Lymphedema management in patients with head and neck cancer: a systematic review of randomized controlled trials on physical therapy interventions.

Swelling in the neck and face, known as lymphedema, is a common and troublesome consequence of treatment for head and neck cancer, yet how best to manage it with physical therapy has not been well settled. This systematic review looked at randomized trials testing approaches such as manual lymphatic drainage, compression therapy, kinesio taping, and exercise, either alone or combined with skin care and self-management education. Only four trials, together including 167 patients, met the criteria, and just one of them was judged to have a low risk of bias. Across these trials, combining an exercise program with manual lymphatic drainage, sometimes alongside kinesio taping or compression, appeared to help with swelling that is visible on the skin surface, described as external lymphedema.

None of the approaches showed improvement for swelling inside the throat or airway, called internal lymphedema. Because the evidence base is so small and mostly at higher risk of bias, these findings should be seen as an early signal rather than a settled answer.

If you've had treatment for head and neck cancer, you may know that swelling, called lymphedema, can develop in the neck, face, or throat afterward. Researchers wanted to know whether physical therapy techniques like massage-based drainage, compression garments or wraps, taping, and exercise actually help with this swelling, so they gathered and reviewed the strongest type of studies, ones that randomly assigned patients to different treatments. They found only four such studies, involving 167 patients in total, and most had some quality concerns that make the results less certain.

The pattern that emerged was that exercise combined with manual lymphatic drainage, sometimes with taping or compression added, seemed to help with swelling that can be seen on the outside, like in the face or neck. None of the treatments studied showed improvement for swelling inside the throat area.

Because so few studies were available and their quality was mixed, these results are best thought of as an early hint rather than a firm conclusion about what works.

This is a summary of research, not medical advice. Talk to your own healthcare provider about anything affecting your care.

This systematic review, registered in PROSPERO and following PRISMA guidance, identified only four randomized controlled trials evaluating physical therapy interventions for secondary lymphedema in head and neck cancer, totaling 167 participants. Interventions included kinesio taping, compression therapy, manual lymphatic drainage, and exercise, generally combined with skin care and self-management education.

Risk of bias assessment using Cochrane tools found that only one trial achieved a low risk of bias, limiting confidence in pooled interpretation of this small and heterogeneous evidence base. The synthesized findings suggest that exercise programs combined with manual lymphatic drainage, supplemented by kinesio taping or compression therapy, may benefit external lymphedema, while none of the interventions demonstrated improvement in internal lymphedema. The abstract does not report head-to-head comparisons establishing superiority of one intervention combination over another, so it remains unclear which specific component drives benefit.

Adverse effects reported were mild and transitory, though safety was not the primary focus and this should not be extrapolated beyond what was assessed. Given the small number of trials, mixed risk of bias, and the distinction between external and internal lymphedema outcomes, these findings represent preliminary, low-certainty evidence rather than a definitive practice conclusion.