By Dr. Jeffrey Peng, MD · Published March 4, 2026 · 6 min read Watch the Full Video Knee osteoarthritis is one of the most common conditions I treat in my sports medicine practice . It is characterized by the progressive deterioration and loss of cartilage inside the knee joint. While many patients assume that arthritis means the end of an active lifestyle, understanding the warning signs early can help you take the right steps to manage symptoms and preserve joint function.

Written by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician Published: March 2, 2026 | Last Updated: March 2, 2026 Shoulder cracking and popping sounds can be unsettling, especially when they seem to come out of nowhere. Many patients walk into my clinic concerned that a click or pop in their shoulder means something is seriously wrong — perhaps a rotator cuff tear or the beginning of arthritis. The good news is that in the vast majority of cases, these mecha