When Knee Arthritis Quietly Disrupts Daily Life
Knee arthritis often progresses so gradually that patients adapt to pain without fully recognising how much it restricts them. For a 64-year-old retired bank professional, persistent knee pain slowly transformed simple activities—short walks, standing for a few minutes, and visits to nearby shops—into exhausting and painful tasks. Although medications and physiotherapy provided temporary relief, the discomfort kept returning, steadily affecting mobility, confidence, and independence.
Clinical Evaluation and Surgical Decision-Making
Following a detailed clinical examination and imaging assessment, total knee replacement emerged as the most effective long-term solution. However, like many patients, he expressed understandable concerns about surgical pain, muscle damage, and prolonged recovery.
To address these apprehensions, Dr Arun V, Consultant Orthopaedic and Minimally Invasive Joint Replacement Surgeon at Sai Multispeciality Hospital, Chengalpattu, recommended a minimally invasive sub-vastus total knee replacement—a muscle-preserving technique designed to enable faster and smoother recovery.
Understanding the Sub-Vastus Technique
Unlike conventional knee replacement approaches that require splitting the quadriceps muscle, the sub-vastus technique allows surgeons to access the knee joint without cutting the thigh muscle. As explained by Dr Arun V, the procedure is performed through a smaller incision with meticulous handling of surrounding soft tissues.
By preserving the quadriceps muscle, this approach significantly reduces surgical trauma. Consequently, patients experience better post-operative muscle control, improved knee movement, and a more natural gait following surgery.
Early Mobilisation and Rapid Recovery
As per the press release, the benefits of the muscle-preserving approach became evident almost immediately. The patient stood and began assisted walking on the first day after surgery. Pain remained well controlled, and gentle knee movements were encouraged early to support joint flexibility.
By the fifth post-operative day, he walked independently without support and managed stairs and basic daily activities with ease.
Steady Functional Improvement
Recovery progressed steadily over the following weeks. Within 10 to 14 days, the patient comfortably resumed routine household activities, including prolonged sitting, standing, and indoor walking. By the third week, he returned to regular outdoor walks, regaining confidence and independence.
Throughout rehabilitation, swelling remained minimal, and physiotherapy was well tolerated due to preserved muscle strength. Additionally, the smaller incision resulted in minimal scarring.
Positive Clinical Outcomes and Patient Experience
Follow-up assessments demonstrated improving knee range of motion, stability, and overall function. At review, the patient reported significant pain relief and a marked improvement in quality of life.
What is often perceived as a major and demanding surgery became a more patient-friendly experience—without compromising surgical precision, implant alignment, or long-term outcomes.
A Modern Approach to Knee Replacement
For patients with advanced knee arthritis, minimally invasive sub-vastus total knee replacement offers clear clinical advantages, including earlier mobilisation, reduced post-operative discomfort, faster functional recovery, and a quicker return to everyday life.
By combining surgical accuracy with muscle preservation, this technique represents a thoughtful and modern approach to knee replacement—focused not only on restoring the joint, but also on rebuilding movement, confidence, and independence.