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Low dislocation, neck fracture rates seen with titanium modular neck for THA
Results from this single-center study demonstrated low dislocation and neck fracture rates after uncemented total hip arthroplasty performed with a titanium modular neck.
Researchers reviewed 809 THAs from a prospectively collected database. The mean follow-up was 5.7 years. Investigators used either a titanium, flat-tapered, wedge femoral stem or titanium, rectangular, dual-tapered, femoral stem. Both implants used a titanium neck. Complications, such as fracture, dislocation or aseptic lymphocyte-dominated vasculitis-associated lesions, were noted.
Results showed the overall dislocation rate was 1.1%. Investigators noted increased modularity was used in 39.4% of cases that used the posterior approach compared with 6.8% of cases performed with an anterior approach and 23.7% of cases performed using a lateral approach. At a mean of 95.5 months after the initial surgery, four men sustained neck fractures.
According to researchers, the highest utilization of increased modularity and the greatest dislocation rate were seen in cases performed using the posterior approach. Lower dislocation rates with no recurrences were seen in cases performed using anterior and lateral approaches. – by Monica Jaramillo
Disclosures: Gofton reports he is a paid consultant and paid presenter or speaker for Microport and Zimmer, and receives institutional research support and other financial or material support from Synthes. Please see the full study for a list of all other authors’ relevant financial disclosures.