Hydroxyapatite coated hip hemiarthroplasty: Morbidity and mortality

Area of Science:

• Orthopedic Surgery
• Geriatric Medicine
• Biomaterials

Background:

• Increasing use of uncemented femoral stems for elderly hip fractures.
• Need to evaluate outcomes of modular, hydroxyapatite-coated stems.

Purpose of the Study:

• To assess the morbidity and mortality associated with a specific hydroxyapatite-coated femoral stem in elderly patients with displaced intracapsular hip fractures.

Main Methods:

• Prospective study of 259 consecutive elderly patients.
• 12-month follow-up evaluating mortality, complications, revision rates, length of stay, discharge, and mobility.

Main Results:

• No peri-operative mortality; 30-day, 120-day, and 365-day mortality rates were 8.2%, 15%, and 18.4%.
• Low rates of peri-operative fracture (0.8%), infection (1.1%), and dislocation (1.5%).
• 3.4% revision rate within 30 days, with no further revisions in the subsequent 12 months.
• Significant decrease in outdoor mobility at one year post-surgery (25% vs. 68% pre-fracture).

Conclusions:

• The hydroxyapatite-coated collared stem is a dependable option for treating displaced intracapsular femoral neck fractures in the elderly.
• Demonstrates satisfactory outcomes with no peri-operative mortality and low revision rates.