Hamstring lengthening in females with cerebral palsy have greater effect than in males

Hank White, Juanita Wallace, Janet Walker, Sam Augsburger, Vishwas R. Talwalkar, Ryan D. Muchow, Henry Iwinski

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Children with spastic diplegia cerebral palsy often demonstrate crouched gait patterns, and typically undergo hamstring lengthenings. The objective of this retrospective study was to determine if the surgical response to medial and lateral hamstring lengthenings is different between males and females. Preoperative and postoperative kinematic data of 109 (71 males and 38 females) patients with cerebral palsy were evaluated. Females demonstrated larger decreases in popliteal angle, larger decreases in mid-stance knee flexion, and higher incidences of knee hyperextension postoperatively. Results indicate that females have larger responses to hamstring lengthenings than males.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalJournal of Pediatric Orthopaedics Part B
Issue number4
StatePublished - Jul 1 2019

Bibliographical note

Publisher Copyright:
© 2019 The Author(s). Published by Wolters Kluwer Health, Inc.


  • cerebral palsy
  • gait
  • hamstring muscles
  • knee kinematics
  • orthopaedic procedures
  • sex
  • spastic diplegia
  • tenotomy

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Orthopedics and Sports Medicine


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