The results of our study suggest that Cobb angle is the most consistent in terms of intra- and inter-observer reliabilities in the assessment of thoracolumbar burst fracture kyphosis.
Rationale: Pediatric femoral shaft combined with ipsilateral femoral neck fractures are very rare but challenging injuries fraught with the development of avascular necrosis, coxa vara, and leg length discrepancy. Majority of the previous reports indicated the neck femur fracture was fixed with cannulated screws or/and pins, femoral shaft fracture was stabilized with a plate and screws. However, we used cannulated screws combined with elastic stable intramedullary nails to minimally invasive procedures treat this type of injury and achieved good follow-up results. Patient concerns: A 7-year-old boy (Case 1) was hospitalized due to a traffic accident resulting in swelling and deformity of the right thigh accompanied by limited mobility of hip and knee. A 5-year-old male child (Case 2) presented with pain and swelling in the bilateral lower limb after fall from approximately 12 feet. Diagnoses: Physical examination, X-ray film, and computed tomography were performed. Both patients were diagnosed with ipsilateral femoral neck and shaft fracture. Interventions: The fractures were reduced closed by image-intensifier imaging. Two partially threaded cancellous screws were used to fix femoral neck fracture, and elastic intramedullary nails were performed to stable the femoral shaft fracture. Postoperatively, the patients were immobilized in a one-and-a-half hip spica cast for six weeks. The internal fixations were removed after one year. Outcomes: Case one was follow-up at 14 months and the other one was followed up for 3 years. And at the last follow-up showed a normal and painless hip function. No clinical complications were found during follow-up visit, including head penetration, implant failure, fracture nonunion, avascular necrosis and hip varus deformity. Lessons: Clinician should carefully check and read relevant imaging data to avoid missed diagnosis. And the internal fixation method described in this paper may be more minimally invasive.
BackgroundIntrathoracic displacement of a humeral head fracture is extremely rare.Only slightly more than 30 cases have been reported. Because few cases have been reported, there is no consensus on how to treat this injury. The etiology, injury mechanism, related lesions and treatment of the injury are diverse.Case presentationA 73-year-old woman presented with multiple fractures of the left ribs, bilateral lung contusions, extensive emphysema of the anterior and posterior chest wall, massive left hemopneumothorax, fracture-dislocation of the proximal humerus and intrathoracic displacement of the humeral head.The patient was sent to the operating room for emergency thoracotomy surgery. The head of the humerus was confirmed to be completely removed from the thoracic cavity during the operation. After discussion with the orthopedic surgeon, the humeral head was discarded considering avascular necrosis, and open reduction and internal fixation were not performed.Three weeks later, the orthopedic surgery team performed reverse shoulder arthroplasty.During follow-up, the patient’s shoulder was free from pain, and its range of movement (ROM) included 110° flexion, 70° abduction, 35° external rotation and 50° internal rotation.ConclusionsIntrathoracic displacement of the humeral head due to proximal humeral fracture is a very rare and serious trauma that requires multidisciplinary treatment. Considering the extremely high risk of humeral head necrosis, actively removing broken bone fragments of the humeral head in the early stage is recommended, and we advocate for shoulder arthroplasty for elderly patients. Detailed preoperative evaluations and individualized operation plans should be made to achieve the best effect.
Background This study aimed to examine the prevalence and clinical findings of the vacuum phenomenon (VP) in closed pelvic fractures. Methods We retrospectively reviewed 352 patients with closed pelvic fractures who presented to our institution from January 2017 to December 2020. Pelvic fractures were diagnosed by plain radiography and computed tomography (CT). The default “bone window” was used for inspection in the cross section. Electronic medical records were consulted by two orthopedic physicians to obtain patient information. The VP of pelvic fracture, fracture classification, injury mechanism, and image data were evaluated, and the demographic parameter data were statistically analyzed. The follow-up time was 12–18 months. Results Among them, 169 were males and 183 were females with ages ranging from 3 to 100 years, with an average of 49.6 ± 19.3 years. VP in pelvic fractures was detected by CT in 109 (31%) of the 352 patients with pelvic fractures. Patients were divided into the high-energy trauma group (278 cases) and fragility fractures of the pelvis (FFP) group (74 cases) according to the injury mechanism. In the high-energy trauma group, 227 cases were treated surgically and 201 cases had bony healing. The healing time was 9.8 ± 5.3 weeks. In the FFP group, 54 cases were treated surgically and 49 cases had bone healing. The healing time was 9.3 ± 3.8 weeks. Fractures progressed in nine patients. VP was mostly located in the sacroiliac joint in our study. Conclusions The incidence of VP in pelvic fractures is statistically high and is affected by many factors, such as examination technique, joint position, population composition, etc. Therefore, the VP is not a reliable sign of pelvic injury. Clinically, we need to determine the nature of VP in conjunction with gas patterns, laboratory tests, history, and physical examination.
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