The Austin Bunionectomy has probably become one of the most popular procedures for the treatment of hallux abducto valgus. It is generally only used for mild to moderate cases The ā€˜Vā€™ osteotomy to correct the alignment of the first metatarsal is intrinsically stable but occasionally there is an issue with a displacement of the distal fragment. Recently and analysis of the stability of one screw versus a two screw fixation was published that showed that the two screws fixation was being considerable more stable under the loads that they were tested at. Under the loads used in the study, all of the single screw fixations failed.

Ref: Rigby RB, Fallat LM, Kish JP: Axial loading cross screw fixation for the Austin bunionectomy. J Foot Ankle Surg. 2011 Sep-Oct;50(5):537-40.