Additional correct skin incisions in hand: A, Z-plasty incision often used in Dupuytren contracture (McGregor). B and C, Zigzag incisions for Dupuytren contracture or exposure of flexor tendon sheath. D, Volar flap incision. E, Incision to expose structures in volar side of thumb and thenar area. F, Incision in distal palm for trigger finger or other affections of proximal tendon sheath. G, Incision to form flap over hypothenar area. H, Incision to expose structures in middle of palm; it may be extended proximally into wrist. I, Short transverse incision in volar surface of wrist. J, Short transverse incision to release trigger thumb. K, Digital palmar oblique incision.