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Risk of Conversion to Arthroplasty After Hip Arthroscopy: Validation of a Published Risk Score Using an Independent, Prospectively Collected Database

Authors: Hevesi M, Leland DP, Rosinsky PJ, Lall AC, Domb BG, Hartigan DE, Levy BA, Krych AJ

DOI: 10.1177/0363546521993829

Background

While hip arthroscopy treats many hip problems, some patients eventually require total hip arthroplasty (THA). This study validates a risk score designed to predict which arthroscopy patients are more likely to need THA later.

Methods

The study followed 187 hip arthroscopy patients for at least 2 years to see who required THA. The published risk score, which includes factors like age and hip function, was tested against this data.

Key Findings

  • 7% of patients needed THA within an average of 1.6 years after arthroscopy.
  • The risk score accurately predicted which patients had a higher likelihood of conversion to THA (ROC curve 0.894, indicating excellent accuracy).

Conclusions

This risk score is a reliable tool to help predict the chance of needing hip replacement after arthroscopy, aiding treatment planning.

What Does This Mean for Providers

  • Use this validated risk score to counsel patients realistically about their prognosis after hip arthroscopy.
  • Incorporate the risk score into clinical decision-making to tailor treatment plans.
  • Identify high-risk patients early and consider alternative or adjunctive therapies.
  • Utilize this tool to improve shared decision-making and set appropriate patient expectations.