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