Patient selection and management for successful cementless total knee arthroplasty

Area of Science:

• Orthopedic surgery
• Biomaterials science
• Geriatric medicine

Background:

• Cemented total knee arthroplasty (TKA) is standard for arthritis but faces long-term durability concerns, particularly for active patients.
• Cementless TKA is gaining traction due to improved implant designs and enhanced biological fixation, offering a viable alternative.

Purpose of the Study:

• To evaluate the efficacy and patient selection criteria for cementless total knee arthroplasty (TKA).
• To explore the role of advanced implant materials and pharmacologic interventions in cementless TKA outcomes.

Main Methods:

• Review of clinical outcomes and migration studies for cementless TKA components.
• Analysis of patient-specific factors influencing cementless implant success, including bone quality and comorbidities.
• Investigation of adjunctive therapies like bisphosphonates to improve bone integration.

Main Results:

• Cementless TKA shows promise with improved fixation via hydroxyapatite coatings and porous surfaces.
• Younger patients, those with good bone quality, and selected elderly/obese individuals may benefit from cementless options.
• Initial tibial component migration in cementless TKA stabilizes over time without compromising long-term results.

Conclusions:

• Cementless TKA is a viable alternative to cemented procedures, with ongoing research refining patient selection and surgical techniques.
• Pharmacologic interventions may enhance bone density and implant fixation in cementless TKA.
• Further investigation is crucial for optimizing cementless TKA in patients with specific bone health challenges like osteoporosis.