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A 32-year-old man sustains a traumatic amputation of his right thumb (Figure A). He undergoes the soft-tissue coverage procedure shown in Figure B. What artery does this flap rely on, and which nerve is at risk during this procedure?
Medial femoral circumflex artery; femoral branches of genitofemoral nerve
Medial femoral circumflex artery; lateral femoral cutaneous nerve
Superficial circumflex iliac artery; femoral branches of genitofemoral nerve
Superficial circumflex iliac artery; lateral femoral cutaneous nerve
Superficial circumflex iliac artery; ilioinguinal nerve
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A 67-year-old man presents with aseptic loosening of a primary total knee arthroplasty (TKA). He has a history of a prior tibial plateau fracture which was treated with open reduction and internal fixation via an anterolateral approach and subsequently was converted to a primary posterior-stabilized TKA utilizing a standard midline, medial parapatellar approach. He is scheduled for revision TKA and the more medial incision is used, leaving a small lateral skin bridge. He presents a few weeks later with wound necrosis and after multiple rounds of debridement and negative pressure wound therapy, he is left with the lateral defect seen in Figure A. Which of the following surgical options would best address his defect?
Latissimus dorsi free flap
Gracilis free flap
Split-thickness skin graft
Full-thickness skin graft
A 30-year-old male sustains a 3.5 cm long thumb pulp injury seen in Figure A. He undergoes a procedure to restore the soft tissue envelope. Which treatment option is contraindicated because of increased risk of interphalangeal joint stiffness?
Moberg volar advancement flap
Foucher first dorsal metacarpal artery flap
Littler neurovascular island flap
Free great toe pulp transfer
Holevich first dorsal metacarpal artery flap
A 58-year-old man presents with right middle finger swelling. Radiographs and an MRI of his hand are shown in Figure A and B. Tissue biopsy and staging investigations are performed. The tumor is then resected en bloc with the middle metacarpal, which is amputated 1.5cm from the carpometacarpal joint. The attached deep transverse intermetacarpal ligaments are sacrificed. To prevent scissoring of the remaining digits and small objects falling through the gap between index and ring fingers, which of the following procedures should be performed?
iliac crest bone grafting
ring metacarpal transposition
second toe transfer
index metacarpal transposition
suture of deep transverse intermetacarpal ligaments
A 32-year-old male sustains a type IIIb open proximal third tibia fracture. Four days after intramedullary nailing of the tibia, the wound is clean and ready for coverage with a medial gastrocnemius rotational flap. What is the dominant arterial blood supply to this flap?
Superior and inferior genicular arteries
Anterior tibial artery
Posterior tibal artery
The sural artery provides the vascular supply to which musculocutaneous flap?