title: The value of Weight-Bearing CT scan in the evaluation of subtalar distraction bone block arthrodesis: Case report.
abstract: Subtalar distraction arthrodesis is performed in certain situations where there is loss of subtalar height, reduced talar declination and evidence of anterior tibiotalar impingement. Standard evaluation includes the assessment of the lateral talocalcaneal angle, calcaneal pitch, talocalcaneal height and talar declination angle on a weight bearing lateral radiograph. We present a case of erosive valgus subtalar osteoarthritis with subtalar collapse managed with a subtalar distraction arthrodesis. A weight bearing CT (WB-CT) scan was used in the assessment. The value of WB-CT for this indication is discussed, along with a discussion on surgical technique, complications and future directions.
authors.affiliation: Institute for Foot and Ankle reconstruction, Mercy Medical Center, Baltimore, U.S.A. Electronic address: matthewwelck@doctors.org.uk.
authors.forename: M J
authors.initials: MJ
authors.lastname: Welck
authors.affiliation: Institute for Foot and Ankle reconstruction, Mercy Medical Center, Baltimore, U.S.A.
authors.forename: M S
authors.initials: MS
authors.lastname: Myerson
mesh_terms: D001174:Arthrodesis / Q000379:methods; D017760:Bone Malalignment / Q000000981:diagnostic imaging* / Q000601:surgery; D016025:Bone Transplantation; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000000981:diagnostic imaging* / Q000601:surgery; D013380:Subtalar Joint / Q000000981:diagnostic imaging* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016474:Weight-Bearing
keywords: Bone block arthrodesis; Subtalar distraction arthrodesis; Talar declination; Weight bearing CT