Complications associated with hip resurfacing arthroplasty

Area of Science:

• Orthopedic surgery
• Biomaterials science
• Clinical outcomes research

Background:

• Hip resurfacing arthroplasty, an established orthopedic procedure, has seen renewed interest and increased utilization.
• The rise in hip resurfacing procedures has led to a resurgence of previously identified complications.
• Understanding these complications is crucial for patient safety and successful surgical outcomes.

Purpose of the Study:

• To review and highlight common complications associated with hip resurfacing arthroplasty.
• To discuss specific issues including femoral neck fractures, avascular necrosis, and elevated metal ion levels.
• To evaluate the initial and long-term fixation of cobalt/chrome acetabular components in hip resurfacing.

Main Methods:

• Literature review focusing on complications of hip resurfacing arthroplasty.
• Analysis of reported cases and outcomes related to specific complications.
• Discussion of fixation principles for all-metal monoblock acetabular components.

Main Results:

• Femoral neck fractures and avascular necrosis are significant complications.
• Elevated metal ion levels are a concern with metal-on-metal articulation.
• Durable initial and long-term fixation of cobalt/chrome acetabular components is essential.
• Dislocation rates and other complications are also relevant considerations.

Conclusions:

• Hip resurfacing requires careful patient selection and surgeon expertise to mitigate risks.
• Monitoring for complications such as fractures, necrosis, and metal ion levels is critical.
• Proper component fixation is paramount for the longevity of hip resurfacing implants.