Objective To explore the effective method and the feasibil ity of the accurate l imb length equal ization in patients undergoing total hip arthroplasty (THA). Methods From September 2006 to September 2008, 52 patients underwentunilateral THA, including 36 males and 16 females, with an average age of 61.5 years (range, 46-76 years). Among these cases, there were 22 cases of avascular necrosis of the femoral head, 12 cases of hip osteoarthritis, 11 cases of femoral neck fracture, 4 cases of congenital dislocation of hip, and 3 cases of acetabular dysplasia. Forty cases had leg length discrepancy, and the shortened length of the legs was in the range of 10 mm to 35 mm with an average of 20 mm. The mean Harris score before operation was 45 points (range, 36-58 points). Based on the cl inical measurement and radiographic examination, the surgical protocols were designed, the type of the hip prosthesis was chosen, and the neck length of the femoral prosthesis, and the position of osteotomy were estimated. By the proper wearing of the acetabula, the best rotation point was found out. The cut plane of the femoral neck was adjusted according to the results of the radiographic and other examinations. The neck length was readjusted after the insertion of the prosthesis so as to achieve intended leg-length equal ization. The discrepancy of the leg length was measured and evaluated after operation. Results The incision healed by first intention in all patients. One patient had ischiadic nerve palsy and achieved full restoration after 5 months of symptomatic management. Forty-four patients were followed up 16 months on average (7-32 months). The mean Harris score was 87.5 points (80-91 points), showing significant difference (P lt; 0.05) whencompared with that before operation. The l imb length equal ization were got in 35 patients (equal ization rate was 79.5%). Seven patients had the prolong leg (from 10 mm to 18 mm), 2 patients had the shortened legs (15 mm and 25 mm, respectively). Conclusion By measurement of leg-length and radiographic examination before and during operation, the problem of unequal leg - length can be solved during the THA.
ObjectiveTo investigate the etiology, clinical features and treatment of familial exudative vitreoretinopathy (FEVR) secondary glaucoma. MethodsA retrospective clinical study. From January 1, 2016 to January 1, 2022, 15 patients (17 eyes) were diagnosed with FEVR secondary glaucoma in Beijing Tongren Hospital, Capital Medical University were included in the study. All patients underwent systematic ophthalmological evaluation. According to the patient's age, visual acuity, intraocular pressure, anterior segment, vitreous body and retina condition, the choice of translimbal lensectomy combined with vitrectomy, goniectomy, cyclophotocoagulation, intravitreal injection of anti-vascular endothelial growth factor (VEGF) treatment were chosen. The follow-up time was 3 to 37 months. The clinical characteristics of the affected eye, and the changes of intraocular pressure, anterior chamber depth and complications after surgery were observed. ResultsAmong the 15 patients, there were 11 males with 13 eyes, and 4 females with 4 eyes. Age was 6.14±7.37 years old. FEVR stages 2B, 3B, 4A, 4B, 5A, and 5B were 1, 1, 5, 6, 3, and 1 eye, respectively. The intraocular pressure of the affected eye was 42.74±9.06 mm Hg (1 mm Hg=0.133 kPa). All eyes had shallow anterior chamber and angle closure, anterior or posterior iris adhesions, lens opacity, retinal detachment, iris neovascularization in 4 eyes, and vitreous hemorrhage in 2 eyes. Sixteen eyes were treated with translimbal lensectomy combined with vitrectomy and goniotomy, of which 8 eyes were treated with anti-VEGF treatment; 1 eye was treated with cyclophotocoagulation combined with anti-VEGF treatment. After operation, the intraocular pressure of 16 eyes returned to normal range, and the depth of anterior chamber of 16 eyes returned to normal, and no obvious complications occurred. ConclusionsThe main etiology of secondary glaucoma in FEVR is the structural and functional abnormalities of the anterior chamber and angle, which are found in the 2B and above stages of FEVR. The lensectomy and vitrectomy via limbal approach can effectively control the intraocular pressure and restore the anterior chamber, with no serious complications.