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Updates on Radial Head Arthroplasty in Trauma.
Joseph G Monir1, Eric R Wagner2
1Department of Orthopaedic Surgery, Orlando Health Jewett Orthopedic Institute, Orlando, FL, USA.
Hand Clinics
|October 17, 2025
Summary
Radial head arthroplasty (RHA) restores elbow function after fractures. Smooth or press-fit stems offer good outcomes, while cemented stems are not recommended for routine RHA. Proper implant placement is essential.
Area of Science:
- Orthopedic surgery
- Biomechanics
Background:
- The radial head is vital for elbow joint stability and motion.
- Radial head fractures often require surgical intervention to restore kinematics.
- Modern radial head arthroplasty (RHA) implants utilize metal alloy with varying stem designs.
Purpose of the Study:
- To review the role of the radial head in elbow kinematics.
- To discuss current trends and considerations in radial head arthroplasty (RHA).
- To highlight the importance of implant positioning in RHA outcomes.
Main Methods:
- Literature review of radial head arthroplasty (RHA) techniques.
- Analysis of implant designs, including stem types (smooth, press-fit, cemented).
- Discussion of methods for assessing implant positioning.
Main Results:
- Both smooth and press-fit stems in RHA can yield favorable clinical results.
- There is no definitive consensus favoring smooth over press-fit stems.
- Cemented stems are generally not indicated for routine RHA procedures.
Conclusions:
- Radial head arthroplasty (RHA) is effective in restoring elbow function post-fracture.
- Stem design choice (smooth vs. press-fit) does not appear to be a critical determinant of success.
- Accurate implant positioning is paramount for successful RHA outcomes.
