SACH Foot
Pronunciation: SACK
Also written as: SACH — Solid Ankle Cushion Heel
Solid Ankle Cushion Heel foot; a non-articulated prosthetic foot with a cushioned heel wedge that compresses on heel strike to simulate ankle motion.
Full Definition
The SACH (Solid Ankle Cushion Heel) foot is one of the oldest and most widely prescribed prosthetic foot designs. It features a rigid keel with a compressible heel wedge that absorbs impact at heel strike, simulating limited ankle motion without mechanical articulation. It is commonly prescribed for low-activity ambulators (K1–K2) due to its durability, low cost, and minimal maintenance requirements. Editors must always write the acronym in full capitals with no internal punctuation: SACH. Clinical notes, prescriptions, and insurance documents frequently reference SACH feet by the acronym alone. The spelled-out form 'Solid Ankle Cushion Heel' should appear on first use in formal documents.
Usage
Usage note: Always capitalise as SACH (all caps, no periods). On first use in formal documents, provide the full form: Solid Ankle Cushion Heel (SACH) foot.
In Context
- "Given the patient's K1 ambulatory status, a SACH foot was deemed the most appropriate and cost-effective prescription." — Prosthetic prescription form
- "The clinical note referred to a 'sach foot', which the editor corrected to the standard acronym SACH foot." — Copy-editing note