title: Flexor hallux tendon transfer: comparative study through double or single approach.
abstract: OBJECTIVE
  To quantify the FHL length difference obtained through a single approach and by a double combined approach.
  
  
  METHODS
  16 fresh cadavers, a total of 32 feet, were used to measure the FHL graft length. With the cadaver positioned in ventral decubitus, a posteromedial incision in the ankle and a second incision in the plantar cavus were performed.
  
  
  RESULTS
  The average gain of tendon's length (GTL) was of 42.43 mm, the lowest value being 32 mm and the largest 48 mm. The comparative analysis of the GTL on the right and left sides through the paired "t" Test does not show statistical differences, with a p-value = 0.463 and a statistical power of 0.1443. The height analysis of the sample and the right and left GTL performed through linear regression do not show statistically significant differences, with a p-value of 0.38311 and 0.82640, respectively.
  
  
  CONCLUSIONS
  Harvesting the FHL graft using a double combined approach yields a 42.43 mm length gain in comparison to harvesting using the single approach.
authors: 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, Institute of Orthopedics and e Traumatology, São Paulo, SP, Brazil.
authors: Marcos Hideyo
authors: MH
authors: Sakaki
authors: 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, Institute of Orthopedics and e Traumatology, São Paulo, SP, Brazil.
authors: Alexandre Leme
authors: AL
authors: Godoy-Santos
authors: 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, Institute of Orthopedics and e Traumatology, São Paulo, SP, Brazil.
authors: Rafael Trevisan
authors: RT
authors: Ortiz
authors: 2. Hospital São Lucas, Natal, RN, Brazil, 2. Hospital São Lucas, Natal, RN, Brazil, Hospital São Lucas, Natal, RN, Brazil.
authors: Antônio
authors: A
authors: Araújo
authors: 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, 1. Institute of Orthopedics and e Traumatology, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas, Institute of Orthopedics and e Traumatology, São Paulo, SP, Brazil.
authors: Túlio Diniz
authors: TD
authors: Fernandes
keywords: Achilles tendon; Hallux; Tendinopathy