Background Acute Monteggia fracture (AMF) is defined as a fracture of the proximal ulna combined with a dislocation of the radial head, with less than 1 percent prevalence in pediatric patients with an elbow injury. This retrospective study aimed to compare the efficacy of two treatment methods for oblique ulnar fracture AMF Bado type I in children. Methods In this retrospective study, 28 children with oblique ulnar fracture acute Monteggia injury Bado I were included. Patients was divided into two groups: In the EIN group 16 patients were fixed with elastic intramedullary nail after reduction, and in the LCP group 12 patients were fixed with locking compression plate after reduction. Operation time and blood loss were recorded and the patients were assessed clinically by the Mayo Elbow Performance Score (MEPS), range of movement(ROM) and range of rotation(ROR). Results Twenty-eight patients were accessible for durable follow-up, with a mean age of 7.7 ± 1.3 years, follow up by 33.7 ± 5.1 months. The average operation time was 48.1 ± 9.2 min for the EIN group and 67.1 ± 7.2 min for the LCP group. The average blood loss was 8.2 ± 2.3 ml for the EIN group and 18.8 ± 3.8 ml for the LCP group. The average operation time and average blood loss in the EIN group are significant less than the LCP group. Mean MEPS, ROM, ROR in both group improved significantly before sugery to three months after surgery, and maintained very good results at last follow up. There is no significant difference between the EIN group and the LCP group in MEPS, ROM and ROR. Conclusions Oblique ulnar fracture Bado type I acute monteggia fracture in pediatric patients fixed by EIN and LCP can both get good mid-term results measured by MEPS, ROM and ROR, Fixed by EIN have shorter operation time and less blood loss than fixed by LCP.
BackgroundGlucose 6-phosphate-isomerase deficiency (GPI) is an uncommon autosomal recessive genetic disorder characterized by chronic asphoric hemolytic anemia, jaundice, and hepatospleenomegaly of varying degrees. Avascular necrosis of the femoral head in children may be caused by Legg-calve-perthes disease or hematological diseases. However, to date, there is no literature reporting on femoral head avascular necrosis as a complication of GPI.Case presentationHerein we report a 6-year-old child admitted with no pain and abnormal gait in both lower extremities for 3 years, the patient received a genetic inspection and radiology test. Full-exon detection and Sanger sequencing verification were performed on the children and their parents C. 553T>A homozygous missense mutation (NM_ 001289790, F 185 I) was found in exon 6 of the GPI gene, which was inherited from parents. The radiology test showed avascular necrosis of the bilateral femoral head. The patient received traction and wore a spica splint every night and non-weight bearing hip joint rehabilitation every day for 12 months, after which, the gait of the femoral head of this patient improved significantly, and follow up radiation results showed the area of avascular necrosis of the femoral head had decreased.ConclusionCareful investigation of GPI children with abnormal gait is recommended to avoid misdiagnosis, GPI combined with avascular necrosis of the femoral head should be considered as a differential diagnosis in GPI children with abnormal gait.
This study aimed to assess the surface electromyogram (sEMG) signal characteristics of the muscle around the hip joint after Pemberton osteotomy in children with unilateral developmental dysplasia of the hip (DDH).A total of 21 children with unilateral DDH who had received Pemberton osteotomy were selected as the DDH group, and 21 healthy children of the same age were selected as the control group. The children in both groups were tested using sEMG, the Root mean square (RMS) values of the tensor fascia lata, rectus femurs, and medial head of the hamstring and gluteus maximum on both sides in standing and walking status were recorded. The value on the affected side in the DDH group was compared with the value on the healthy side himself and the value in the control group.The mean postoperative follow-up in the DDH group was 27.76 ± 24.30 months. The RMS value of the affected gluteus maximum muscle in the DDH group was significantly larger while standing (P < 0.05), the RMS value of bilateral tensor fascia lata muscle was significantly larger while walking (P < 0.05), and the RMS value of the affected hamstring muscle medial head was significantly less in the DDH group compared with the control group (P < 0.05).An asymmetry and compensatory increase in the sEMG activity of the muscles around the hip joint when standing and walking was noted in children with unilateral DDH who underwent Pemberton osteotomy combined with a femoral osteotomy. The rehabilitation training of the muscles around the hip joint after unilateral DDH should be strengthened.Abbreviations: COM-COP = center of mass-center of pressure, DDH = developmental dysplasia of the hip, RMS = Root mean square, SEMG = surface electromyogram.
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