| Robotic arm-assisted total knee replacement reduces revision rate
Joints are the areas where the bones meet to facilitate movement. Osteoarthritis is common in the knee joints as these lower limb joints bear our upper body weight and are under pressure when we walk. Factors such as aging, obesity, inactive lifestyle, sports injuries, diabetes or high blood pressure also increase the risk of joint degeneration.
In the early stages of knee arthritis, patients may experience pain when walking up or down stairs or on slopes. In the intermediate stage, they may experience pain even when walking on level roads. As the condition deteriorates, the knee may become deformed with difficulty in bending, and even cause mobility problems, greatly impacting the patient's daily life.
To address knee joint degeneration, patients at early to intermediate stages may adopt conservative treatment methods such as modifying lifestyle habits, consuming certain supplements or oral pain relievers, or injecting steroid or hyaluronic acid into the joints. However, when the condition becomes severe, partial or total knee replacement are recommended, as advised by Dr Yan Chun-hoi, Co-Director of Joint Replacement Centre and Honorary Consultant in Orthopaedics & Traumatology at Gleneagles Hospital Hong Kong.
With advancements in medical technology, robotic arms can also be applied in total knee replacement to enhance surgical precision and safety. Pre-operative three-dimensional computer scans help doctors understand the patient's knee structure and shape, allowing accurate estimation of prosthesis size and improving bone cutting accuracy.
🔎Click here to watch a video (* in Cantonese only) in which Dr Yan Chun-hoi shares the process of robotic arm-assisted total knee replacement, its benefits and the post-operative recovery process.
機械臂輔助全膝關節置換手術減低翻修率
關節是指骨頭相連接的地方，讓我們的身體得以自由活動。由於下肢關節承受我們上半身的重量，行走時關節會受壓，因此退化性關節炎較常出現於膝關節。年齡增長、肥胖、缺乏運動、運動創傷、糖尿病或高血壓人士，亦較大機會出現關節退化。
早期膝關節炎患者上落樓梯或斜坡時可能會感到痛楚；中期患者可能在平路上行走都會出現痛楚。隨著病情惡化，膝蓋更會出現嚴重變形以致難以屈曲，甚至令患者舉步維艱，影響患者生活。
應對膝關節退化，港怡醫院關節置換中心聯席總監、骨科名譽顧問醫生忻振凱醫生建議早期及中期的膝關節炎患者採用保守治療方案，例如改善生活習慣、服用健康食品、使用口服止痛藥或於關節內注射類固醇或透明質酸。不過，當病情嚴重時，則建議患者考慮進行半膝或全膝關節置換手術。 隨著醫療科技進步，機械臂亦可以應用於全膝關節置換手術，提高手術精準度及安全性。術前的三維電腦掃描有助醫生了解患者膝關節結構和形狀，有助準確預測適用於患者的假體尺寸，以及提升截骨精確度。 🔎請即觀看短片，由忻振凱醫生解說機械臂輔助全膝關節置換手術的整個流程、優點以及術後康復過程。 | 
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