I.

IV.

We report the results of the treatment of disorders of the distal radioulnar joint with the semi-constrained Aptis prosthesis. Nineteen patients were assessed at a mean follow-up of 7 years. All patients had been operated on previously at the wrist, forearm or elbow. The Disabilities of Arm, Shoulder and Hand score had a mean value of 40, the Patient-Rated Wrist Evaluation score had a mean of 49 and the visual analogue scale for pain had a mean of 3.9. The mean ranges of pronation, supination, wrist flexion and wrist extension were 78°, 76°, 60° and 51°, respectively. The mean grip strength was 23 kg. Complications were noted in ten patients. Eighteen patients would undergo the operation again. The 10-year cumulative survival rate was 84%. The Aptis prosthesis may be a solution to treat patients in whom previous surgery at the distal radioulnar joint has failed. Level of evidence: IV

We report the case of a 14-year-old boy with an isolated Salter-Harris type IV physeal fracture of the distal ulna. Following failed closed reduction, transition to open reduction and pin fixation was required. Six-month follow-up showed a favourable clinical evolution. Evidence suggests that long-term follow-up is needed because of the increased risk of premature physeal closure and subsequent growth disturbances associated with this type of injury.

Introduction Pediatric pelvic fractures are uncommon and are usually the result of a high-energy mechanism. Bilateral symmetric fracture of the iliac bone is an extremely uncommon clinical entity that is not yet classified in the current classification systems of pelvic fractures. It mostly occurs among young patients with a history of a seat-belt injury. Patients usually complain of severe hip pain after an accident. Case Report A 5-year-old male was transported to our hospital after a car accident. He was complaining of vague pain in the pelvic region after he was exposed to an acceleration-deceleration trauma, seated in a children's car seat. Radiograph of the pelvis revealed a rare image of bilateral symmetric iliac fractures. Iliac bone fracture was suspected, which was also evident on pelvis and hip magnetic resonance imaging. Additional ultrasound of the abdomen was negative. He was hospitalized for observation, and after one day, he could be discharged from the hospital without complications. Policlinic control after three, six, and ten weeks showed favorable clinical and radiographic evolution. Conclusion Physicians should be aware of our report, which highlights a patient with the rare clinical condition of a bilateral symmetric fracture of the iliac bone after an acceleration-deceleration trauma. The differential diagnosis of acute hip pain should be considered for young patients. Always keep in mind additional injuries because of the high-energy trauma.