Table 3.

Excluded studies. List of all studies excluded from the analyses following full-text assessment, and the underlying detailed exclusion criteria.

Study	Reasons for exclusion
Chen41	Similar data set to previous publication
Crisci42	Incomplete data reporting and inappropriate outcome assessment
Hong65	Non-randomized allocation of heterogenic animals, non-standard injury models, high dropout rate and ultrasound application without coupling medium
Mense66	Reported none of the predefined outcomes of interest
Oliveira67	Incomplete data reporting, non-standardized nerve injury model, non-standardized measurement procedures and duration of experiments