Conclusion: Wide range of clinical results exist for new alignment techniques in the short term. The safe range of alignment for long-term survivorship remains unknown. Further high-quality studies should be performed to warrant the widespread use of new alignment techniques.

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Alignment Techniques in Total Knee Arthroplasty

Conclusion: Wide range of clinical results exist for new alignment techniques in the short term. The safe range of alignment for long-term survivorship remains unknown. Further high-quality studies should be performed to warrant the widespread use of new alignment techniques.

🧠 Key Points:

• Mechanical alignment remains standard in TKA but doesn’t consider individual pre-arthritic alignment.
• Newer techniques (kinematic, restricted, inverse, modified, functional alignment) aim to restore native joint line and improve satisfaction.
• Most RCTs show comparable or better short-term outcomes with novel techniques.
• Long-term survivorship data are still lacking; alignment “safe zones” remain debated.
• Robotic and navigation systems are key tools in implementing newer alignment methods.

Journal of Joint Surgery and Research (2023), Vol 1: 108–116

doi.org/10.1016/j.jjoisr.2023.02.003