[Efficacy and safety of vertebrae pedicle subtraction osteotomy by posterior trans apical for correction of severe and rigid idiopathic scoIiosis].

Objective: To evaluate the efficacy and safety of pedicle subtraction osteotomy for correction of severe rigid idiopathic scoliosis. Methods: From January 2003 to December 2014, eighteen patients with severe rigid idiopathic scoliosis were treated by posterior wedge osteotomy in department of spinal surgery, the First Affiliated Hospital of Xinjiang Medical University. There were 5 males and 13 females, and the average age at was (16.9±9.1)years, and the average follow-up was 47.6 months. The coronal and sagittal Cobb's angles, sagittal trunk shifts, apical vertebral translation, height change and fusion segments were measured on standing AP and lateral radiographs before, after surgery and the final follow-up. Results: The Cobb's angle in the coronal plane was corrected from (94.3±13.3)°to (31.6±14.8)°, representing 64.8% correction rate. The Cobb's angle in the sagittal plane was corrected from (62.5±17.8)°to (27.1±11.7)°, representing 82.6% correction rate. Coronal trunk shift was obviously improved from -29.8 mm to -3.5 mm. the average fusion segments was 13.7±1.8 ranging from 11 to 17 segments. Perioperative complications consisted of pleura injury in 4 cases, cerebrospinal fluid leakage in 2 cases transient neurological damage in 2 cases and delayed infection in 1 case. Conclusion: Pedicle Subtraction Osteotomy correction by the single posterior approach is a reliable and safe surgical technique for correction of severe rigid idiopathic scoliosis.

[Diagnosis and treatment of Tuberculous primary psoas abscess].

Objective: To retrospective analysis the clinical characteristics of diagnosis and treatment the disease of tuberculous psoas abscess (TPA). Method: The medical records of 13 consecutive patients presenting to our hospital with TPA were reviewed from November 2002 to December 2015.Demographic data, presenting features, predisposing factors and the investigations performed were recorded and the outcomes were analysed. Results: The thirteen patients were included, 11 cases all had lower backache, 6 cases had Lower abdomen or groin area pain, 2 cases had fever, eleven cases were treated with Open drainage, one with Ultrasound guided drainage, and the last case used antibiotics alone, median hospital stay of 35 days, follow-up showed no recurrence or death in patients. Conclusion: The incidence of TPA is probably underreported.The vague presentation leads to delays in diagnosis and increases morbidity and a high index of suspicion is the key to early diagnosis.Open drainage has Lower recurrence and death rates, and used widely, is the most reliable method for the treatment of primary tuberculous psoas abscess.