External fixator applied to transverse fibula movement

Abstract

The invention provides an external fixator applied to transverse fibula movement. The external fixator comprises a ring-shaped external fixator frame body (1), a proximal tibia extension and angle adjustment fixing unit (2), a distal tibia extension and angle adjustment fixing unit (3) and an olive needle fixing rod (4), wherein olive needles can be fixed in threaded holes formed in the middle part of the olive needle fixing rod (4), and the top ends of a proximal fibula olive needle (4-1) and a distal fibula olive needle (4-2) are respectively fixed in the threaded holes by an olive needle fixator (4-3). The external fixator applied to transverse fibula movement has the advantages that the current lack of a clinically effective and mature external fixing frame system for transverse fibula movement is made up; the external fixator is simple in structure, simple and convenient in operation as well as firm and reliable in structure; the external fixator is capable of accurately moving fibulas into a tibia defect area transversely, thus being beneficial to solving the clinical problems such as tibial bone defects and crus soft tissue defects at the same time; therefore, the external fixator is especially suitable for patients with tibial massive bone defects and poor soft tissue coverage of residual healthy tibial tissue muscle.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an external fixator applied to the lateral movement of fibula. Background technique [0002] The treatment methods for large tibial bone defects mainly include vascularized autologous bone grafting (such as ribs, ilium, and fibula), tibialization of the ipsilateral fibula, allogeneic bone grafting, and bone transfer. [0003] Among them, the autologous bone graft method with vascular pedicles has the following defects: when the tibial defect is large, it cannot be used due to the limited amount of bone; at the same time, it will cause secondary damage to the normal limbs or parts of the donor area that provide bone tissue, bringing serious harm to the patient. Come more pain. [0004] Ipsilateral fibular tibialization should not be used when the fibula is damaged or the local soft tissue condition is poor. The failure rate is high and there are many complicat...

AI Technical Summary

Problems solved by technology

[0003] Among them, the autologous bone grafting method with vascular pedicles has the following defects: when the tibial defect is large, it cannot be used due to the limited amount of bone; at the same time, it causes secondary damage to the normal limbs or parts of the donor area that provide bone tissue, which brings great harm to the patient. come more pain

[0009] Based on the above advantages, at present, the ipsilateral fibula transverse bone transfer technology has attracted more and more attention from clinicians. However, there is no effective, mature, and easy-to-operate external fixator system in clinical practice for the ipsilateral fibula transverse bone transfer.

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