Innominate osteotomy

a technology of osteotomy and innominate bone, which is applied in the field of surgical treatment of hip diseases, can solve the problems of disrupting affecting the normal development of the hip joint,

Inactive Publication Date: 2002-07-18
YOON TAEK RIM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in an excess of calcified cartilage in the primary trabecular bone.
If detected and treated after 8 years of age, the prognosis tends to be poor.
Developmental hip dysplasia involves displacement of the femoral head from the acetab

Method used

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Examples

Experimental program
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Embodiment Construction

[0035] A patient is placed on an operating table in a semilateral decubitus position or supine position. The patient's lower limb is prepared and draped to allow free motion of the hip during operation. Prior to the osteotomy, an adductor tenotomy may be performed if the tendon is tight. Generally, an incision is made starting from the middle of the iliac crest, extending anteriorly along the iliac crest, and finishing around midpoint of the inguinal ligament. The subcutaneous tissue is divided in line with the skin incision. The fascia lata is incised along the medial border of the tensor fascia lata. The cartilaginous iliac apophysis under the incised skin is split in the middle down to the bone. The periosteum is elevated in both sides of the ilium to expose the sciatic notch. The iliopsoas tenotomy is performed.

[0036] A transverse cut is made through the posterior section of the supraacetabular ilium using a Gigli saw. An oblique cut is then made using a reciprocal saw. The open...

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PUM

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Abstract

This invention provides a surgical method to treat hip diseases, including Legg-Calve-Perthes disease or developmental hip dysplasia. This method includes several surgical techniques: a transverse osteotomy of the posterior portion of supraacetabular portion, an oblique and inclined osteotomy of the anterior portion of the supraacetabulum, detachment of a bone block from iliac crest, anterolateral displacement of the distal fragment, and insertion of the bone block into the distracted space of the osteotomy site.

Description

[0001] A. Field of the Invention[0002] The invention relates to a surgical method of treating hip diseases. More specifically, the invention provides an innominate osteomy for treating diseases such as Legg-Calve-Perthes Disease, developmental hip dysplasia, or hip dislocation.[0003] B. Description of the Prior Art[0004] Legg-Calve-Perthes disease is a self-limiting hip disorder caused by a varying degree of ischemia and subsequent necrosis of the femoral head. Signs of the disorder include avascular necrosis of the proximal femoral epiphysis nucleus, abnormal growth of the physis, and eventual remodeling of regenerated bone. Typically, avascular necrosis of the femoral epiphysis results in delayed occific nucleus. Articular cartilage is nourished by synovial fluid and continues to grow. Consequently, cartilage columns become distorted with some loss of cellular components and do not undergo normal ossification. This results in an excess of calcified cartilage in the primary trabecu...

Claims

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Application Information

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IPC IPC(8): A61B17/56A61B17/58
CPCA61B17/58A61B2017/564
Inventor YOON, TAEK-RIM
Owner YOON TAEK RIM
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