“…A total of 20 studies reported on postoperative metacarpophalangeal stability (Abrahamsson et al., 1990; Başar et al., 2014, 2020; Beauperthuy and Burke, 1997; Crowley et al., 2013; Delma et al., 2022; Huber et al., 1997; Kara et al., 2019; Kastenberger et al., 2021; Kozin, 1995; Lee et al., 2020; Moharram, 2013; Osterman et al., 1981; Patel et al., 2022; Rocchi et al., 2014; Saetta et al., 1992; Sollerman et al., 1991; Sourmelis, 1997; Vihtonen et al., 1993; Weiland et al., 1997). Seven studies objectively or subjectively compared stability with the unoperated thumb, five studies reported the number of patients with valgus stress testing of the thumb showing ≤20° and eight studies subjectively reported the number of patients with clinically stable MCP joints.…”