Subdural Hematoma Description A subdural hematoma is a collection of blood caused by bleeding (hemorrhage) that collects and clots beneath the outermost of the three membranes (meninges) that cover the…

Sesamoid Injury Description Sesamoid injury is an injury of the sesamoid bones or surrounding tissue. Sesamoid bones are bones that are actually within tendons. They exist normally in the foot,…

Kienbock Disease (Avascular Necrosis of the Lunate) Description Kienbock disease is characterized by death of one of the bones of the hand and wrist, the lunate bone, from loss of…

Quadrilateral Space Syndrome Description Quadrilateral space syndrome is a rare nerve condition in the shoulder that causes pain and occasionally weakness in the back of the shoulder. It involves compression…

Peroneal Tendon Rupture Description Peroneal tendon rupture is a complete tear of one of the peroneal tendons, which are the tendon attachments of the outer leg muscles, the peroneus brevis…

Ulnar Collateral Ligament Injury of the Thumb (Gamekeeper’s or Skier’s Thumb) Description Ulnar collateral ligament (UCL) injury of the thumb involves stretching and tearing of the UCL at the base…

Morton Neuroma (Interdigital Plantar Neuroma) Description Morton neuroma is a nerve disorder in the foot that causes pain and loss of feeling between two toes. It involves compression of the…

Tibial Eminence Fracture Description A tibial eminence fracture is a partial or complete fracture of the attachment of the anterior cruciate ligament (ACL), one of the four major ligaments of…

Scaphoid Fracture Description Scaphoid fracture is a complete or incomplete break of the scaphoid bone of the hand and wrist. The scaphoid bone has poor blood supply and is at…

Proximal Tibiofibular Joint Dislocation Description Proximal tibiofibular joint dislocation is an uncommon injury to a joint at the outer knee, where adjoining bones are displaced from their normal position, and…