title: Saphenous nerve injury during harvesting of one or two hamstring tendons for anterior cruciate ligament reconstruction.
abstract: OBJECTIVE
  The aim of this study was to assess whether harvesting of two hamstring tendons (semitendinosus and gracilis) has the same rate of nerve injury as harvesting of the semitendinosus tendon alone, used as a triple graft.
  
  
  METHODS
  Changes in sensitivity relating to injury of the infrapatellar branch of the saphenous nerve were evaluated in 110 patients six months after they underwent anterior cruciate ligament (ACL) reconstruction using hamstring tendons. They were divided into two groups: one in which only the semitendinosus was used and the other, the semitendinosus and gracilis.
  
  
  RESULTS
  The group in which only the semitendinosus was used as a graft presented a nerve injury rate of 36.1%. In the group in which the semitendinosus and gracilis tendons were used, 58.1% of the patients presented altered sensitivity. In the general assessment on all the patients, the nerve injury rate was 50.9%.
  
  
  CONCLUSIONS
  Harvesting the semitendinosus alone and using it in triple form is a viable option for ACL reconstruction and may give rise to fewer nerve injuries relating to branches of the saphenous nerve.
authors.affiliation: School of Medicine, Universidade de Marília, Marília, SP, Brazil.
authors.forename: Vitor Barion Castro
authors.initials: VB
authors.lastname: de Padua
authors.affiliation: School of Medicine, Universidade de Marília, Marília, SP, Brazil.
authors.forename: Paulo Emílio Dourado
authors.initials: PE
authors.lastname: Nascimento
authors.affiliation: School of Medicine, Universidade de Marília, Marília, SP, Brazil.
authors.forename: Sergio Candido
authors.initials: SC
authors.lastname: Silva
authors.affiliation: School of Medicine, Universidade de Marília, Marília, SP, Brazil.
authors.forename: Sergio Marinho
authors.initials: SM
authors.lastname: de Gusmão Canuto
authors.affiliation: School of Medicine, Universidade de Marília, Marília, SP, Brazil.
authors.forename: Guilherme Nunes
authors.initials: GN
authors.lastname: Zuppi
authors.affiliation: School of Medicine, Universidade de Marília, Marília, SP, Brazil.
authors.forename: Sebastião Marcos Ribeiro
authors.initials: SM
authors.lastname: de Carvalho
keywords: Anterior cruciate ligament; Hamstring; Paresthesia