Plastic Surgery>>>>>Basic principles and basic science
Question 46#

According to the Mathes and Nahai classification, sartorius is: 

A. A Type I muscle flap
B. A Type II muscle flap
C. A Type III muscle flap
D. A Type IV muscle flap
E. A Type V muscle flap

Correct Answer is D

Comment:

A Type IV muscle flap. The supply is segmental, and this is of relevance when using this flap such as for coverage of the femoral vessels during groin lymphadenectomy with a ‘sartorius switch’. Some have suggested the proximal part of this flap is not viable during the switch procedure which simply scars and fibroses.