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            [0] => Osteochondritis dissecans in an adult: A case report
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            [0] => hopital la Rabta
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            [0] => Chaabouni
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    [prenom] => Array
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            [0] => Anis
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Nom prénom: Chaabouni Anis
Email: anischaabouni96@gmail.com
Hôpital: La Rabta

 
Nom prénom: Klif Mohamed Ali
Email: dalykhlif1@yahoo.fr
Hôpital: La Rabta

 
Nom prénom: Abcha Yosri
Email: abcha_yosri@hotmail.fr
Hôpital: La Rabta

 
Nom prénom: Ben Ayed Mahdi
Email: b.ayed.mehdi@gmail.com
Hôpital: La Rabta

 
Nom prénom: Zitouna Khaled
Email: kh.zitouna@laposte.net
Hôpital: La Rabta

 
Nom prénom: Barsaoui Maher
Email: barsaoui.maher@yahoo.fr
Hôpital: La Rabta

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    [mots_cles] => Array
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            [0] => Osteochondritis dissecans, Knee, adult;

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            [0] => Chirurgie orthopédique et traumatologique
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            [0] => Tunisie
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            [0] => Osteochondritis dissecans in an adult: A case report


Introduction:
Osteochondritis dissecans (OCD) is a necrosis of the subchondral bone and overlying cartilage. This condition predominantly affects adolescents, particularly males, but in rare cases, it can be diagnosed in adults. In this report, we present a case of OCD in a 63-year-old woman.

Materials and Methods:
The patient presented with mechanical right knee pain following a closed trauma occurring 1 month prior. She experienced a limp while walking. 
On examination, the knee was dry and cool. There was evidence of medial meniscal syndrome without other abnormalities noted on the examination.

Results:
Knee radiography revealed narrowing of the medial femoro-tibial joint space and a nodular image within a defect in the medial condyle classified as type IIa according to Bedouelle's classification. A long-leg radiograph showed a 3° varus alignment. MRI demonstrated a cystic lesion in the medial condyle, with mild T2 hyperintensity and T1 hypointensity, surrounded by a hypointense rim on T1, along with thickening of the articular cartilage, without evidence of fissure or detachment. The fragment measured 13 mm anteroposteriorly, 9 mm transversely, and 2.5 mm craniocaudally. The diagnosis of OCD was established, and the patient was scheduled for right knee unicompartmental arthroplasty.  

Conclusion : 
In adults, osteochondritis dissecans (OCD) requires individualized treatment approaches due to its varied clinical presentations and complexities.
Unicompartmental knee arthroplasty (UKA) in the context of osteochondritis dissecans (OCD) among adults with knee arthritis could be an effective surgical option.
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