SU1461430A1 - Method of endoprosthesing proximate section of the femur - Google Patents

Abstract

This invention relates to orthopedics. The purpose of the invention is the prevention of rotational displacement of the endoprosthesis. Osteotomy of the femur is performed at the base of the femoral neck. In the cancellous spongy region and the bone medullary canal of the femur, a bed is formed for the endoprosthesis stem. In the cortical layer, a rectangular groove is selected over the small hip spit. Endoprosthesis is implanted into the formed bed. A nail is guided through a sloping canal in the trochanteric region of the thigh and fixed in the neck of the endoprosthesis. (L

Description

The invention relates to the field of medicine, namely to orthopedics.

The aim of the invention is to prevent rotational displacement of the endoprosthesis.

The method is carried out as follows.

In the position of the patient on the healthy side, an arcuate incision of the skin from the iliac crest along the posterior edge of the greater trochanter and further along the outer surface of the thigh exposes the hip joint. Arthrotomy was performed. Remove the femoral head from the acetabulum and remove, the femoral neck stump is resected at the base. In the spongy substance. ti and bone-marrow channel thigh for-. reconcile bed for the core of the endoprosthesis. Based on the neck in the cortical layer of the Adams arc, a rectangular-shaped groove is selected, corresponding to samples in the cervical endoprosthesis, a height not exceeding one-third of Adams height and not more than one-third the diameter of the endoprosthesis neck. The endoprosthesis is implanted into the formed bed so that the samples in the cervical region are plunged into the groove on the base of the cheek. In the trochanteric region of the thigh, an inclined channel is formed under the metal nail through an inclined hole at the base of the endoprosthesis neck from the inside outwards into which the stem is inserted from the inside and inside, and the length of the channel is calculated in advance using X-rays.

Example. Sick G., 78 years old, was operated on for a closed, unsteady fracture of the neck of the right femur, a condition after metal osteosynthesis of femoral fragments

ABOUT)

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bone screw, in the position on the left side layered incision reveals the right hip joint. Produced arthrotomy. The head of the femur is dislocated from the acetabulum and removed. The resection of the cervical stump was made. A bed was formed under the core of the endoprosthesis in the trochanteric region and the bone-brain canal. In the cortical layer of the Adams arc, a fixing rectangular groove with a size of 6 x 8 mm is made. After insertion of the endoprosthesis, the sample size of 6x8x 10 mm at the bottom of its neck is immersed in the prepared groove. The inclined canal in the spit area is formed with the help of an inside-out wig through the hole in the base of the endoprosthesis neck. A metal nail is inserted into the inclined channel outside the inside and firmly fixed in the neck of the protege after the preliminary measurement by radiographs. The endoprosthesis head is set in the acetabulum, the capsule and soft tissues surrounding the joint are sutured. Additional plaster immobilization of the operated limb after surgery was not applied. The patient was put on crutches two weeks after the operation. Walking with a metered load on the operated limb began four weeks later. Clinically and radiologically, two years after surgery, the function and support of the limb in full. There is no pain in the hip joint. The patient moves at home without additional support, on the street - with a wand. Fully restored working capacity within age. On radiographs, the peri-physeal angle is 130. There are no signs of osteolysis around the endoprosthesis stem, its fixation is strong, these dislocations, the endoprosthesis stem is absent.

Claims (1)

Thus, the proposed method allows to provide additional fixation of the endoprosthesis, to prevent its dislocation by preventing rotational movements. Invention Formula five 0 The method of endoprosthesis replacement of the proximal femur by osteotomy of the femur at the base of the cervix, formation of the bed in the trochanteric region and the bone marrow channel, installation of the endoprosthesis and its fixation, characterized in that the groove and additionally fix the endoprosthesis from the side of the greater trochanter.