Systematic reviews · 2024
Spinal manipulations for migraine: an updated systematic review and meta-analysis of randomized clinical trials.
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Posadzki Pawel, Klimek Andrzej T, Ernst Edzard
Аннотация
OBJECTIVE: This update of a systematic review evaluates the effectiveness of spinal manipulations as a treatment for migraine headaches.
BACKGROUND: Spinal manipulation therapy (SMT) is sometimes used to treat migraine headaches; however, the biological plausibility and safety of SMT have repeatedly been questioned.
METHODS: Amed, Embase, MEDLINE, CINAHL, Mantis, Index to Chiropractic Literature, and Cochrane Central were searched from inception to September 2023. Randomized clinical trials (RCTs) investigating spinal manipulations (performed by various healthcare professionals including physiotherapists, osteopaths, and chiropractors) for treating migraine headaches in human subjects were considered. Other types of manipulative therapy, i.e., cranial, visceral, and soft tissue were excluded. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to evaluate the certainty of evidence.
RESULTS: Three more RCTs were published since our first review; amounting to a total of 6 studies with 645 migraineurs meeting the inclusion criteria. Meta-analysis of six trials showed that, compared with various controls (placebo, drug therapy, usual care), SMT (with or without usual care) has no effect on migraine intensity/severity measured with a range of instruments (standardized mean difference [SMD] - 0.22, 95% confidence intervals [CI] - 0.65 to 0.21, very low certainty evidence), migraine duration (SMD - 0.10; 95% CI - 0.33 to 0.12, 4 trials, low certainty evidence), or emotional quality of life (SMD - 14.47; 95% CI - 31.59 to 2.66, 2 trials, low certainty evidence) at post-intervention. A meta-analysis of two trials showed that compared with various controls, SMT (with or without usual care) increased the risk of AEs (risk ratio [RR] 2.06; 95% CI 1.24 to 3.41, numbers needed to harm = 6; very low certainty evidence). The main reasons for downgrading the evidence were study limitations (studies judged to be at an unclear or high risk of bias), inconsistency (for pain intensity/severity), imprecision (small sizes and wide confidence intervals around effect estimates) and indirectness (methodological and clinical heterogeneity of populations, interventions, and comparators).
CONCLUSIONS: The effectiveness of SMT for the treatment of migraines remains unproven. Future, larger, more rigorous, and independently conducted studies might reduce the existing uncertainties.
BACKGROUND: Spinal manipulation therapy (SMT) is sometimes used to treat migraine headaches; however, the biological plausibility and safety of SMT have repeatedly been questioned.
METHODS: Amed, Embase, MEDLINE, CINAHL, Mantis, Index to Chiropractic Literature, and Cochrane Central were searched from inception to September 2023. Randomized clinical trials (RCTs) investigating spinal manipulations (performed by various healthcare professionals including physiotherapists, osteopaths, and chiropractors) for treating migraine headaches in human subjects were considered. Other types of manipulative therapy, i.e., cranial, visceral, and soft tissue were excluded. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to evaluate the certainty of evidence.
RESULTS: Three more RCTs were published since our first review; amounting to a total of 6 studies with 645 migraineurs meeting the inclusion criteria. Meta-analysis of six trials showed that, compared with various controls (placebo, drug therapy, usual care), SMT (with or without usual care) has no effect on migraine intensity/severity measured with a range of instruments (standardized mean difference [SMD] - 0.22, 95% confidence intervals [CI] - 0.65 to 0.21, very low certainty evidence), migraine duration (SMD - 0.10; 95% CI - 0.33 to 0.12, 4 trials, low certainty evidence), or emotional quality of life (SMD - 14.47; 95% CI - 31.59 to 2.66, 2 trials, low certainty evidence) at post-intervention. A meta-analysis of two trials showed that compared with various controls, SMT (with or without usual care) increased the risk of AEs (risk ratio [RR] 2.06; 95% CI 1.24 to 3.41, numbers needed to harm = 6; very low certainty evidence). The main reasons for downgrading the evidence were study limitations (studies judged to be at an unclear or high risk of bias), inconsistency (for pain intensity/severity), imprecision (small sizes and wide confidence intervals around effect estimates) and indirectness (methodological and clinical heterogeneity of populations, interventions, and comparators).
CONCLUSIONS: The effectiveness of SMT for the treatment of migraines remains unproven. Future, larger, more rigorous, and independently conducted studies might reduce the existing uncertainties.