Quantitative somatosensory assessments in patients with persistent pain following groin hernia repair: A systematic review with a meta-analytical approach.

The total mean MPT difference was -2.8 mN (95% CI = -6.8, -1.2, back-transformed), indicating near-significantly increased hyperalgesia (gain of sensory function) for punctate mechanical stimulation (P = 0.02).

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The study importantly reports highly significant increases in PPT following re-surgery supporting that meshectomy and selective neurectomy may slow the “pain generator”.

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