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Prediction of length and diameter of hamstring tendon autografts for knee ligament surgery in Caucasians

Prediction of length and diameter of hamstring tendon autografts for knee ligament surgery in Caucasians

Janssen RPA, Velden van der MJF, Besselaar van den M, Reijman M
Knee Surg Sports Traumatol Arthrosc 2017;25(4):1199-1204

 

ABSTRACT

Purpose: Prediction of hamstring tendon autograft size facilitates preoperative planning of knee ligament surgery and may reduce the need for allografts in complex knee reconstructions. The aim of this study was to analyze whether length and diameter of hamstring tendon autografts can be predicted pre-operatively with anthropometric parameters and patient characteristics.

Methods: In this observational study, 725 consecutive Caucasian patients scheduled for ACL reconstruction were included. Pre-operatively gender, age, height and weight were recorded. After harvest, tendon lengths of both gracilis- and semitendinosus tendons were measured. Diameter of the final four-strand hamstring autograft was recorded. Relationship between length and diameter of tendon grafts and different anthropometric parameters were assed by linear and logistic regression analyses.

Results: Mean lengths of the semitendinosus and gracilis tendon autografts were 28.9 ± 3.1 cm and 27.7 ± 3.0 cm respectively. Length of the gracilis and semitendinosus grafts was independently related to patient height. Female gender was correlated with smaller graft diameter. One in nine female patients had a diameter < 8 mm. The ratio in men was 1 in 36.

Conclusion: Hamstring autograft length and size can be predicted in Caucasians. Length of the gracilis and semitendinosus tendons was related to patient height. Smaller graft diameter was related to female gender.

Keywords: hamstring; tendon; autograft; length; diameter; knee ligament reconstruction

Level of Evidence: II

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RPA Janssen, MD PhD 
Orthopaedic Surgeon
Orthopaedic Associates Eindhoven Greater Area
Orthopedic Center Máxima
Máxima Medical Center (MMC)

Visiting adress MMC Eindhoven:
Ds. Th. Fliednerstraat 1
Ingang Zuid
5631 BM  Eindhoven
The Netherlands 
(outpatient clinic and surgery)

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De Run 4600
5504 DB  Veldhoven
The Netherlands
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Mail adress:
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5600 PD  Eindhoven
The Netherlands

Tel. 0031 (0)40 88 88 600
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Fax: 0031 (0)40 88 85 938
www.rpajanssen.com 

Links:
Orthopaedic Associates Eindhoven Greater Area
Máxima Medical Center
Orthopaedic Center Máxima
 

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