title: [Surgical treatment of talocalcaneal coalition : Experience with 80 cases of pediatric or adolescent patients].
abstract: BACKGROUND
  There is still a controversial discussion on the treatment of talocalcaneal coalition with and without planovalgus deformity. From 2002-2014 80 cases of talocalcaneal coalition in children and adolescents under 18 years of age were surgically treated by J. Hamel. The objective of this study is a retrospective analysis, especially of unfavourable results.
  
  
  METHODS
  Patients with minimum follow up of 12 months were included (35.7 months on average). In 31 cases treatment consisted of resection and fat-grafting (group 1), in 26 additional cases tarsal osteotomy was added because of planovalgus-deformity (group 2), and in 23 cases primary fusion of the talocalcaneal joint was performed (group 3).
  
  
  RESULTS
  In group 1 one patient was lost to follow-up early with a severe peroneal spasticity and unknown further course. Two further patients still had remarkable pain after 15 months, and another patient had to undergo secondary fusion because of persistent pain. In group 2 secondary fusion was undertaken in two cases and offered in four other cases. In group 3 two patients still suffered from moderate tarsal pain, although complete fusion occurred; one of these patients underwent bilateral treatment. All other patients were pain free or nearly pain free on the last follow-up visit, with marked improvement in comparison to the preoperative situation.
  
  
  CONCLUSIONS
  Surgical treatment of talocalcaneal coalition is successful in most cases in the short to medium follow-up, but unfavourable results are not uncommon and may require secondary fusion. Differential indication between resection, additional deformity correction, or primary fusion seems to be most important.
authors.affiliation: Zentrum für Fuß und Sprunggelenk München, Englschalkinger Straße 12, 81925, München, Deutschland. J.Hamel@t-online.de.
authors.forename: J
authors.initials: J
authors.lastname: Hamel
authors.affiliation: Zentrum für Fuß und Sprunggelenk München, Englschalkinger Straße 12, 81925, München, Deutschland.
authors.forename: M
authors.initials: M
authors.lastname: Nell
authors.affiliation: Radiologie im Josephinum, Schönfeldstraße 16, 80539, München, Deutschland.
authors.forename: C
authors.initials: C
authors.lastname: Rist
mesh_terms: D000293:Adolescent; D018771:Arthralgia / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control*; D001174:Arthrodesis / Q000009:adverse effects / Q000379:methods*; D002648:Child; D003131:Combined Modality Therapy / Q000009:adverse effects / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D010027:Osteotomy / Q000009:adverse effects / Q000379:methods*; D012189:Retrospective Studies; D013380:Subtalar Joint / Q000002:abnormalities* / Q000601:surgery*; D013580:Synostosis / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D016896:Treatment Outcome
keywords: Adolescents; Deformities; Osteotomy; Talocalcaneal joint; Tarsus osseus