Interlocking screw for fixation of ankle fractures

Abstract

Ankle fractures are very common and causes a lot of disability specially in diabetic and elderly patints. So we innovate a new method for fixation of such fractures : 1- fast and easy. 2-smmall wounds (per cutaneous ). 3-decreased complications as much as we can. 4-very stable fixation. 5-protection of bones, soft tissues and circulation with high safety margin. So we innovted [interlocking medullary ankle screws system] for fixation of such fractures.... which is new easy fast with minimal or no complications.

Description

Interlocking screw for fixation of ankle fracturesTechnical field[1] Orthopedics, fractures and injuriesBackground art:[2] interlocking screw for fixation of ankle fractures.Disclosure Of The invention :Invention summary[3] A medullary screw for the fibula[4] with a hole to make another clamping screw smaller than it in size.[5] Insert the content here, as there is another interlocking screw to fix the ankle,The technical problem in the subject matter of the request[6] Fixing ankle fractures in the presence of ligament laceration is done with plates and screws to return the ankle to its basic anatomical position, but these operations have major problems, especially if the patient has diabetes, which causes instability of the fracture, susceptibility to non-union and purulent infections.[7] Therefore, there must be an invention that solves this problem: the fixation is strong, and the surgical intervention is limited and quick in its work.[8] This invention was by making a medullary interlocking screw with limited intervention, as well as to fix the internal protrusion, as well as the posterior protrusion, if it is broken, and you also need to fix it. technical solution[9] here is a minimally invasive interlocking medullary screw with strong hold.Features of the invention

[0010] It is easy to install and fast in its work, and the wound is small (limited intervention), which reduces the recovery period and reduces the expected complications, God willing.Ankle injuries are among the most important injuries that occur among athletes and the most common, especially among football, basketball, handball players and other activities that are practiced on unpaved ground. The stability of the ankle joint is also necessary for the joint to perform its work to the fullest. The ankle joint consists of the meeting of the bones of the tibia with the trinity and the tibia with the fibula with the covering of the joint and the ligaments that fix this joint from the medial and lateral sides. Although the peripheral fibular-tibial union injuries may not lead to imbalance in the ankle joint, the presence of a rupture of the deltoid ligament severely threatens the stability of the ankle joint, and ankle injuries mayIt affects the terminal fibular-tibial union and may be accompanied by injuries to the soft tissues or bony tissues that maintain the stability of the ankle joint. The diagnosis of ankle injuries may be made - in the absence of an ankle fracture.Clinical examination, including the presence of pain in the front of the ankle when pressing on it, or the presence of positive signs when performing the squeezing or turning test, and also with regular x-rays. Recently, CT scans and MRI scans are used to detect this injury, but federal ligament injuries may not appear with x-rays, and this is the role and importance of Clinical detection. The aim of treating this injury is to maintain the geometry between the tibia and fibula bones until healing occurs for the ligaments of the peripheral fibular-tibial union, whether before the operation in the absence of a fracture with the medial and lateral protrusion or during the operation after fixing this fracture, and this may be done without surgical intervention By conservative treatment in case of good fixation of fractures or in case of rupture of the ligaments without separation or instability of the ankle joint. Fixation of the ankle joint in the event of a rupture of the federal ligament is necessary using screws. As for the type of screws or the time for their lifting, it is still a matter of disagreement. Despite the difficulty of diagnosing thistype of injury, the lack of diagnosis and treatment always leads to bad results, such as the presence of chronic swelling in the ankle or functional or anatomical imbalance of the joint, which impedes the patient's movement. The purpose of the research: Diagnosis of rupture of the union ligament, methods of injury, different methods of diagnosis and methods of treatment, and the problems resulting from its misdiagnosis.In the case of ankle fractures associated with diabetes (diabetic ankle, diabetic foot, or Charcot's ankle), the fracture problem is exacerbated for the following reasons:• Osteoporosis.• Poor blood circulation.• Weak nerves and a sense of the foot.• limb paresis as a result of the effect of diabetes.• Imbalance.• Difficulty healing wounds.• Difficulty in fusion of the fracture.Weak immunity and weak body in general.Therefore, in the event that these fractures are surgically fixed, the following must be done:Fracture stabilization strength.• Limited intervention with the smallest possible wound.• Plaster work under the knee.• Added time: not loading the foot - lifting the stitches - lifting the gypsum - treatment with bone tonics such as calcium and vitamin D and eating foods that contain them.The different methods of fixing fractures are:Splints.• wires.• Slides and screws.• External fixators.Speial nails, especially the syndesic ones.• Splints: used if the fracture is in a good and stable position, and the patient's age is small and the expected complications are few.• Wire (K-WIRE): used in cases of oblique fractures that require simple fixation because they are fairly stable with the young age of the patient.• Screws through a small skin hole with limited intervention (PECUTANEUS SCREWS): used in sophisticated cases.Ankle interlocking screws consists of• Fibular intramedullary screws with holes for locking screws• Lower tibia screws with holes for plafond and lower shaft fractures• Locking screws : for Syndesmosis ; plafond and maleolarfrcturesBrief description Of the Drawing :Fig. 1 : Lower Fibular Intramedullary Interlocking ScrewFig.2 : Lower Tibial Interlocking Intramedullary ScrewFig.3 : Lockng screw

Claims

Claims1- Anatomical ( with variable diameters) Intamedullary Interlocking Screw for lower Fibular Fractures ( The first one allover the world ).2-Intamedullary Interlocking Screw for lower Tibial Fractures ( The first one allover the world ).3 -This screw interlock perpediculary withlocking screws to fix lower fibular and tibial fractures well.