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Scaphoid pseudarthrosis, before and after treatment with Herbert screw. Vascular supply of the scaphoid comes from two different vascular pedicles. 20-30% of the blood supply (a.) comes from the volar branch of the radial artery and enters the bone at the tubercle. 70-80% comes from (b.) the dorsal branch of the radial artery and travels ...
The scaphoid can be slow to heal because of the limited circulation to the bone. Fractures of the scaphoid must be recognized and treated quickly, as prompt treatment by immobilization or surgical fixation increases the likelihood of the bone healing in anatomic alignment, thus avoiding mal-union or non-union. [6] Delays may compromise healing.
Bone healing, or fracture healing, is a proliferative physiological process in which the body facilitates the repair of a bone fracture. Generally, bone fracture treatment consists of a doctor reducing (pushing) displaced bones back into place via relocation with or without anaesthetic, stabilizing their position to aid union, and then waiting ...
Nondisplaced waist crack B Acute/unstable B1 Oblique/distal third B2 Displaced waist B3 Proximal pole B4 Fracture dislocation B5 Comminuted fracture: C Delayed union D Established non-union D1 Fibrous D2 Sclerotic
An open fracture can be life threatening or limb-threatening (person may be at risk of losing a limb) due to the risk of a deep infection and/or bleeding. Open fractures are often caused by high energy trauma such as road traffic accidents and are associated with a high degree of damage to the bone and nearby soft tissue. [1]
Scapholunate advanced collapse is the most common form, followed by scaphoid non-union advanced collapse (SNAC). [3] Other post-traumatic causes such as intra-articular fractures of the distal radius or ulna can also lead to wrist osteoarthritis, but are less common.
An open fracture (or compound fracture) is a bone fracture where the broken bone breaks through the skin. [ 2 ] A bone fracture may be the result of high force impact or stress , or a minimal trauma injury as a result of certain medical conditions that weaken the bones, such as osteoporosis , osteopenia , bone cancer , or osteogenesis ...
The differential diagnosis includes scaphoid fractures and wrist dislocations, which can also co-exist with a distal radius fracture. Occasionally, fractures may not be seen on X-rays immediately after the injury. Delayed X-rays, X-ray computed tomography (CT scan), or Magnetic resonance imaging (MRI) can confirm the diagnosis. [citation needed]