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  • Title: Atypical tibial tuberosity fracture in an adolescent.
    Author: Jalgaonkar AA, Dachepalli S, Al-Wattar Z, Rao S, Kochhar T.
    Journal: Orthopedics; 2011 Jun 14; 34(6):215. PubMed ID: 21667912.
    Abstract:
    Avulsion fractures of the tibial tuberosity are typically sustained by adolescent males during sporting activities. Tibial tuberosity avulsions with simultaneous proximal tibial epiphyseal fractures are rare injuries. We present an unusual case of Ogden type IIIA avulsion fracture of tibial tuberosity with a Salter Harris type IV posterior fracture of proximal tibial epiphysis in a 13-year-old boy. We believe that the patient sustained the tibial tuberosity avulsion during the take-off phase of a jump while playing basketball due to sudden violent contraction of the quadriceps as the knee was extending. This was then followed by the posterior Salter Harris type IV fracture of proximal tibial physis as he landed on his leg with enormous forces passing through the knee. Although standard radiographs were helpful in diagnosing the complex fracture pattern, precise configuration was only established by computed tomography (CT) scan. The scan also excluded well-recognized concomitant injuries including ligament and meniscal injuries. Unlike other reported cases, our patient did not have compartment syndrome. Anatomic reduction and stabilization with a partially threaded transepiphyseal cannulated screw and a metaphyseal screw followed by early mobilization ensured an excellent recovery by the patient.Our case highlights the importance of vigilance and a high index of suspicion for coexisting fractures or soft tissue injuries when treating avulsion fractures of tibial tuberosity. A CT scan is justified in such patients to recognize complex fracture configurations, and surgical treatment should be directed appropriately to both the fractures followed by early rehabilitation. Patients with such injuries warrant close monitoring for compartment syndrome during the perioperative period.
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