title: Correlation between body mass index and quadrupled hamstring tendon autograft size in ACL reconstruction.
abstract: OBJECTIVE
  the aim of this study was to assess the relationship of patient weight, height and body mass index (BMI) with the size of the quadrupled hamstring tendon used in anterior cruciate ligament (ACL) reconstruction.
  
  
  METHODS
  from patient records, we retrospectively assessed the weight, height, BMI and graft sizes of 126 patients who underwent ACL reconstruction using a quadrupled hamstring tendon autograft between January 2010 and January 2013 at our institution. The data obtained from perioperative measurements were studied using correlation analysis.
  
  
  RESULTS
  statistically significant relationships were found between patient height and graft diameter (p= 0.033,r= 0.19) and between patient weight and graft diameter (p< 0.0001,r= 0.33). No statistically significant relationships were found between graft diameter and BMI or between graft length and patient height, weight and BMI (p> 0.05).
  
  
  CONCLUSIONS
  patient height and weight were found to be related to quadrupled hamstring graft diameter in our patient population. BMI was not related to the quadrupled hamstring graft size. The exact size of the graft cannot be predicted preoperatively on the basis of these variables.
  
  
  METHODS
  Level IV, retrospective case series.
authors.affiliation: Department of Orthopaedic Surgery, Ankara Mevki Military Hospital, Ankara, Turkey.
authors.forename: Zafer
authors.initials: Z
authors.lastname: Atbaşi
authors.affiliation: Department of Orthopaedics and Traumatology, Bakirkoy Dr. Sadi Konuk Training and Research Hospital, Istanbul, Turkey.
authors.forename: Ersin
authors.initials: E
authors.lastname: Erçin
authors.affiliation: Department of Orthopaedics and Traumatology, Gulhane Military Academy, Ankara, Turkey.
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Erdem
authors.affiliation: Department of Orthopaedics and Traumatology, Acibadem Hospital, Istanbul, Turkey.
authors.forename: Tuluhan Yunus
authors.initials: TY
authors.lastname: Emre
authors.affiliation: Department of Orthopaedic Surgery, Ankara Mevki Military Hospital, Ankara, Turkey.
authors.forename: Halis Atil
authors.initials: HA
authors.lastname: Atilla
authors.affiliation: President Guard Regimen, Ankara, Turkey.
authors.forename: Adem
authors.initials: A
authors.lastname: Parlak
keywords: anterior cruciate ligament; body mass index; hamstring; reconstruction; tendon size