You are here

Hammer Toe M20.40 735.4

hammer toe 
ICD-9 Classification / Treatment
Etiology / Natural History Associated Injuries / Differential Diagnosis
Anatomy Complications
Clinical Evaluation Follow-up Care
Xray / Diagnositc Tests Review References

synonyms:hammer toe

Hammer Toe ICD-10

Hammer Toe ICD-9

  •  735.4 Acquired deformity of toe; other acquired hammer toe

Hammer Toe Etiology / Epidemiology / Natural History

  • PIP joint flexion deformity
  • Most common lesser toe deformity
  • Caused by overpull of the EDL and intrinsic imbalance
  • Generally involves the 2nd toe

Hammer Toe Anatomy

  •  

Hammer Toe Clinical Evaluation

  • Generally complain of painfull callus over the flexed PIP joint and difficulty with shoe wear
  • Push-up Test: passive push-up of the metatarsal head corrects the deformity in flexible cases by removing the overactivve extrinsic muscles

Hammer Toe Xray / Diagnositc Tests

Hammer Toe Classification / Treatment

  • Flexible  deformity: accomidative footwear, protective padding.  Consider transfer of FDL dorsally over midshaft of prox phalanx.
  • Fixed deformity: Resection arthroplasty of the head and neck of the proximal phalanx vs PIP arthrodesis.
  • Fixed deformity with MTP joint dislocation:  PIP resection arthroplasty, extensor tendon lengthening, and Weil osteotomy.

Hammer Toe Associated Injuries / Differential Diagnosis

Hammer Toe Complications

Hammer Toe Follow-up Care

  •  

Hammer Toe Review References

  • Myerson MS, Fott and Ankle Disorders WB Saunders, 2000
  • Coughlin MJ, Dorris J, Polk E. Operative repair of the fixed hammertoe deformity. Foot Ankle Int. 2000 Feb;21(2):94-104

 

 

 

Disclaimer

The information on this website is intended for orthopaedic surgeons.  It is not intended for the general public. The information on this website may not be complete or accurate.  The eORIF website is not an authoritative reference for orthopaedic surgery or medicine and does not represent the "standard of care".  While the information on this site is about health care issues and sports medicine, it is not medical advice. People seeking specific medical advice or assistance should contact a board certified physician.  See Site Terms / Full Disclaimer