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A kind of internal fixation for treating femoral intertrochanteric fracture combined with lateral wall fracture

A technology for the trochanter and lateral wall of the femur, applied in the field of medical devices, to achieve the effects of low failure rate, reliable reconstruction and fixation, and reduced incidence of complications

Active Publication Date: 2022-04-26
ANHUI PROVINCIAL HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention solves the above problems with an internal fixation for the treatment of femoral intertrochanteric fracture combined with lateral wall fracture

Method used

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  • A kind of internal fixation for treating femoral intertrochanteric fracture combined with lateral wall fracture

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Experimental program
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Effect test

Embodiment 1

[0031] When used for treatment, the distal end of the intramedullary nail rod 1 is implanted into the bone marrow from the medial pyriform sinus of the greater trochanter of the femur.

[0032] press the greater trochanter and the lateral wall under the locking plate 2 of the lateral wall, and fix it with screws passing through the holes 23 thereon;

[0033] Then the helical drill bit 31 of the lag screw 3 passes through the opening groove 22 on the outer wall locking plate 2 and the screw hole 12 on the intramedullary nail rod 1 in sequence, Drill into the femoral head;

[0034] Finally, the interlocking nail 4 is passed through the interlocking nail hole 13, so that the rod of the intramedullary nail 1 is further stabilized;

[0035] In this way, the reconstruction and fixation of patients with intertrochanteric fracture combined with lateral wall fracture can be realized.

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Abstract

The invention discloses an internal fixation for treating femoral intertrochanteric fracture combined with lateral wall fracture, comprising intramedullary nail rod, lag screw, interlocking nail, screw and lateral wall locking plate; the intramedullary nail rod is the distal end A long shaft with a thick proximal end and a certain degree of curvature. An oblique screw hole is provided at the proximal end of the intramedullary nail rod; The top of the proximal end of the inner nail rod can be rotated around the top of the proximal end of the intramedullary nail rod; the other end is provided with an open slot; the main body of the locking plate on the outer wall is also provided with a number of holes for implantation of screws; One end of the lag screw is a helical drill, the middle diameter is smaller than the diameter of the helical drill, and the diameter of the tail end is larger than the diameter of the helical drill; when in use, the helical drill of the lag screw passes through the outer wall in sequence Lock the opening groove on the steel plate and the screw hole on the intramedullary nail rod.

Description

technical field [0001] The invention belongs to the field of medical equipment. The invention relates to an orthopedic internal fixation device, in particular to an internal fixation for treating femur intertrochanteric fracture combined with lateral wall fracture. Background technique [0002] The literature pointed out that the incidence of femoral intertrochanteric fracture combined with lateral wall fracture was as high as 88.4%, including trauma caused at that time, some elderly patients with severe osteoporosis, and iatrogenic factors caused by intraoperative operation; when combined with lateral wall fracture, internal The failure rate after fixation reached 11.1%, significantly higher than the 1.66% failure rate of internal fixation without lateral wall fracture. [0003] For the treatment of femoral intertrochanteric fractures combined with greater trochanter and lateral wall fractures, intramedullary nails and auxiliary steel plates or steel wire tension bands are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/76
CPCA61B17/744A61B17/746
Inventor 谢凯杨家赵方诗元朱万博刘雷
Owner ANHUI PROVINCIAL HOSPITAL
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