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            [0] => Impact of graft diameter on the functional results of anterior cruciate ligament reconstructions by hamstring tendons
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    [etablissement] => Array
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            [0] => hopital ibn jazzar kairouan
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    [nom] => Array
        (
            [0] => Tounsi
        )

    [prenom] => Array
        (
            [0] => Abdelkader
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    [email] => Array
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            [0] => drtounsiabdelkader@gmail.com
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            [0] => 29884948
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Nom prénom / Name Surname: mansi zied
Email: doc.zm@hotmail.fr
Hôpital / Hospital: hopital ibn jazzar kairouan

 
Nom prénom / Name Surname: tounsi abdelkader
Email: drtounsiabdelkader@gmail.com
Hôpital / Hospital: hopital ibn jazzar kairouan

 
Nom prénom / Name Surname: chneti islem
Email: chnetiislem@gmail.com
Hôpital / Hospital: hopital ibn jazzar kairouan

 
Nom prénom / Name Surname: kahlaoui mohamed nejib
Email: mednejibkahlaoui@gmail.com
Hôpital / Hospital: hopital siliana

 
Nom prénom / Name Surname: rbai hedi
Email: rbaihedi@gmail.com
Hôpital / Hospital: hopital ibn jazzar kairouan

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            [0] => knee-acl-didt;

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            [0] => tounsiabdelkaderthese@gmail.com
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    [specialite] => Array
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            [0] => Chirurgie orthopédique et traumatologique
        )

    [pays] => Array
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            [0] => Tunisie
        )

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        (
            [0] => Introduction:
Hamstring tendons are commonly utilized autografts for anterior cruciate ligament reconstruction (ACLR). However, recent instances of failure or revision have been observed with smaller diameter grafts. This study aims to assess the functional outcomes of hamstring tendon technique based on graft diameter.
Methods:
This retrospective study examined 80 patients with ACL involvement who underwent arthroscopic HT ligamentoplasty at University Hospital Ibn El Jazzar Kairouan between 2016 and 2020. Evaluation relied on clinical examination and functional scores (Lysholm Tegner score, IKDC2000 score).
Results:
The average patient age was 30.9±10 years, predominantly male (M/F=7). Graft length averaged 10.49±1.5 cm with a mean diameter of 9.1±0.7 mm. Postoperative rehabilitation was consistent, with an average return to daily activity at 38.4±20 days. Follow-up averaged 31.3±16.7 months. Most patients exhibited positive clinical tests, with the Lachman test hard stop in 86%, Jerk test negative for all, and absent anterior drawer in 89% of cases. Lysholm Tegner and IKDC scores were satisfactory, particularly with a 9 mm graft diameter yielding superior postoperative functional results according to the IKDC score (p=0.02).
Discussion:
Hamstring technique carries a higher failure risk, especially in younger patients, compared to other autografts. Biomechanical studies suggest a minimum graft strength requirement, with diameters ≥8 mm demonstrating better outcomes. Literature supports larger diameters reducing failure risk, with grafts ≥7 mm associated with lower failure rates. Our study corroborates these findings, indicating a 9 mm diameter graft as optimal for postoperative results based on IKDC scores.
Conclusion:
Hamstring tendon reconstruction for ACL ruptures is gaining popularity, yet poses inherent rupture risks. Existing literature underscores the significance of graft diameter, with diameters ≥8 mm significantly lowering failure rates.
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