Treatment of Pelvic Osteolysis

The Clinical PerspectiveNicholas Ramey

The Goal

The Problem

THA components present bio-compatibility issues resulting in pelvic osteolysis.

The Solutions

• The Maloney Approach tries to deliver

• The CIS Team takes the challenge

Component Background

• Acetabular Component

• Materials• Mechanics• Interfaces

Osteolysis Background

• Biological Response

• Radiographic Description

• Role of Component Interfaces

Expert Approach

• Maloney, W.J. M.D. “Treatment of Pelvic Osteolysis Associated with a

Stable Acetabular Component Inserted without Cement as Part of

a Total Hip Replacement.” J. Bone and Joint Surg. 79-A, November 1997,

pp. 1628-1634.

Expert Approach: Methods

• Retrospective Analysis

• Initial Assessments

• Systematic Treatment

• Determined Resolution

Expert Approach: Results

• Osteolytic Path Description• Confirmed Successes

Expert Approach: Discussion

• Polyethylene factor

• Patient pain levels

• Extensiveness of debridement

• Suggestions

Personal Assessment

• Clear Background

• Appropriate Study Type

• Vague/Confusing Result Report

• Understandably Inexhaustive Conclusions

Next Step

• Surgical CAD/CAM with S. Prasad, M. Li, N. Ramey

• Assessment