Title: Screwless scarf osteotomy for hallux valgus: Evaluation of radiologic correction
Authors: Van Doninck, Dries ×
Verschueren, Thomas
Matricali, Giovanni
Van Opstal, Nick
Scheys, Lennart
Vandeputte, Geoffroy #
Issue Date: 2016
Publisher: Arnette Blackwell
Series Title: Foot and Ankle Surgery
Abstract: Background
The scarf osteotomy is a standard procedure to correct hallux valgus. Recent modifications in the technique allow for important translations of the bone fragments without the need for screw fixation. We performed the first prospective analysis of radiographic parameters after a screwless scarf osteotomy. Prospective study of pre- and postoperative standing radiographs of the feet let us quantify angle reduction and shortening, lengthening or lowering of the first metatarsal.

100 patients undergoing a screwless scarf osteotomy were evaluated radiographically before and after surgery. The 1-2 IM angle, HVA, length of the first metatarsal, protrusion length and height of the first metatarsal head were measured.

The mean 1-2 IM angle was reduced significantly, to a normal range. The mean reduction of the first metatarsal length and protrusion length was 0.3 and 0.14 cm respectively. The metatarsal head was lowered 0.3 cm on average.

A minimal mean reduction of the first metatarsal length was observed, but it is possible to lengthen the first metatarsal if necessary. In 23% of cases, an increase of protrusion length was obtained. The screwless scarf osteotomy results in a good correction of the 1-2 IM angle and HVA. If necessary, plantarisation of the first metatarsal head could be obtained. Secondary displacement was seen in 1 patient.

Level of evidence
IIa, prospective controlled trial.
ISSN: 1268-7731
Publication status: accepted
KU Leuven publication type: DI
Appears in Collections:Clinical Residents Medicine
Organ Systems (+)
× corresponding author
# (joint) last author

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