Response to: Study of Patients with Bilateral Knee Osteoarthritis Undergoing Total Knee Replacement Procedure with Coexisting Lumbar Spondylosis Symptoms

[...]we have accepted this possible confounding of ODI by knee OA pain in the limitations section of the paper. Patients presenting with more severe degenerative lumbar spine problems than knee problems are more likely to seek help from a spine specialist. [...]it is entirely possible that patients with more severe degenerative pathology of the lumbar spine were not captured in this study. Sanjay Bhalchandra Londhe1, Ravi Vinod Shah2, Meghana Patwardhan3, Amit Pankaj Doshi4, Shubhankar Sanjay Londhe5, Kavita Subhedar6, Vishal Kundnani7, Jwalant Patel7 1Department of Orthopaedic Surgery, Holy Spirit Hospital, Mumbai, India 2Department of Orthopaedic Surgery, Criticare Hospital, Mumbai, India 3Department of Pain Medicine and Anesthesia, Criticare Hospital, Mumbai, India 4Department of Product Management, Meril Lifesciences, Mumbai, India 5Department of Computer Science, The Vishwanath Karad MIT World Peace University, Pune, India 6Department of Clinical Data Management, Criticare Hospital, Mumbai, India 7Division of Spine Surgery, Department of Orthopaedics, Bombay Hospital, Mumbai, India