Comparison of Bioabsorbable Magnesium versus Titanium Screw Fixation for Modified Distal Chevron Osteotomy in Hallux Valgus

Table 4

List of previously reported clinical studies on the use of magnesium screws in modified chevron osteotomy (RCT: randomized clinical trial, SF-36: Short Form-36, VAS: visual analogue scale, NRS: numeric rating scale, FAAM: foot and ankle ability measurement).

Author	Year	Study design	# patients	Outcome measures	Follow-up; (mean)	Rate of implant; removal	Complications
Windhagen H et al. [14]	2013	RCT (Mg. vs. Ti.)	26; (13/13)	AOFAS-MTP-IP	6 months	1 in Ti. group; (7.7%)	None
Plass C et al. [15]	2016	Prospective case-series; (Mg. group only)	45	AOFAS-MTP-IP; NRS; FAAM; SF-36	n: 39, 6 weeks; n: 23, 12 weeks; n:8, >26 weeks	None	1 relapse; 1 hallux varus
Plass C et al. [16]	2017	RCT (Mg. vs. Ti.)	26; (13/13)	AOFAS-MTP-IP; FAAM; SF-36; VAS	3 years	1 in Ti. group; (7.7%)	None
Klauser H. [17]	2018	Retrospective comparison; (Mg. vs. Ti.)	200; (100/100)	Clinical findings	Mg. group: 12.2 weeks; Ti. group: 11.7 weeks	None	Soft tissue irritation: 1 vs. 0; Delayed wound healing: 4 vs. 3; Deep infection: 1 vs. 2; Screw fracture: 0 vs. 1
Current study	2018	Retrospective comparison; (Mg. vs. Ti.)	31; (16/15)	AOFAS-MTP-IP; VAS	17.6 months	1 in Ti. group; (5.8%)	Prolonged swelling: 1 vs. 0