Magnetic Resonance Imaging Manifestations of Annular Ligament Injuries in Children With Monteggia Fractures.

Background: Magnetic resonance imaging (MRI) is commonly performed in children with elbow injuries to visualize soft tissues such as the annular ligament. Herein, we investigated the MRI manifestations of annular ligament injuries in children with Monteggia fractures following attempted closed reduction.

Methods: The clinical and imaging data of 88 children with acute Monteggia fractures treated at our hospital between 2015 and 2019 were analyzed.

Irreducible anteromedial radial head dislocation without fracture caused by transposed biceps tendon in an adult: A case report and literature review.

Irreducible anteromedial radial head dislocation (IARHD) caused by transposed biceps tendon is rare. Delayed diagnosis and surgical failure often occur. A 46-year-old fisherman presented with 10 days history of painful swelling and restricted movement of his right elbow due to strangulation injury by a fishing boat cable.

[Application of annular ligament reposition and repair via Henry's approach for Monteggia fracture in children].

Objective: To explore the effectiveness of annular ligament reposition and repair via Henry's approach for Monteggia fracture in children.

Methods: A clinical data of 21 children with Monteggia fractures was retrospectively analysed, who underwent open reduction of the radial head and annular ligament reposition and repair via Henry's approach between May 2015 and July 2019. There were 11 boys and 10 girls with an average age of 8 years and 1 month (range, 4 years and 5 months to 14 years and 4 months).

Treatment of missed Monteggia fracture with intact annular ligament after an interval of 9 years: a case report and literature review.

Objective: Missed Monteggia fractures are commonly observed among children. Both the interval from the injury to surgery and the patient's age at operation are thought to be correlated directly with the success of the surgery and prognosis. The aim of the present work was to report one interesting adult case of a missed Monteggia fracture with an intact annular ligament 9 years after injury and the outcomes at a 7-year follow-up.

Neuroprotective effect of methylprednisolone combined with placenta-derived mesenchymal stem cell in rabbit model of spinal cord injury.

The aim of this study was to assess the ability of the combination treatment of methylprednisolone (MP) and placenta-derived mesenchymal stem cells (PDMSCs) in a rabbit model of spinal cord injury (SCI). Rabbits were randomly divided into four groups: group 1 (control), group 2 (MP), group 3 (PDMSCs) and group 4 (MP + PDMSCs). In all groups, the spinal cord injury model was created by the weight drop method.

Biomechanical analysis of the annular ligament in Monteggia fractures using finite element models.

Background: The pathogenesis of Monteggia injuries remains controversial. The current study biomechanically explored the pathological changes during Monteggia fractures using finite element analysis.

Methods: Two cadaveric forearm specimens underwent computed tomography in both the prone and supine positions.

Mismatch of AO anatomically shaped distal humeral plate with humeral shaft forward flexion angulation in adult Chinese population.

Background: LCP extra-articular distal humerus plate (LCPEA) designed by AO has been introduced as an anatomically shaped plate that improves the results of surgical fixation in extra-articular distal humeral shaft fractures. However, no study analyzed whether LCPEA matches humeral shaft forward flexion angulation (FFA).

Objective: The aims of this study were to evaluate the morphological discrepancies between LCPEA and the humeral shaft FFA in Chinese cadaveric dried adult humeri and to propose a further design of pre-contoured plates to accommodate the FFA.