Minimal invasive combined pressurizing and locking bone fracture plate for trochanter comminuted fracture and femoral neck fracture

Abstract

The invention relates to a minimal invasive combined pressurizing and locking bone fracture plate for trochanter comminuted fracture and femoral neck fracture. The bone fracture plate comprises a trochanter rear-side fixing plate and a femoral proximal-end fixing plate, which are connected into an integrated structure for respectively covering the trochanter rear side and femoral proximal end in an annular shape, wherein first locking holes are respectively formed on two ends of the trochanter rear-side fixing plate, and first locking nails which penetrate the rear side of the trochanter crown head end and the rear side of the trochanter crown bottom end are locked in the two first locking holes respectively; three second locking holes, arranged in a regular triangle way, are formed on the femoral proximal-end fixing plate, a second locking nail for locking femoral trochanter, femoral neck and bulb penetrates at least one second locking hole; and the trochanter rear-side fixing plate and the femoral proximal-end fixing plate are connected into an integrated structure for covering the trochanter rear side and femoral proximal end in an annular way. By utilizing a ball lag screw or a locking lag screw, tensioning of the trochanter, the femoral neck and the bulb and positioning lock on the femoral diaphysis are realized, so the minimal invasive combined pressurizing and locking bone fracture plate for the pulverous trochanter fracture and femoral neck fracture has the advantages of simpleness in operation, small cut, good fixing effect, firm tensioning, no potential safety hazards in long term use, no deformation and good treatment effect and is beneficial to accurate diaplasis.

Description

technical field [0001] The invention relates to the field of orthopedic medical technology, in particular to a minimally invasive trochanter comminuted fracture and femoral neck fracture conjoined compression locking bone plate. Background technique [0002] With the aging of my country's population and the linear increase of fractures in middle-aged and elderly people, relevant data show that the average life expectancy in China has reached 73 years, and the activity level of middle-aged and elderly people is gradually decreasing, which also leads to the incidence of osteoporosis in middle-aged and elderly people. One of the reasons for the gradual increase in the incidence rate, it has been reported in the literature that more than 90% of patients with hip (trochanteric and femoral neck) fractures are over 65 years old, and 3 / 4 of them are women. The traditional treatment method is mainly based on the dynamic hip, that is, the DHS pressurized sleeve goose-head nail. Althoug...

AI Technical Summary

Problems solved by technology

The traditional treatment method is mainly based on the dynamic hip, that is, the DHS pressurized sleeve goose-head nail. Although its therapeutic effect has long been recognized, it is relatively complicated to install clinically and causes too much damage to the skeleton. The femoral neck and the ball head fixation part It is a tension nail, relatively poor in stability, and there are many product breakages in clinical applications; the tension nail only produces tension after installation, and it is difficult to achieve correct reduction during surgery, and the contact between the bone plate and the bone surface is too large. less, resulting in incorrect reset, unstable fixation, and poor therapeutic effect; the diameter of the head sleeve of the DHS sleeve goose-head nail is 13mm, and the length is 25-30mm. The goose-head nail sleeve basically blocks the medullary cavity between the trochanters, preventing the circulation of blood and bone marrow in the medullary cavity, which also affects the re-growth speed of the fracture, prolongs the healing time, and increases the pain of the patient

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