Does dynamic extension splinting or early active motion provide better outcomes post extensor pollicis longus repair? A systematic review.

Introduction: Limited research exists on the post-operative treatment of extensor pollicis longus (EPL) repair (tendon transfer and direct repair). Early active motion (EAM) and dynamic extension splinting (DES) are becoming more common compared to static casting. The aim of this systematic review was to determine whether EAM was superior to DES post EPL direct repair or tendon transfer. Outcomes of interest included range of motion, strength, and adverse events.

Methods: A systematic search of AMED, EBSCO health database (CINAHL, MEDLINE, and SPORTDiscus), and Scopus was completed. Randomised control trials or cohort studies were included if they followed either an EAM or DES rehabilitation protocol and assessed total active motion, grip strength, pinch strength, or range of motion post EPL surgical repairs. Data extracted included the surgical procedure, rehabilitation protocols, and results. The Downs and Black checklist for clinical trial quality assessment was utilised to assess the methodological quality.

Results: Six studies met the inclusion criteria. Five studies included DES and two studies included EAM. Both interventions resulted in improvements in ROM, grip strength and pinch strength with neither intervention being superior. There was no increase in adverse outcomes by using EAM or DES. The risk of bias following assessment of methodological quality of included studies ranged from good to poor.

Discussion: The use of EAM should be considered post EPL repair or tendon transfer. EAM does not result in superior outcomes post EPL repair compared to DES, equally EAM does not appear to be inferior compared to DES.