Відмінності між версіями «Rtrochanteric fractures happen to be classified»
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| − | + | Sorts A2.2 to 3.3 are often deemed unstable fractures.Unstable fractures are characterized by comminution, a reverse [http://99wallstreet.com/ Is group of medicines, AHA recommends {to start|to] obliquity fracture line, or extension into the shaft in the femur. Third, the nail should be held nevertheless inside the femoral canalduring hip screw insertion so that the screw doesn't migrate proximally, a step that is critical in assuring assure a low tipapex distance. A short or perhaps a lengthy intramedullary nail can be used. Although the long nail could shield extra from the femoral shaft, the bone might be at risk of fracture distally around the end of the nail above the knee. The nail may well also bring about an intraoperative fracture in the anterior cortex with the distal femur for the reason that of a mismatch amongst the anterior bow on the nail and that on the femur. Care must be taken in the course of nail insertion to avoid fracture.Rtrochanteric fractures have already been classified by various systems,85 but they are extra practically termed stable or unstable (Figure four). Steady fractures ordinarily have two or three parts with intact medial and lateral buttresses and really should be treated with sliding hip screw fixation. The lateral buttress makes it possible for for any firm end point to the sliding on the screw.86 The sliding hip screw performs by getting a firmly anchored screw in the femoral head. The screw slides in the barrel in the side plate, enabling for compression of the neck in the femur against the greater trochanter. Over time and with weight bearing, the screw may perhaps slide, additional compressing the fracture. The important aspect inside the achievement in the hip screw would be the placement in the screw within the femoral head. The screw ought to be as deep as possible and centered with the head. The importance with the position has been quantified by the tip-apex distance, that may be, the distance between the tip on the screw plus the apex with the femoral head on the posterior nterior and lateral views. When this distance is 25 mm and also the opportunity of success and healing is exceptional. In the event the tip-apex distance is >25 mm along with the rate of failure is increased.Geriatric Orthopaedic Surgery Rehabilitation 6(two)Figure 4. The AO/OTA classification of the extra-capsular proximal femur fractures (intertrochanteric-subtrochanteric region). Based on this classification system, the femur is labeled bone 3, along with the proximal femur segment is labeled 1. The ``A'' sorts are extracapsular fractures. Kinds A1.1 to A2.1 are typically viewed as to be steady patterns. Kinds A2.two to 3.three are usually regarded as unstable fractures.Unstable fractures are characterized by comminution, a reverse obliquity fracture line, or extension into the shaft in the femur. In these cases, the lateral buttress is just not intact and will not supply an finish point to sliding, so a sliding hip screw features a larger rate of failure in these fracture patterns.88 The unstable fracture is greatest treated with an intramedullary nail since it gives the buttress for the proximal fragment.27 A fixed angle device, for instance an angled blade plate, might also be considered. You can find three essential technical points concerning the insertion of an intramedullary nail. | |
Поточна версія на 17:10, 13 листопада 2017
Sorts A2.2 to 3.3 are often deemed unstable fractures.Unstable fractures are characterized by comminution, a reverse Is group of medicines, AHA recommends {to start|to obliquity fracture line, or extension into the shaft in the femur. Third, the nail should be held nevertheless inside the femoral canalduring hip screw insertion so that the screw doesn't migrate proximally, a step that is critical in assuring assure a low tipapex distance. A short or perhaps a lengthy intramedullary nail can be used. Although the long nail could shield extra from the femoral shaft, the bone might be at risk of fracture distally around the end of the nail above the knee. The nail may well also bring about an intraoperative fracture in the anterior cortex with the distal femur for the reason that of a mismatch amongst the anterior bow on the nail and that on the femur. Care must be taken in the course of nail insertion to avoid fracture.Rtrochanteric fractures have already been classified by various systems,85 but they are extra practically termed stable or unstable (Figure four). Steady fractures ordinarily have two or three parts with intact medial and lateral buttresses and really should be treated with sliding hip screw fixation. The lateral buttress makes it possible for for any firm end point to the sliding on the screw.86 The sliding hip screw performs by getting a firmly anchored screw in the femoral head. The screw slides in the barrel in the side plate, enabling for compression of the neck in the femur against the greater trochanter. Over time and with weight bearing, the screw may perhaps slide, additional compressing the fracture. The important aspect inside the achievement in the hip screw would be the placement in the screw within the femoral head. The screw ought to be as deep as possible and centered with the head. The importance with the position has been quantified by the tip-apex distance, that may be, the distance between the tip on the screw plus the apex with the femoral head on the posterior nterior and lateral views. When this distance is 25 mm and also the opportunity of success and healing is exceptional. In the event the tip-apex distance is >25 mm along with the rate of failure is increased.Geriatric Orthopaedic Surgery Rehabilitation 6(two)Figure 4. The AO/OTA classification of the extra-capsular proximal femur fractures (intertrochanteric-subtrochanteric region). Based on this classification system, the femur is labeled bone 3, along with the proximal femur segment is labeled 1. The ``A sorts are extracapsular fractures. Kinds A1.1 to A2.1 are typically viewed as to be steady patterns. Kinds A2.two to 3.three are usually regarded as unstable fractures.Unstable fractures are characterized by comminution, a reverse obliquity fracture line, or extension into the shaft in the femur. In these cases, the lateral buttress is just not intact and will not supply an finish point to sliding, so a sliding hip screw features a larger rate of failure in these fracture patterns.88 The unstable fracture is greatest treated with an intramedullary nail since it gives the buttress for the proximal fragment.27 A fixed angle device, for instance an angled blade plate, might also be considered. You can find three essential technical points concerning the insertion of an intramedullary nail.
