Recent media coverage has reignited the discussion around the outcomes of Total Knee Arthroplasty (TKA). Both total knee and hip arthroplasty have transformed the management of patients with advanced osteoarthritis, offering pain relief, restored function, and improved mobility. However, global data shows that, in most cases, the short-term outcomes of Total Hip Arthroplasty (THA) outperform those of Total Knee Arthroplasty (TKA), with success rates of 96% for THA compared to 89% for TKA. Several factors contribute to this disparity.

The knee joint’s mechanics are influenced by three essential factors: morphology, soft tissue balance, and alignment. These elements are intricately linked, each affecting and depending on the other to produce personalized joint movement, or kinematics, for every patient. When even one of these factors is altered from its natural state, the balance is disrupted, leading to potentially suboptimal outcomes. This is why personalized goal setting is critical—every knee has its own unique characteristics, and what works for one patient may not work for another.

There are two main approaches to knee replacement: kinematic alignment and mechanical alignment. Although they begin with different strategies, both aim to achieve the same outcome: a well-functioning, pain-free joint. Unfortunately, current implants and techniques have yet to perfectly deliver this outcome for every patient.

At Surge, we are committed to delivering results that align with each patient’s expectations. We recognize that no two knee issues are the same, and this is why we employ a customized treatment plan for everyone, based on the principles of knee morphology, soft tissue balance, and alignment. Our approach focuses on personalized perioperative care and detailed planning, with individualized goal setting at the heart of the process. By using adjustable intraoperative techniques and state-of-the-art robotic technology, we fine-tune the patient’s specific kinematics to deliver the best possible outcome.

In knee replacement surgery, alignment alone is not enough. A successful result requires careful attention to the unique interplay of all three key elements—morphology, soft tissue balance, and alignment—ensuring that each patient receives the most tailored, effective care possible.

The SURGE Orthopaedics team remains committed to providing orthopaedic solutions of the highest standard, continuing to place value on outcomes whilst being cognisant of individual needs / expectations and measuring what matters.