**Question:** Amputation of tarsometatarsal joint is called -
A. Lisfranc's amputation
B. Cheilectomy
C. Chopart's amputation
D. Lisfranc's dislocation
**Correct Answer:** C. Chopart's amputation
**Core Concept:**
The tarsometatarsal (TMT) joint is a synovial joint located between the base of the second through fifth metatarsal bones and the medial cuneiform, lunate, and scaphoid bones of the tarsus. In the context of amputation, understanding the affected joint is essential for accurate terminology.
**Why the Correct Answer is Right:**
Chopart's amputation is the correct term because it involves the complete removal of the TMT joint, also known as the tarsometatarsal joint complex. This joint is crucial for functional foot alignment and stability.
**Why Each Wrong Option is Incorrect:**
A. Lisfranc's amputation refers to an injury or surgical removal of the Lisfranc joint, which is a different joint located between the first two cuneiform bones. Lisfranc's amputation is not the correct term for the TMT joint amputation.
B. Cheilectomy is a surgical procedure that removes part of the fifth cuneiform bone, not the TMT joint itself. Cheilectomy is an operation for treating a specific foot deformity, not an amputation term for the TMT joint.
D. Lisfranc's dislocation refers to a disruption of the Lisfranc joint, not the TMT joint. It is a dislocation, not an amputation term.
**Clinical Pearl:**
Understanding the anatomy and terminology of specific joints is essential for medical professionals, particularly surgeons and orthopedic specialists. It helps communicate accurately about joint injuries, surgeries, and their outcomes.
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