Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Polio "handwalker" with quadrupedal (hands-and-feet bear crawl) gait after poliomyelitis (1)

Case of Swiss neurologist Robert Bing (1921). Boy using a hands-and-feet bear crawl: infantile spinal paralysis. So-called "handwalker" as a result of severe dorsal and lumbar poliomyelitis. Note the marked atrophy in the pelvic girdle and leg muscles. (Source: Bing R. A textbook of nervous diseases for students and practising physicians in thirty lectures. Authorized translation by Charles L Allen. New York: Rebman Co, 1921. See also: Lanska DJ. A human quadrupedal gait following poliomyelitis: From the Dercum-Muybridge collaboration [1885]. Neurology 2016;86:872-6.)

Associated Disorders

  • Aseptic meningitis
  • Bulbar polio
  • Bulbospinal polio
  • Infantile paralysis
  • Nonparalytic polio
  • Paralytic polio
  • Polioencephalitis
  • Post-polio progressive muscular atrophy
  • Post-polio syndrome
  • Spinal paralytic polio