Abstract: This disclosure provides an anatomic socket alignment guide set, for total hip replacement arthroplasty. The guide set is created from patient-specific medical images, allowing the guide set components to recreate the native center of rotation of a patient's hip joint, thereby permitting accurate placement of the hip replacement prosthesis.

Abstract: This disclosure provides an anatomic socket alignment guide set, for total hip replacement arthroplasty. The guide set is created from patient-specific medical images, allowing the guide set components to recreate the native center of rotation of a patient's hip joint, thereby permitting accurate placement of the hip replacement prosthesis.

Abstract: A cement plug for sealing the medullary canal of a bone to restrict the flow of cement, debris, etc. beyond a predetermined point in the canal. The cement plug, which is executed in a biocompatible plastic, comprises (1) a tubular body that is a slit axially at three or more locations to define resilient fingers, (2) an obturator plate located at the upper end of the body, (3) a tapered conical plug that can be advanced through the lower end of the body and intot he interior thereof, and (4) a threaded bolt that extends through the tubular body and into the conical plug. Locator holes are formed in the obtrator plate, and sharpe edges, teeth, or locator tab(s) are formed on the outer surface of the conical plug so that said plug does not rotate relative to the tubular body of the plug. An insertion tool, including an inner tube and an outer tube, is engaged within the locator by depending plins. The lower end of the inner tube engages the upper end of the threaded bolt.