Humans ; Osteotomy ; adverse effects ; methods ; Scoliosis ; surgery

Humans ; Osteotomy ; adverse effects ; methods ; Scoliosis ; surgery

How to remove the well fixed cement or cementless prosthesis and get a completely distal cement removal in the rTHR are critical to the outcome of revision. Because of higher rate of union, excellent intraoperative exposure, and adjustment of abductor tension, ETO has been widely applied to rTHR and complicated primary THR by foreign scholars. Furthermore, this technology has wide indications, very few contraindications, high cure rates,and low complications rate. ETO turns out to be a safe and effective revision technology. In the article, the indication, contraindication, complications and advantages of this technique were reviewed.
Arthroplasty, Replacement, Hip ; methods ; Humans ; Osteotomy ; adverse effects ; methods

OBJECTIVETo study the influences on mandibular development after removing the outer cortex of mandibular body in childhood minitype pig.

METHODSSix childhood minitype pigs were selected as the experimental animals. The outer cortex of mandibular body measured as 3.0 cm x 1.5 cm was removed in one side, and the other side remained intact as the control. The changes of mandibular modality and occlusion relationship as well as the histological and biomechanical changes were studied 24 weeks after operation.

RESULTSThere was no obvious difference compared with the control side in the height of the mandibular ramus and the length of the mandibular body, However, lateral deviation occlusion was found in some animals. The body thickness was thinner than that of the control side, there were no obvious biomechanical and histological differences between the two sides.

CONCLUSIONSThere was less influence on the growth of mandibular bone after removing one side of the outer cortex of the mandibular body in childhood minitype pig. But further study should be done for the cause of the lateral deviation of the mandible in part of the animals.

Animals ; Female ; Male ; Mandible ; growth & development ; surgery ; Mandibular Condyle ; surgery ; Osteotomy ; adverse effects ; Swine ; Swine, Miniature

OBJECTIVETo compare the efficacy of two surgical techniques for controllong nasal width after Le Fort I osteotomy.

METHODSFifty-five patients who received the Le Fort I osteotomy have been included in this study. They were randomly divided into 2 groups. The experimental group received extraoral ABS, and the control group received traditional intraoral ABS. 3D photos of the patient's face were taken before operation and at postoperative 3 months. Alar width was measured on the 3D photos. Data was reported as means and standard deviations, and statistic analysis was done by using student t test.

RESULTSCompared with presurgical data, G. lat-G. lat increased by (2.66 +/- 1.47) mm, Al-Al increased by (2.20 +/- 1.22) mm and Sbal-Sbal increased by (1.30 +/- 1.33) mm in experimental group. G. lat-G. lat increased by (1.38 +/- 1.29) mm, Al-Al increased by (1.06 +/- 0.95) mm and Sbal-Sbal increased by (0.36 +/- 1.33) mm in the control group. There was significant difference between two groups.

CONCLUSIONSThe surgical technique of ABS is the most important factor for determining the postoperative alar width. Both techniques have better effect on the Sbal-Sbal width control than the G. lat-G. lat and Al-Al width control. Traditional intraoral ABS can more effectively control the alar width. Both techniques cannot completely control the alar base widening after Le Fort I osteotomy.

Face ; Humans ; Nose ; anatomy & histology ; Nose Deformities, Acquired ; surgery ; Osteotomy, Le Fort ; adverse effects ; Photography

Humans ; Kyphosis ; surgery ; Lumbar Vertebrae ; surgery ; Osteotomy ; adverse effects ; methods ; Thoracic Vertebrae ; surgery

Humans ; Intraoperative Complications ; Osteotomy ; adverse effects ; methods ; Postoperative Complications ; Spine ; surgery

BACKGROUND: Standard treatments may provide adequate containment in mild to moderate Legg-Calve-Perthes disease (LCPD), but they can be problematic in more severe cases. The purpose of this study was to report the results of combined shelf acetabuloplasty with femoral varus osteotomy in severe LCPD. METHODS: We reviewed 12 patients who had undergone combined shelf acetabuloplasty with femoral varus osteotomy. The indications for this type of operation were: (1) above 8 years of age at clinical onset; (2) massive femoral epiphysis involvement (Catterall group 4, lateral pillar C); (3) femoral head lateral subluxation on the anteroposterior radiograph; and (4) impending hinged abduction on preoperative magnetic resonance imaging or arthrography. The mean age was 9.3 years (range, 8 to 10.8 years). The patients were clinically evaluated with Iowa hip score and leg length discrepancy at the final follow-up. Radiographic outcome was assessed using the Stulberg classification to evaluate femoral head sphericity. The presence of osteoarthritis was evaluated by the Tonnis classification. Correlation analysis was conducted to analyze the preoperative factors that were strongly associated with patients' outcomes. RESULTS: The mean follow-up period was 10.1 years (range, 7.1 to 13.2 years). Functional grade was excellent in all patients at last follow-up (mean, 92; range, 82 to 99). The mean leg length discrepancy after skeletal maturity was 0.9 cm (range, 0 to 1.7 cm). There were no significant complications or need for additional surgery. Radiographically, 92% of patients reached satisfactory outcomes: Stulberg grade I, 0 cases; Stulberg grade II, 4 cases (34%); Stulberg III, 7 cases (58%), Stulberg IV, 1 case (8%); and Stulberg V, 0 cases. There was no osteoarthritis by Tonnis classification. CONCLUSIONS: The surgical outcomes for combined shelf acetabuloplasty with femoral varus osteotomy in severe LCPD patients over 8 years old are comparable with other advanced surgical methods. In the cases of severe disease that match our inclusion criteria, our containment method could be another treatment option.
Acetabuloplasty/adverse effects/*methods ; Child ; Female ; Humans ; Leg Length Inequality ; Legg-Calve-Perthes Disease/radiography/*surgery ; Male ; Osteotomy/adverse effects/*methods ; Pain ; Postoperative Complications ; Retrospective Studies ; Treatment Outcome

OBJECTIVEThe purpose of this study was to determine the incidence of temporary and permanent sensory disturbance of the inferior alveolar nerve (IAN) after bilateral sagittal split osteotomy (BSSO) of the mandible.

METHODS14 patients were selected for this study. Before BSSO and at 1 week, 1, 3, 6 and 12 months after BSSO, the sensibility of bilateral inferior alveolar nerves were examined using sharp-blunt testing, 2-point discrimination, electronic pain response test (ZGK-1 electrometer).

RESULTSWith conventional sharp-blunt and 2-point discrimination test, electronic pain response test, the incidence of temporary impairment of IAN after BSSO was 78% (22/28). Obvious sensory recovery of IAN was found 6 to 12 months postoperatively. Permanent sensory disturbance of unilateral inferior alveolar nerve occurred in 2 patients.

CONCLUSIONSSensory recovery of the inferior alveolar nerve after bilateral sagittal split osteotomy of the mandible would take 6 to 12 months. Serious injury of the IAN would cause permanent neurosensory deficits.

Adolescent ; Adult ; Female ; Humans ; Male ; Mandible ; surgery ; Mandibular Nerve ; physiopathology ; Oral Surgical Procedures ; adverse effects ; Osteotomy ; adverse effects ; methods ; Sensory Thresholds ; Trigeminal Nerve Injuries

OBJECTIVETo explore the therapeutic effects of posterior osteotomy and long-segment internal fixation in the treatment of senile thoracolumbar kyphotic deformity and provide the reference for operative treatment.

METHODSFrom April 2007 to April 2010, 19 older patients with thoracolumbar kyphotic deformity were respectively analyzed. There were 12 males and 7 females with an average age of 62 years (ranged, 58 to 74 years). Among patients, 11 cases were old fracture, 3 cases were ankylosing spondylitis, and 5 cases were old spinal tuberculosis. According to preoperative Frankel classification, 12 cases were grade E, 4 cases were grade D, 2 cases were C and 1 case was grade B. All patients were treated by posterior osteotomy and long-segment internal fixation and followed up above 1 year. VAS score preoperative, 2 weeks and 1 year after operation, Cobb's angle,n erve function and complication were observed.

RESULTSVAS score preoperative, 2 weeks and 1 year after operation separately was (7.0 +/- 1.2),(1.1 +/= .7) and (1.3 +/- .8); while Cobb's angle separately was (44.1 +/- .9), (10.9 +/- .1) and (11.5 +/- .8); there was significant difference in VAS score and Cobb's angle between preoperative and 2 weeks after operation (P < 0.05) w hile no significant difference between 2 weeks and 1 year after operation (P > 0.05). Eighteen cases met the standard of osseous fusion, 1 case occurred nonunion, but not looseness 1 year after operation. Nerve function: 3 cases changed grade E from 4 cases with grade D, 2 cases with grade C changed to grade D, 1 case with grade B changed to grade

CONCLUSIONPosterior osteotomy and long-segment internal fixation for the treatment of senile thoracolumbar kyphotic deformity can receive a good short-time effects.

Aged ; Female ; Fracture Fixation, Internal ; adverse effects ; methods ; Humans ; Kyphosis ; surgery ; Lumbar Vertebrae ; surgery ; Male ; Middle Aged ; Osteotomy ; adverse effects ; methods ; Retrospective Studies ; Thoracic Vertebrae ; surgery