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

Table 1

Demographic characteristics of the patients (F: female, M: male, R: right, L: left, HVA: hallux valgus angle, IMA: intermetatarsal angle, VAS: visual analogue scale, AOFAS-MTP-IP: American Orthopaedic Foot and Ankle Society hallux metatarsophalangeal-interphalangeal scale, ROM: range of motion).

Variable	Magnesium group	Titanium group	Significance
	(n: 16, #foot: 17)	(n: 15, #foot: 17)
Age	49.9 ± 15.1	48.5 ± 14.6	0.796
Sex	2 M /14 F	2 M / 13 F	0.675
Side (right /left)	7 R /10 L	10 R / 7 L	0.247
Preop HVA	31.0 ± 5.9	30.1 ± 6.2	0.675
Preop IMA	12.7 ± 1.8	12.1 ± 2.3	0.424
Preop VAS	4.7 ± 2.1	5.1 ± 1.9	0.620
Preop AOFAS-MTP-IP scale	71.2 ± 8.3	69.2 ± 9.4	0.505
Preop ROM			0.360
Normal	10	12
Minimal	7	5
Severe	0	0
Follow-up (months)	19.0 ± 6.8	16.2 ± 6.19	0.234

MTP joint ROM (dorsiflexion plus plantar flexion), N: normal (>75°), M: minimal restriction (30°-74°), and S: severe restriction (<30°).