Відмінності між версіями «Rtrochanteric fractures have already been classified»
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| − | + | When this distance is 25 mm and the possibility of achievement and [https://www.medchemexpress.com/Rocaglamide.html Rocaglamide A] healing is great. If the tip-apex distance is >25 mm and the rate of failure is elevated.Geriatric Orthopaedic Surgery Rehabilitation six(two)Figure 4. The AO/OTA classification of the extra-capsular proximal femur fractures (intertrochanteric-subtrochanteric region). In line with this classification program, the femur is labeled bone 3, and also the proximal femur segment is labeled 1. The ``A'' forms are extracapsular fractures. Kinds A1.1 to A2.1 are usually deemed to be steady patterns. Types A2.2 to 3.3 are often viewed as unstable fractures.Unstable fractures are characterized by comminution, a reverse obliquity fracture line, or extension in to the shaft in the femur. In these circumstances, the lateral buttress is just not intact and can not provide an end point to sliding, so a sliding hip screw includes a greater price of failure in these fracture patterns.88 The unstable fracture is ideal treated with an intramedullary nail because it delivers the buttress for the proximal fragment.27 A fixed angle device, which include an angled blade plate, could also be thought of. There are actually 3 essential technical points regarding the insertion of an intramedullary nail. First, the fracture has to be decreased before nail insertion and open reduction performed if essential. Second, the proximal element of the nail should be medialized during insertion to stop more iatrogenic fracture. Third, the nail should be held nevertheless in the femoral canalduring hip screw insertion in order that the screw does not migrate proximally, a step that is vital in assuring assure a low tipapex distance. A short or perhaps a lengthy intramedullary nail could be utilised. While the long nail could shield far more of the femoral shaft, the bone is usually at danger of fracture distally about the end from the nail above the knee. The nail may possibly also lead to an intraoperative fracture in the anterior cortex from the distal femur because of a mismatch between the anterior bow of the nail and that from the femur.Rtrochanteric fractures have already been classified by numerous systems,85 but they are far more virtually termed steady or unstable (Figure four). Stable fractures usually have two or three components with intact medial and lateral buttresses and must be treated with sliding hip screw fixation. The lateral buttress enables to get a firm end point to the sliding from the screw.86 The sliding hip screw performs by getting a firmly anchored screw in the femoral head. The screw slides within the barrel in the side plate, permitting for compression in the neck of your femur against the greater trochanter. Over time and with weight bearing, the screw may well slide, additional compressing the fracture. The important issue within the good results with the hip screw is definitely the placement on the screw inside the femoral head. The screw ought to be as deep as possible and centered with all the head. The importance from the position has been quantified by the tip-apex distance, that is certainly, the distance between the tip on the screw and also the apex from the femoral head around the posterior nterior and lateral views. When this distance is 25 mm as well as the likelihood of good results and healing is great. | |
Версія за 20:46, 28 листопада 2017
When this distance is 25 mm and the possibility of achievement and Rocaglamide A healing is great. If the tip-apex distance is >25 mm and the rate of failure is elevated.Geriatric Orthopaedic Surgery Rehabilitation six(two)Figure 4. The AO/OTA classification of the extra-capsular proximal femur fractures (intertrochanteric-subtrochanteric region). In line with this classification program, the femur is labeled bone 3, and also the proximal femur segment is labeled 1. The ``A forms are extracapsular fractures. Kinds A1.1 to A2.1 are usually deemed to be steady patterns. Types A2.2 to 3.3 are often viewed as unstable fractures.Unstable fractures are characterized by comminution, a reverse obliquity fracture line, or extension in to the shaft in the femur. In these circumstances, the lateral buttress is just not intact and can not provide an end point to sliding, so a sliding hip screw includes a greater price of failure in these fracture patterns.88 The unstable fracture is ideal treated with an intramedullary nail because it delivers the buttress for the proximal fragment.27 A fixed angle device, which include an angled blade plate, could also be thought of. There are actually 3 essential technical points regarding the insertion of an intramedullary nail. First, the fracture has to be decreased before nail insertion and open reduction performed if essential. Second, the proximal element of the nail should be medialized during insertion to stop more iatrogenic fracture. Third, the nail should be held nevertheless in the femoral canalduring hip screw insertion in order that the screw does not migrate proximally, a step that is vital in assuring assure a low tipapex distance. A short or perhaps a lengthy intramedullary nail could be utilised. While the long nail could shield far more of the femoral shaft, the bone is usually at danger of fracture distally about the end from the nail above the knee. The nail may possibly also lead to an intraoperative fracture in the anterior cortex from the distal femur because of a mismatch between the anterior bow of the nail and that from the femur.Rtrochanteric fractures have already been classified by numerous systems,85 but they are far more virtually termed steady or unstable (Figure four). Stable fractures usually have two or three components with intact medial and lateral buttresses and must be treated with sliding hip screw fixation. The lateral buttress enables to get a firm end point to the sliding from the screw.86 The sliding hip screw performs by getting a firmly anchored screw in the femoral head. The screw slides within the barrel in the side plate, permitting for compression in the neck of your femur against the greater trochanter. Over time and with weight bearing, the screw may well slide, additional compressing the fracture. The important issue within the good results with the hip screw is definitely the placement on the screw inside the femoral head. The screw ought to be as deep as possible and centered with all the head. The importance from the position has been quantified by the tip-apex distance, that is certainly, the distance between the tip on the screw and also the apex from the femoral head around the posterior nterior and lateral views. When this distance is 25 mm as well as the likelihood of good results and healing is great.
