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Ulnar neuropathy is a disorder involving the ulnar nerve. Ulnar neuropathy may be caused by entrapment of the ulnar nerve with resultant numbness and tingling. [3] It may also cause weakness or paralysis of the muscles supplied by the nerve. Ulnar neuropathy may affect the elbow as cubital tunnel syndrome.
An anastomosis occurs when two structures that normally are not connected have a connection. In this case the connection is a nerve. The Martin-Gruber anastomosis is most common anastomosis that occurs between these two nerves. [1] This connection carries motor axons which innervate some of the usually ulnar nerve innervated intrinsic muscles.
Examples of trauma deformities may include but are not limited to: ulnar claw deformity due to ulnar nerve damage from elbow injuries, [12] boutonnière deformity, [1] mallet finger, [13] jersey finger [14] and gamekeeper's thumb, [4] which can result from sport injuries.
Cubital tunnel syndrome is an entrapment neuropathy, or nerve compression syndrome, a condition caused by compression, traction or friction, of the ulnar nerve at the elbow. [1] Nerve compression is also known as a trapped nerve. The ulnar nerve travels from the shoulder (brachial plexus) down the length of the arm to the hand.
Ulnar tunnel syndrome, also known as Guyon's canal syndrome or Handlebar palsy, is ulnar neuropathy at the wrist where it passes through the ulnar tunnel (Guyon's canal). [1] The most common presentation is a palsy of the deep motor branch of the ulnar nerve causing weakness of the interosseous muscles .
The latter involves compression at the wrist of the superficial sensory branch of the radial nerve which does not innervate hand muscles. [ citation needed ] Robert Wartenberg (1887-1956) was a neurologist born in Belarus who worked in Germany until 1935 when he emigrated to the United States.
Among the signs/symptoms are the following (different symptoms are caused by different nerves, such as the foot drop caused by the peroneal nerve [4]): Other HNPP symptoms can include: Partial hearing loss and facial numbness (cranial nerves can be afflicted by HNPP), intolerable fatigue and pain, sensation loss and muscle weakness in the hands ...
A hand imitating an ulnar claw. The metacarpophalangeal joints of the 4th and 5th fingers are extended and the Interphalangeal joints of the same fingers are flexed.. An ulnar claw, also known as claw hand or Spinster’s Claw, is a deformity or an abnormal attitude of the hand that develops due to ulnar nerve damage causing paralysis of the lumbricals.