title: Prediction of quadruple hamstring graft diameter for anterior cruciate ligament reconstruction by anthropometric measurements.
abstract: BACKGROUND
  The literature is scanty regarding the anthropometric predictors on the diameter of quadruple hamstring graft obtained in anterior cruciate ligament (ACL) reconstruction in Indian population. Minimum diameter of the graft for ACL reconstruction should be >7 mm to preclude failure. The objective of this study was to assess the prediction of the hamstring graft diameter by several anthropometric parameters including age, thigh circumference, weight, height and body mass index (BMI).
  
  
  METHODS
  46 consecutive patients who had undergone ACL reconstruction by the same surgeon using quadruple hamstring grafts were evaluated. The age, thigh circumference of the normal side, height, weight and BMI were recorded preoperatively and Pearson correlation was done using these parameters with graft diameter measured intraoperatively. Regression analysis in a stepwise manner was undertaken to assess the influence of individual anthropometric parameters on the graft diameter.
  
  
  RESULTS
  There were 44 males and 2 females. Mean age was 29.4 years, mean height was 172.6 cm, mean weight was 70.9 kg, mean BMI was 23.8 kg/m(2), mean thigh circumference was 47.1 cm and mean graft diameter was 7.9 mm. There was a positive correlation individually between the thigh circumference and graft diameter obtained (r = 0.8, P < 0.01, n = 46), and between the height and graft diameter (r = 0.8, P < 0.01, n = 46). On the regression analysis thigh circumference and height were found to be significant predictors of graft diameter giving the following equation: Graft diameter (mm) = 0. 079 height (cm) +0.068 thigh circumference (cm) -9.031.
  
  
  CONCLUSIONS
  Preoperatively using the above equation if graft diameter came out to be <7 mm then alternate options of graft material must be kept in mind in order to prevent failure.
authors.affiliation: Department of Orthopaedic Surgery, J.N. Medical College and Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
authors.forename: Naiyer
authors.initials: N
authors.lastname: Asif
authors.affiliation: Department of Orthopaedic Surgery, J.N. Medical College and Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
authors.forename: Rahul
authors.initials: R
authors.lastname: Ranjan
authors.affiliation: Department of Orthopaedic Surgery, J.N. Medical College and Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
authors.forename: Sohail
authors.initials: S
authors.lastname: Ahmed
authors.affiliation: Department of Orthopaedic Surgery, J.N. Medical College and Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
authors.forename: Aamir B
authors.initials: AB
authors.lastname: Sabir
authors.affiliation: Department of Orthopaedic Surgery, J.N. Medical College and Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
authors.forename: Latif Z
authors.initials: LZ
authors.lastname: Jilani
authors.affiliation: Department of Orthopaedic Surgery, J.N. Medical College and Hospital, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
authors.forename: Owais A
authors.initials: OA
authors.lastname: Qureshi
keywords: Anterior cruciate ligament; Anterior cruciate ligament reconstruction; anthropometry; arthroscopic surgical procedure; arthroscopy; diameter; hamstring graft