Spinal extradural haematoma or spinal epidural hematoma (SEH) is bleeding into the epidural space in the spine. These may arise spontaneously (e.g. during childbirth), or as a rare complication of epidural anaesthesia or of surgery (such as laminectomy). Symptoms usually include back pain which radiates to the arms or the legs. They may cause pressure on the spinal cord or cauda equina, which may present as pain, muscle weakness, or dysfunction of the bladder and bowel. Pathophysiology
The anatomy of the epidural space is such that spinal epidural hematoma has a different presentation from intracranial epidural hematoma. In the spine, the epidural space contains loose fatty tissue and a network of large, thin-walled veins, referred to as the epidural venous plexus. The source of bleeding in spinal epidural hematoma is likely to be this venous plexus. Diagnosis
The best way to confirm the diagnosis is MRI. Risk factors include anatomical abnormalities and bleeding disorders. Treatment
Treatment is generally with emergency surgery. The risk following epidural anaesthesia is difficult to quantify; estimates vary from 1 per 10,000 to 1 per 100,000 epidural anaesthetics. == References ==
Treatment
The treatment and management of radial neuropathy can be achieved via the following methods:
Physical therapy or occupational therapy
Surgery (depending on the specific area and extent of damage)Tendon transfer (the origin remains the same but insertion is moved)Splinting

Prognosis
Radial neuropathy is not necessarily permanent, though there could be partial loss of movement or sensation. Complications include deformity of the hand in some individuals. If the injury is axonal (the underlying nerve fiber itself is damaged), recovery may take months or years and full recovery may never occur. EMG and nerve conduction studies are typically performed to diagnose the extent and distribution of the damage, and to help with prognosis for recovery. Culture and society
There are a number of terms used to describe radial nerve injuries, which are dependent on the causation factor such as:

Honeymoon palsy from another individual sleeping on and compressing ones arm overnight. Saturday night palsy from falling asleep with ones arm hanging over the arm rest of a chair, compressing the radial nerve. Squash palsy, from traction forces associated with the sport squash, happens to squash players during periods between matches. See also
Crutch paralysis
Peripheral neuropathy

References
Further reading
Cartwright, Michael S.; Yoon, Joon Shik; Lee, Kyu Ho; Deal, Nicole; Walker, Francis O. (1 April 2011). "Diagnostic Ultrasound for Traumatic Radial Neuropathy". American Journal of Physical Medicine & Rehabilitation. 90 (4): 342–343. doi:10.1097/PHM.0b013e3181e29daa. ISSN 0894-9115. PMC 2964388. PMID 20531154. Tuncel, Umut; Turan, Aydin; Kostakoglu, Naci (1 January 2011). "Acute closed radial nerve injury". Asian Journal of Neurosurgery. 6 (2): 106–109. doi:10.4103/1793-5482.92175. ISSN 1793-5482. PMC 3277063. PMID 22347334.