment was used we recorded the patient and implant characteristics. RESULTS: We reviewed the cases of 281 patients, and augments were used in 24. Augment diameter was skewed toward the small end (p < 0.001), although thickness was not (p = 0.05); 21 of 24 augments were those with the smallest 3 diameters and thicknesses. CONCLUSION: Given the sizes used, the full range of inventory provided by the manufacturer may be unnecessary, as surgeons will likely attempt a larger shell before a larger augment.
BACKGROUND: Porous metal acetabular augments have become widely used to fill bony defects in patients undergoing revision total hip arthroplasty. The objective of this study was to determine whether the currently offered size range of the augments is appropriate for surgical needs. METHODS: We reviewed the cases of all patients at 1 centre with a porous revision shell, and when an augment was used we recorded the patient and implant characteristics. RESULTS: We reviewed the cases of 281 patients, and augments were used in 24. Augment diameter was skewed toward the small end (p < 0.001), although thickness was not (p = 0.05); 21 of 24 augments were those with the smallest 3 diameters and thicknesses. CONCLUSION: Given the sizes used, the full range of inventory provided by the manufacturer may be unnecessary, as surgeons will likely attempt a larger shell before a larger augment.
Authors: Sarunas Tarasevicius; Otto Robertsson; Uldis Kesteris; Romas Jonas Kalesinskas; Hans Wingstrand Journal: Acta Orthop Date: 2008-08 Impact factor: 3.717
Authors: Alexander Siegmeth; Clive P Duncan; Bassam A Masri; Winston Y Kim; Donald S Garbuz Journal: Clin Orthop Relat Res Date: 2008-10-16 Impact factor: 4.176