Semi-quantitative assessment methods for backside polyethylene damage in modular total knee replacements

Quantitative Analysis of Retrieved Glenoid Liners

“…Rates of revision surgeries are highly varied and are estimated to lie somewhere below 12.5% [3]. Integrating a numerical wear classification system is valuable for making direct comparisons among various implants, and doing so can provide information about common wear patterns [4][5][6][7][8]. Currently, there is no standard for numerical wear analysis protocol, although several protocols have been suggested.…”

“…Currently, there is no standard for numerical wear analysis protocol, although several protocols have been suggested. Several investigators analyzed retrieved implants in various ways [4][5][6][7][8]. Most analyses involved qualitative observations with and/or without the use of microscopes [4][5][6][7][8].…”

“…Some studies added damage modes and utilized fewer parameters [4][5][6][7][8]. problems encountered in failed shoulder arthroplasties [3].…”

“…Some studies added damage modes and utilized fewer parameters [4][5][6][7][8]. Integrating a numerical wear classification system is valuable for making direct comparisons among various implants, and doing so can provide information about common wear patterns [4][5][6][7][8].…”

“…Several investigators analyzed retrieved implants in various ways [4][5][6][7][8]. Most analyses involved qualitative observations with and/or without the use of microscopes [4][5][6][7][8]. Investigators based their observations of polyethylene liners on standard indicators of wear: pitting, scratching, delamination, complete wear, embedded debris, abrasion, burnishing, deformation, fracture, and others.…”