Prediction of hamstring tendon autograft diameter using preoperative measurements with different cut-offs between genders

Journal of Experimental Orthopaedics

Original Paper

Seyedreza Hosseini¹  Ali Motevallizadeh¹  Mostafa Shahrezaee²  Mohammad Movahedinia²  Sajjadeh Movahedinia³  Babak Shekarchi⁴  Bentolhoda Salehi⁵ 

[1] Bone Joint and Related Tissues Research Center, Akhtar Orthopedic Hospital, Tehran, Iran;Department of Orthopedic Surgery, Aja University of Medical Sciences, Tehran, Iran;Department of Pathology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran;Radiation Sciences research Center, Aja University of Medical Sciences, Tehran, Iran;School of Medicine, Kerman University of Medical Sciences, Kerman, Iran;

关键词: Hamstring tendon autograft;    ACL reconstruction;    Cross-sectional area;    Sensitivity;    Specificity;   

DOI  :  10.1186/s40634-023-00569-0

 received in 2022-11-30, accepted in 2023-01-06,  发布年份 2023

来源: Springer

【 摘 要 】

PurposeStudies have suggested some predictors for hamstring tendon (HT) autograft diameter based on anthropometric factors and preoperative magnetic resonance imaging (MRI) with variable results. Some authors have attributed the variability to gender differences. This prospective cohort reports the sensitivity and specificity of anthropometric and MRI predictors in males and females separately to determine the difference.MethodsForty-two eligible patients who underwent anterior cruciate ligament reconstruction (ACLR) and MRI in our center were included. ACLR was performed by the senior surgeon using a 4-stranded HT autograft for all patients. A blinded musculoskeletal radiologist measured the cross-sectional area (CSA) of gracilis and semitendinosus tendons using the free-hand region of interest tool for all patients. An orthopaedic resident (PGY4) collected anthropometric factors and measured intraoperative autograft diameter.ResultsMean intraoperative autograft diameter was 8.0 mm. Females had a significantly lower autograft diameter (7.4 vs. 8.2, P < 0.001), smaller gracilis (6.9 vs. 7.9, P = 0.003) and semitendinosus CSA (11.5 vs. 12.8, P = 0.014) compared to males. ROC curve analysis resulted different cut-off values with high sensitivity and specificity for semitendinosus and combined CSA regarding gender.ConclusionBased on the results of this study, CSA of either isolated or combined HTs on preoperative axial MRI, height, and weight are the strongest predictors of intraoperative autograft diameter. It is suggested to consider different cut-offs for males and females to have a better clinical guide for surgeons.Level of evidenceLevel II.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

Fig. 4

Fig. 1