FEMORAL REAMERS HAVING A WEAR INDICATOR AND RELATED KITS AND METHODS

摘要

A femoral reamer (100) can include a base material (304) and a coating (302) disposed on the base material. The coating can be harder than the base material and, as a result, the femoral reamer can wear more slowly than if the coating was absent. The coating can be a different color than the base material. When the coating is worn off, such wear can be easily observed from a visual inspection of the femoral reamer. The coating can have an initial thickness (i.e., a thickness prior to use) that is related to a tolerance on a size and/or a shape of a hole drilled by the femoral reamer. When the coating is worn off, the size and/or the shape of the hole drilled by the femoral reamer may be at or near an edge of a specified tolerance range. The femoral reamer can be part of a kit and a method.

主权项

1. A method, comprising:
identifying a range of suitable femoral canal sizes for a selected femoral stem to be implanted; selecting a femoral reamer including a base material of a first color and a coating of a second, different color disposed on the base material, the femoral reamer being nominally sized to drill a femoral canal of a size within the identified range of suitable femoral canal sizes; visually inspecting the selected femoral reamer, including observing at least one region on the selected femoral reamer in which the first color of the base material is visible through the second color of the coating; and determining, from the observed at least one region, that the selected femoral reamer has a size dimension that is outside the identified range of suitable femoral canal sizes.