Morphometric analysis of the extensor tendons of the hallux and potential implications for tendon grafting

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Abstract

Although several tendon sources are available for reconstructive surgical procedures, all have one or more shortcomings. The aim of this work was to evaluate if the extensor tendons of the hallux showed anatomical characteristics that could make them an additional source for tendon grafting procedures. The authors performed a detailed morphometric analysis of the extensor tendons of the hallux in 26 lower limbs in order to evaluate the putative association of anatomical variants with hallux valgus, and to attempt to assess the feasibility of using part of the extensor apparatus of the hallux as a source of tendon for grafting procedures. An accessory extensor hallucis longus tendon was found in 92.3% of cases. The extensor hallucis brevis tendon length was 10.5 ± 0.6 cm; its width was 0.5 ± 0.1 cm, and its thickness varied between 1-2 mm, making it a potentially good candidate as a source of tendon grafts. Several anatomical variations were observed, namely the fusion of the tendons of the extensor hallucis brevis and the accessory extensor hallucis longus muscles in the distal part of the foot. This new therapeutic option, if implemented, would possibly increase the supply of autogenous donor tissue for reconstructive procedures, thereby enhancing the reconstructive surgeon's armamentarium.

Original languageEnglish
Pages (from-to)11-18
Number of pages8
JournalEuropean Journal of Anatomy
Volume14
Issue number1
Publication statusPublished - 1 May 2010

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Hallux
Tendons
Reconstructive Surgical Procedures
Hallux Valgus
Foot
Lower Extremity
Tissue Donors
Transplants

Keywords

  • Extensor hallucis brevis
  • Extensor hallucis longus
  • Tendon injuries
  • Tissue graft
  • Variation

Cite this

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title = "Morphometric analysis of the extensor tendons of the hallux and potential implications for tendon grafting",
abstract = "Although several tendon sources are available for reconstructive surgical procedures, all have one or more shortcomings. The aim of this work was to evaluate if the extensor tendons of the hallux showed anatomical characteristics that could make them an additional source for tendon grafting procedures. The authors performed a detailed morphometric analysis of the extensor tendons of the hallux in 26 lower limbs in order to evaluate the putative association of anatomical variants with hallux valgus, and to attempt to assess the feasibility of using part of the extensor apparatus of the hallux as a source of tendon for grafting procedures. An accessory extensor hallucis longus tendon was found in 92.3{\%} of cases. The extensor hallucis brevis tendon length was 10.5 ± 0.6 cm; its width was 0.5 ± 0.1 cm, and its thickness varied between 1-2 mm, making it a potentially good candidate as a source of tendon grafts. Several anatomical variations were observed, namely the fusion of the tendons of the extensor hallucis brevis and the accessory extensor hallucis longus muscles in the distal part of the foot. This new therapeutic option, if implemented, would possibly increase the supply of autogenous donor tissue for reconstructive procedures, thereby enhancing the reconstructive surgeon's armamentarium.",
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AU - Santos, António

AU - Goyri-O'Neill, João

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AB - Although several tendon sources are available for reconstructive surgical procedures, all have one or more shortcomings. The aim of this work was to evaluate if the extensor tendons of the hallux showed anatomical characteristics that could make them an additional source for tendon grafting procedures. The authors performed a detailed morphometric analysis of the extensor tendons of the hallux in 26 lower limbs in order to evaluate the putative association of anatomical variants with hallux valgus, and to attempt to assess the feasibility of using part of the extensor apparatus of the hallux as a source of tendon for grafting procedures. An accessory extensor hallucis longus tendon was found in 92.3% of cases. The extensor hallucis brevis tendon length was 10.5 ± 0.6 cm; its width was 0.5 ± 0.1 cm, and its thickness varied between 1-2 mm, making it a potentially good candidate as a source of tendon grafts. Several anatomical variations were observed, namely the fusion of the tendons of the extensor hallucis brevis and the accessory extensor hallucis longus muscles in the distal part of the foot. This new therapeutic option, if implemented, would possibly increase the supply of autogenous donor tissue for reconstructive procedures, thereby enhancing the reconstructive surgeon's armamentarium.

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