Transmetatarsal Amputation
Pronunciation: trans-met-uh-TAR-sal
Also written as: TMA — Transmetatarsal Amputation
Surgical removal of the forefoot across the metatarsal bones, leaving the hindfoot and ankle intact.
Full Definition
A transmetatarsal amputation (TMA) involves resection through the shafts of the metatarsal bones, preserving heel-strike function and the Achilles tendon lever arm. It is commonly performed due to diabetic complications or trauma. Editorially, the term is abbreviated TMA in subsequent references after first use. Writers should distinguish this from a Lisfranc or Chopart level, which involve joint disarticulation rather than bone transection. The preferred adjective form is 'transmetatarsal' (no hyphen).
Usage
Usage note: Always spell out on first use before introducing the TMA abbreviation in clinical documents.
In Context
- "Following transmetatarsal amputation, the patient was referred for partial foot prosthetic fitting." — Surgical operative report
- "The editor queried whether 'transmetatarsal amputation' or 'Lisfranc amputation' better described the level documented in the surgeon's notes." — Manuscript peer-review correspondence