Flexor tenosynovitis signs

Introduction Pyogenic Flexor Tenosynovitis (PFT) is a bacterial infection of the flexor tendon sheath in the hand, typically caused by Staphylococcus aureus. It results from penetrating trauma, bites, or hematogenous spread. The condition is characterized by Kanavel’s four cardinal signs: finger flexion at rest, fusiform swelling, tenderness along the tendon sheath, and pain with passive…