Cementless second-generation hydroxyapatite CaP-coated tibial component: an 8.7-year follow-up

Area of Science:

• Orthopedic surgery
• Biomaterials science
• Medical device engineering

Background:

• First mid-term results for cementless hydroxyapatite calcium phosphate (CaP)-coated tibial components in 81 arthritis patients.
• Focus on knee arthritis treatment using advanced implant technology.

Purpose of the Study:

• To evaluate the mid-term clinical and radiological outcomes of cementless CaP-coated tibial components.
• To assess the efficacy and safety of this second-generation implant in knee osteoarthritis treatment.

Main Methods:

• Seventy-six knees with osteoarthritis were evaluated using multiple scoring systems (Knee Society, Hospital for Special Surgery, Patella Score).
• Clinical and radiological parameters assessed preoperatively and after an average 8.7-year follow-up.
• Survival rate and incidence of radiolucency and cysts were analyzed.

Main Results:

• Excellent clinical outcomes reported across all three scoring systems post-follow-up.
• Significant improvement in Knee Society clinical scores (p=0.0008).
• High survival rate of 97.5% with minimal radiolucency (<6%) and rare asymptomatic cysts.

Conclusions:

• The uncemented second-generation hydroxyapatite CaP-coated tibial component demonstrates successful mid-term performance.
• The implant provides stable bone ingrowth fixation, indicating its suitability for knee arthritis treatment.