Preoperative Templating in Hip Resurfacing: Impact on Implant Sizing and Component Positioning

Area of Science:

• Orthopedic Surgery
• Arthroplasty
• Digital Templating

Background:

• Hip resurfacing arthroplasty (HRA) has regained popularity due to improved success rates and novel techniques.
• Preoperative digital templating is a valuable tool for addressing HRA's technical challenges.
• Limited literature exists on the specific impact of digital templating in HRA.

Purpose of the Study:

• To investigate the influence of preoperative digital templating on implant sizing and component positioning in hip resurfacing surgeries.
• To evaluate the effectiveness of digital templating in optimizing HRA outcomes.

Main Methods:

• Retrospective study of HRA patients from 2019-2024.
• Collection and analysis of pre- and postoperative data, including implant size and component positioning.
• Comparison of templated vs. actual implant sizes and their effect on positioning and leg-length discrepancy.

Main Results:

• No significant difference in optimal implant positioning or leg-length discrepancy between patients with intraoperative size changes and those with matching templates.
• No correlation found between implant size changes and patient covariates (age, BMI, side, etiology).

Conclusions:

• Intraoperative adjustments for implant size and positioning remain crucial in hip resurfacing arthroplasty.
• Preoperative digital templating provides essential information for optimizing surgical success in HRA.