FOOSH is acronym for fall onto outstretched hand.
A number of injuries of the upper limb occur because of fall onto out stretched hand.
Hence commonly these are called FOOSH injuries.
Common Injuries Caused by FOOSH
Here are the injuries that may occur due to FOOSH
- Fracture of the clavicle
- Fracture proximal humerus
- Supracondylar fracture of the humerus
- Fracture of the head and neck of the radius
- Monteggia fracture-dislocation
- Galeazzi fracture-dislocation
- Colles’ fracture
- Radial styloid fracture
- Fracture of the scaphoid
- Fracture of the triquetral
- Bennetts fracture/Reverse Bennet Fracture
- Ulnar collateral ligament injury
Clavicle fractures are the most common upper limb fractures They account for about 35% injuries to the shoulder girdle and 2.6% – 4% of all adult fractures
Clavicular fractures are also caused by motor vehicle accidents and when a person falls directly on the shoulder with the arm at the side.
Direct blow or from a fall on an outstretched hand are less common causes.
Proximal Humerus Fracture
A similar injury in young people may result in shoulder dislocation.
Depending on the severity of injury, the fracture may be undisplaced or displaced. The distal fragment of bone is moved backwards and is tilted, although very rarely it is displaced anteriorly. Displaced fractures could injure nerves and vessels in the vicinity.
Radial Head Fracture
This type of fracture may result from a fall on the outstretched hand that forces the elbow into valgus. This will force the head of the radius against the capitulum.
In adults there is more likelihood of injuring the radial head. But in children, radial neck is generally fractured.
There is also likely to be bruising or chipping of the articular cartilage of the capitulum.
Galeazzi Fracture and Monteggia Fracture
The Galeazzi fracture dislocation is:
- a fracture of the lower radius, with
- dislocation or subluxation of the distal radio-ulnar joint
It is often caused by on an outstretched hand, probably with an element of rotation. The condition may be regarded as a mirror image of a Monteggia fracture which is fracture of ulna and dislocation of radial head.
Distal Radius Fracture
Colles fracture is most widely known distal radius fracture but there are other variants and all can be caused by FOOSH.
Smith fracture is another fracture of distal radius that can be caused by FOOSH.
Fall on to out stretched hand can also cause radial styloid fracture.
Carpal Bone Injuries
Fracture of the scaphoid followed by fracture of the triquetral are most common injuries caused by fall on outstretched hand.
Also, the fall on the outstretched hand can lead to ligamentous injury leading to wrist instability.
Features of FOOSH Injuries
Fall onto an outstretched hand occurs following sporting injuries, or simply after a fall.
Typically, these injuries have bimodal age and sex presentation.
- Young patients – high energy trauma
- Older patients – lower energy, e.g. simple fall
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