Abstract：
BACKGROUND:The scarf osteotomy is a well-established surgical method for correcting a hallux valgus deformity. It is often combined with an Akin osteotomy. However, clear guidelines defining indication criteria are missing. The purpose of this study was to analyze the radiological outcome after scarf osteotomy in dependence of additional Akin osteotomy. METHODS:This study included 184 patients in whom a hallux valgus deformity was corrected with a scarf osteotomy (group S), and 63 patients in whom an additional Akin osteotomy was performed (group SA). Weight-bearing radiographs were evaluated preoperatively, postoperatively, after 6 weeks, after 3 months and at a follow-up with a mean of 45.4 months. Analysis was made for the following radiological parameters: the intermetatarsal angle (IMA), the hallux valgus angle (HVA), the distal metatarsal articular angle (DMAA), the proximal to distal phalangeal articular angle (PDPAA), and the position of the sesamoids as well as the joint congruity. RESULTS:Radiographic recurrence (HVA > 20°) was detected in 1 patient (1.6% of recurrence) in the SA group, and in 27 patients in the S group (14.7% of recurrence) at follow-up. Outcome between the two groups differed significantly showing reduced loss of HVA correction in the SA group (p < 0.001). The subgroup with a preoperative PDPAA above eight degrees showed significant inferiority of outcome for the S group compared to the SA group. CONCLUSION:Radiological outcome after scarf osteotomy is superior with concomitant Akin osteotomy. A preoperative PDPAA above eight degrees makes additional Akin osteotomy recommendable. LEVEL OF EVIDENCE:Therapeutic, Level III, retrospective comparative series.
journal_name
J Orthop Surg Resjournal_title
Journal of orthopaedic surgery and researchauthors
Kaufmann G,Hofmann M,Ulmer H,Putzer D,Hofer P,Dammerer Ddoi
10.1186/s13018-019-1241-7subject
Has Abstractpub_date
2019-06-26 00:00:00pages
193issue
1issn
1749-799Xpii
10.1186/s13018-019-1241-7journal_volume
14pub_type
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