title: [Observation on pathological changes of the medial aspect of the first metatarsal head of hallux valgus].
abstract: OBJECTIVE
  To observe pathological characteristic of bone and soft tissue of the medial aspect of the first metatarsal head in order to investigate the pathogenesis of hallux valgus.
  
  
  METHODS
  One hundred and twenty-three patients with hallux valgus (235 feet) were obtained from August 2003 to December 2004 in our department. The bone and soft tissue of the medial aspect of the first metatarsal head were taken out from the incision. The pathological conditions of specimen were observed by HE stain.
  
  
  RESULTS
  The pathological changes included: degeneration and desmoplasia around the attachment point of tendon and joint capsule, reactive hyperplasia of periost, decreasing of bone trabecula, cartilaginification of periost, cortical bone and tendon insertion, bone formation and osteoclasts response.
  
  
  CONCLUSIONS
  The pathological changes of the medial aspect of the first metatarsal head of hallux valgus presented extensive chronic inflammation.
authors.affiliation: Department of Orthopaedics of Wangling Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China. wjm5734@263.net
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Wen
authors.forename: Yun
authors.initials: Y
authors.lastname: Tong
authors.forename: Feng-Yue
authors.initials: FY
authors.lastname: Han
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Sun
authors.forename: Wei-Dong
authors.initials: WD
authors.lastname: Sun
authors.forename: Zhi-Cheng
authors.initials: ZC
authors.lastname: Sang
authors.forename: Hai-Wei
authors.initials: HW
authors.lastname: Hu
authors.forename: Xin-Xiao
authors.initials: XX
authors.lastname: Lin
authors.forename: Xia-Bo
authors.initials: XB
authors.lastname: Wu
authors.forename: Zhao
authors.initials: Z
authors.lastname: Liang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006215:Hallux Valgus / Q000473:pathology*; D006801:Humans; D008297:Male; D008682:Metatarsal Bones / Q000473:pathology*; D008875:Middle Aged