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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



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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Dr. RPA Janssen
RPA Janssen Orthopedie B.V.
Coöperatie Orthopedie Groot Eindhoven
Orthopedisch Centrum Máxima
Máxima Medisch Centrum (MMC)

Bezoekadres MMC Eindhoven:
Ds. Th. Fliednerstraat 1
Ingang Zuid
5631 BM  Eindhoven
(Spreekuur en operaties)

Bezoekadres MMC Veldhoven:
De Run 4600
5504 DB  Veldhoven

Postbus 90052
5600 PD  Eindhoven

Tel.: 040 88 88 600
(Afspraken bureau Orthopedie)

Fax: 040 88 85 938

Externe bronnen:
Cooperatie Orthopedie Groot Eindhoven
Máxima Medisch Centrum
Orthopedisch Centrum Máxima
Sportklinisch Expertisecentrum
FC Kruisband
Nicky van Melick

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