title: New approach to the treatment of adolescent hip dysplasia.
abstract: Hip dysplasia refers to the acetabular or femoral head shape and size and the relationships among their unusual growth; the most common types are acetabular hypogenesis and head mortar containing extraordinarily. The cause of disease is still not clear. There is a lack of unified classification standards and clinical diagnosis criteria. The main pathological change is the performance of the above of acetabular and the frontal defects. The acetabular bone is transferred to the hip center, which reduces femoral head acetabular tolerance and causes insufficient coverage. DDH (Developmental Dysplasia of Hip) may be associated with different degrees of hip subluxation, the acetabular bone becomes lighter and the hip joint capsule around the relaxation is the main cause of dislocation [1]. The patients with DDH and relationship have an involuted femoral articular surface, with abnormal relations. This can lead to articular cartilage degeneration, and cause osteoarthritis, which has a serious influence on patients' mental health and quality of life [2]. Therefore, the acetabular malformation must be corrected. This is performed by renewing the stability of articulation and decreasing the abnormal joint stress by the research and application. Nowadays, there is a simple operation based on the acetabular technique, the description of the three places: steel ilium osteotomies acetabular, joint capsule osteotomies around, Pemberton's description of the joint capsule around ilium osteotomies, etc. In particular, each has their respective advantages with regard to the operation method. However, complex, surgical trauma surgery methods also exist; nevertheless, pelvic change is heavy, the graft will not last as long, and may also be absorbed, among other shortcomings. In this report we use the lateral femoral screw with belt/vascular pedicle flap transfer of the ilium acetabular in the treatment of adolescent hip dysplasia, using a method that is different from other current operation methods. We use the false mortar joint capsule on the cut mortar in the upper part, which forms the false mortar bone cortex. The attachment connected the joint capsule together and turned down the mortar, forming concentric circles; arc grooves were cut high above the acetabular joint, which will turn down the vascular pedicle flap around the bone implant slots with screws, remove bone in the high bone disc and turn over the high board between the full bone. The mortar tolerates the increasing pressure and provides stability of the hip with a vascular pedicle flap and can provide good blood supply to the bone, avoiding the traditional acetabular osteotomy and the absorption of bone caused by a hip subluxation.
authors.affiliation: Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St. Dalian, Liaoning 116001, PR China. shibo85@yahoo.cn
authors.forename: Shibo
authors.initials: S
authors.lastname: Huang
authors.forename: Dewei
authors.initials: D
authors.lastname: Zhao
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D006617:Hip Dislocation / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008962:Models, Theoretical