Negative pressure wound therapy can transform a stalled, complex wound — and it can also be an expensive answer to a wound that a good dressing would have closed on its own. For an agency weighing rental versus purchase, the question is not whether NPWT works, but when the therapy and the spend are actually justified.
NPWT earns its cost on complex, slow-healing, or high-exudate wounds where controlled negative pressure measurably accelerates granulation and manages fluid that dressings alone cannot. Large surgical wounds, certain ulcers, and dehisced incisions are the candidates. A clean, straightforward wound on a normal healing trajectory is not — there the pump is overkill.
Once the therapy is indicated, the device decision is disposable versus durable. Single-use disposable units fit shorter courses and avoid capital outlay and reprocessing; durable rental-grade machines make sense for an ongoing program with steady NPWT census. Match the unit type to whether you are treating an episode or running a standing program.
Our advanced wound care supplies guide covers where NPWT fits in the broader wound-care formulary. The cost-justification rule is simple: indicate it by wound complexity and healing trajectory, then choose disposable or durable by program volume.
Use NPWT where the wound demands it and the math supports it — not as a default, and not as a line item nobody questions.