Red flags for potential serious pathologies in people with neck pain: a systematic review of clinical practice guidelines.

The review included only 29 guidelines, and 17 of them (59%) did not include screening recommendations, so the evidence base is limited. The review excluded guidelines for serious neck pain because it expected them to focus on management rather than identification. Non-English and non-Italian guidelines were translated by software rather than human native speakers, so wording may have been missed. Deciding which documents counted as guidelines was difficult, so some relevant guidance may have been misclassified. Evidence levels were judged mainly by study design, not by quality or applicability, so some lower-level reasoning may have been treated too simply. Some guidelines described recommendation strength unclearly, so comparisons were hard.

The authors declared no conflicts of interest and said the study received no funding from public, commercial, or not-for-profit agencies.

Do not use red flags as stand-alone tests to confirm or exclude serious pathology. The review found poor agreement among guidelines and that most red flags were based on mechanism-based reasoning, not diagnostic accuracy. It also states that absence of clear red flags does not rule out a serious condition.