24350Array
(
    [TITRE_TRAVAIL] => Array
        (
            [0] => Epiphyseal bone defect after knee ligamentoplasty
        )

    [etablissement] => Array
        (
            [0] => Mohamed Kassab orthopedic Institute
        )

    [nom] => Array
        (
            [0] => Boussaâdoun
        )

    [prenom] => Array
        (
            [0] => Fawez
        )

    [email] => Array
        (
            [0] => Boussaadounfawez@gmail.com
        )

    [telephone] => Array
        (
            [0] => 53516828
        )

    [auteurs] => Array
        (
            [0] => 
 
Nom prénom: Fawez Boussaâdoun
Email: Boussaadounfawez@gmail.com
Hôpital: Mohamed Kassab orthopedic Institute

 
Nom prénom: Mohamed Samih Kacem
Email: kacemmsamih@gmail.com
Hôpital: Mohamed Kassab orthopedic Institute

 
Nom prénom: Ameni Ammar
Email: ameniammar777@gmail.com
Hôpital: Mohamed Kassab orthopedic Institute

 
Nom prénom: Oussama Hamdi
Email: Oussamahamdi2013@gmail.com
Hôpital: Mohamed Kassab orthopedic Institute

 
Nom prénom: Mahmoud Smida
Email: mahmoud.smida@yahoo.fr
Hôpital: Mohamed Kassab orthopedic Institute

 
Nom prénom: Mohamed Samir Daghfous
Email: samir.daghfous@rns.tn
Hôpital: Mohamed Kassab orthopedic Institute

        )

    [mots_cles] => Array
        (
            [0] => Anterior cruciate ligament , bone defect , ligamentoplasty;

        )

    [event-id] => Array
        (
            [0] => 3663
        )

    [statut] => Array
        (
            [0] => 1
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    [forme] => Array
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            [0] => none
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    [abstract] => Array
        (
            [0] => https://www.sotcot.tn/wp-content/uploads/gravity_forms/1-734bfe19ec36a1528718899bf7a2927f/2024/03/Resume-Fluorose.docx
        )

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            [0] => boussaadounfawez@gmail.com
        )

    [specialite] => Array
        (
            [0] => Chirurgie orthopédique et traumatologique
        )

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

    [texte_abs] => Array
        (
            [0] => Introduction:
During their evolution, bone tunnels created during anterior cruciate ligament (ACL) reconstruction undergo more or less significant morphological changes, with encystment being a rare complication. Through a rare case of tibial tunnel encystment, we will try to elucidate the causes of this complication and its clinical and anatomical consequences.

Case report:
This case is about a 45-year-old patient who underwent ACL reconstruction two and a half years ago and presented with mechanical knee pain. On examination, palpation of the internal joint space was painful, and knee mobility was 6-120°. X-rays showed a bone defect with peripheral condensation along the path of the tibial tunnel, which had widened by 138.89% with an encysted appearance.

Discussion and conclusion:
Encystment of the tunnel after ACL reconstruction is a rare phenomenon and sparsely described in the literature (8 reported cases). Its etiology is unclear. Theories include necrosis, inflammatory reaction to a foreign body, lack of graft Osseointegration, and extravasation of joint fluid into the tunnel. MRI is the key exploration for establishing a positive diagnosis by showing tunnel widening and the formation of a unilocular or multilocular cyst. It also helps differentiate it from infection or foreign body granuloma. Encystment can pose a problem of bone substance loss in case of ACL reconstruction revision.
        )

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