Medically reviewed by John Costouros, MD Calcific tendinitis is a condition I’ve studied throughout my career. After my second shoulder

Medically reviewed by John Costouros, MD When patients come to my offices in Menlo Park and Fremont with a report

Medically reviewed by John Costouros, MD The biceps is the muscle most people picture when they think of arm strength.

Medically reviewed by John Costouros, MD A first shoulder dislocation is frightening. When the shoulder pops out the front, it

Medically reviewed by John Costouros, MD | Reviewed July 2026 One of the first questions patients ask me after shoulder

Medically reviewed by John Costouros, MD | Reviewed July 2026 Choosing a shoulder surgeon is an important decision you may

Medically reviewed by John Costouros, MD | Reviewed July 2026 The subscapularis is not the muscle that tends to get

Medically reviewed by John Costouros, MD | Reviewed June 2026 Most of my shoulder replacement patients do well for many

Medically reviewed by John Costouros, MD | Reviewed June 2026 When I evaluate patients in their 40s or 50s with

Medically reviewed by John Costouros, MD | Reviewed June 2026 One of the questions I hear from patients who are