What type of suture technique can eliminate dead space?

• A. Subcuticular sutures
• B. Intermittent sutures
• C. Deep/buried sutures
• D. Skin staples

Answer: (C)

The idea being tested is how to prevent fluid accumulation in a wound by eliminating dead space. Dead space is the empty area left between tissue layers after an incision, which can fill with blood or serum and delay healing or cause infection. Placing sutures deep within the tissue—burying them in the deeper layers—directly closes and apposes these layers, effectively obliterating that potential space. This deep or buried suturing holds the tissues together from within, reduces the chance for hematoma or seroma formation, and supports more reliable healing.

Other closure methods focus on the surface. Subcuticular sutures run under the skin to bring the edges of the dermis together for a smooth cosmetic result but don’t address the deeper spaces. Intermittent sutures are tied across the wound edge but may leave dead space if only the superficial layers are approximated. Skin staples close the skin quickly but again mainly involve the surface tissue and don’t reliably eliminate dead space in the deeper layers. Therefore, deep/buried sutures are the techniques best suited to obliterate dead space and promote proper wound healing.