The optimal design, unipolar or bipolar head, remains unclear. Furthermore, the extra cost of bipolar endoprostheses does not seem. Performing a hemiarthroplasty rather than a total hip arthroplasty in our defined patient population may put the patient at a higher risk for morbidity and future complications. These findings are consistent with the results of two other metaanalyses showing no decrease in the rate of acetabular wear with bipolar vs. Surgical technique selfcentering bipolar and modular cathcart unipolar endo heads depuy synthes 3 assembly selfcentering bipolar modular cathcart unipolar note. Hemiarthroplasty is a common procedure in the treatment of femoral neck fractures in the elderly. The purpose of this study was to compare the causes of failure and longevity in both types of ha.
Hemiarthroplasty ha is an effective procedure for treatment of femoral neck fracture. Unipolar versus bipolar hemiarthroplasty for displaced femoral neck. Unipolar austin moores prosthesis versus cemented bipolar arthroplasty in displaced neck of femur fracture, in elderly patients. Major or longterm minor depression without highs is considered unipolar depression by default. Where a unipolar scale has one pole, a bipolar scale has two polar opposites. In elderly patients suffering from a displaced femoral neck fracture, a cemented hip arthroplasty, compared to if, has been shown to reduce the. A systematic literature search up to april, 2014 was conducted to include rcts comparing bh with uh. Bipolar results from disturbances in the areas of the brain that regulate mood it involves periods of excitability mania alternating with periods of depression this may affects men and women equally usually appears between ages 15 25 cause unknown it occurs more often in relatives of people with bipolar disorder, if you believe you have bipolar you might want to visit somewhere like. Unipolar and bipolar stepper motors microchip technology. Unipolar vs bipolar hemiarthroplastydennis zw ng and kevin bl lee 198 materials and methods all patients who underwent hemiarthroplasty for displaced neck of femur fractures between 1 january 2004 and 31 december 2007 were analysed from a log of all operative procedures. Unipolar depression definition of unipolar depression by. Comparison of hemiarthroplasty and total hip arthroplasty in.
Bipolar vs unipolar free college essays, term paper help. Unipolar versus bipolar hemiarthroplasty for displaced. View bipolar hemiarthroplasty ppts online, safely and virus free. If you or someone you know is experiencing these symptoms, its important to visit your counseling center or a mental health professional to get the right diagnosis and treatment. In this paper, the spwm sinusoidal pulse width modulation technique of unipolar and bipolar inverters is presented and. Unipolar definition of unipolar by medical dictionary. Unipolar depression is a mental disorder that results in a patient having episodes of lowmood, low selfesteem, loss of interest, loss of pleasure in enjoyable activities. In the next decade, no other major country except china can possibly narrow the gap between itself and the. Hemiarthroplasty or total hip arthroplasty in recent femoral. When the person experiences a depressive episode only, then it is called a unipolar disorder. Click here to learn about hip hemiarthroplasty unipolar, which is performed by the specialtytrained doctors at orthopedic associates in port huron, michigan. Maletic advises that taking the time to gather and interpret complete patient, family, and treatment histories, heteroanamnesis, and temps scores 6 remains the best strategy for clinicians to differentiate bipolar disorder from unipolar depression. However, it is debatable whether unipolar or bipolar ha is the most suitable implant.
The hip coxofemoral joint is a large and stable diarthroidal ballandsocket joint formed by the articulation between the femoral head and the. Unipolar or bipolar hemiarthroplasty for femoral neck fractures in the elderly. Dislocation of a hemiarthroplasty is uncommon and has a reported overall rate of approximately 3. Jun 01, 2019 its easy to be confused over the differences between unipolar depression and bipolar disorder depression as they often look so similar. Unipolar versus bipolar hip hemiarthroplasty in the treatment. Unipolar versus bipolar hemiarthroplasty 7 subjects and methods the present study is of intracapsular fracture neck of femur in elderly patients above the age of 60 years, irrespective of gender, treated with hemiarthroplasty using uncemented unipolar austin moores prosthesis amp in 20 patients and. In this lesson, we will explore the difference between bipolar and unipolar depression and the symptoms of each. Monopolar electrocautery monopolar electrosurgery can be used for several modalities including cut, blend, desiccation, and fulguration. The guest edited thematic issues are published free of charge.
Ninh, md, anil sethi, md,y mohammed hatahet, md, clifford les, phd, massimo morandi, md, and rahul vaidya, md, frcscy abstract. Bipolar hemiarthroplasty, total hip replacement, neglected femoral neck fracture, hip fracture introduction hip fracture is an international public health problem mainly occurring in elderly patients and resulting in a high mortality. The type of mental illness in which the patient displays abnormal behavior is called a mental disorder. Printed on acidfree paper in the uk by the charlesworth group. Fortyone patients above 60 years of age and an acute displaced fracture of the femoral neck were randomly allocated to treatment by either unipolar or bipolar hemiarthroplasty, in the department of orthopaedics, between september 2009 and october 2012. Conclusion the bipolar has seem to result in better hrqol beyond the first two years after surgery compared to unipolar has. Jcdr fracture neck of femur, hemiarthroplasty, total hip. A bipolar scale indicates a respondent to balance two different qualities, defining the relative proportion of those qualities. Unipolar hemiarthroplasty versus bipolar hemiarthroplasty in the most elderly patients with displaced femoral. The poly is packaged inside the shell so first thing to do is to use liner release forceps to remove liner from shell then place poly insert on head. Pdf background whether bipolar hemiarthroplasty bh for displaced femoral neck fractures has. Someone with unipolar depression doesnt go through the highs of bipolar depression. A bipolar world is more likely than a unipolar or multipolar one. Unipolar versus bipolar hemiarthroplasty for displaced femoral.
Osteoporosis introduction contemporary evidence from randomised. Get the knowledge you need in order to pass your classes and more. Unipolar or bipolar hemiarthroplasty for femoral neck. A careful assessment of select criteria can help make the distinction in an analysis adjusted for time since diagnosis of unipolar depression, the temporal order of prescribed drugs, and other concomitant medications, the use of lithium was associated with a 53% reduction in the risk of readmission, compared with. Both age and the level of physical activity may also influence the risk of acetabular wear. When the episode occurs between the two poles of depression and mania, it is called bipolar disorder. The use of internal fixation, bipolar hemiarthroplasty and uncemented. Nov 11, 2015 hip replacement using hemiarthroplasty ha is a common surgical procedure in elderly patients with femoral neck fractures.
Oct 01, 2014 probably unipolar voltages are a single voltage referenced to zero volt as ground. How does unipolar depression differ from bipolar depression. Difference between bipolar and unipolar bipolar vs unipolar. Whether bipolar hemiarthroplasty bh for displaced femoral neck fractures has benefit over unipolar hemiarthroplasty uh remains controversial. Unipolar versus bipolar hip hemiarthroplasty in the. Pdf unipolar hemiarthroplasty versus bipolar hemiarthroplasty in. Hemiarthroplasty unipolar and bipolar indications approach and procedure moderator. Below is a closer look at the symptoms of both depression and mania. The use of bipolar prosthesis in the management of displaced fracture neck. There are many inverter topologies but output current distortion and efficiency are the two main parameters for the selection of inverters. A person may start of being happy and then go quickly to becoming sad or depressed. Prediction of a unipolar chinese century is entirely contrary to the post cold war forecast of multipolarization. Bipolar has a positive and a negative voltage referenced to zero volts. Unipolar hemiarthroplasty versus bipolar hemiarthroplasty in the.
Conclusion based on the results of this study, there does not appear to be any advantage to the use of a bipolar endoprosthesis in the management of displaced femoral neck fractures in the elderly. Our results show that unipolar and bipolar sealers are clinically equivocal with no significant difference in postoperative nadir, drain output, or transfusion rates. No significant differences were found between the unipolar and bipolar groups. For example, a common bipolar scale includes the following choices. Hip hemiarthroplasty unipolar versus bipolar hip hemiarthroplasty in the treatment of femoral neck fractures in the elderly ali a. Most logic gate power supplies and signals are unipolar. Unipolar vs bipolar likert scale questions questionpro. Rona hu discusses the probabilistic approach to diagnosing unipolar vs. To our knowledge, this is the largest nonindustryfunded study to compare unipolar vs bipolar sealer in tka.
Bipolar has displayed a later onset of acetabular erosion compared to unipolar has. Information was collected from all participants after obtaining written informed consent in accordance. Mbbs singapore, mrcs edinburgh mrcs edinburgh, mmed. The choice of prosthesis in hemiarthroplasty is controversial for geriatric patients after femoral neck fracture. Hip dislocation after modular unipolar hemiarthroplasty. A systematic literature search up to april, 2014 was conducted to include rcts comparing bh with uh for. Is there a significant difference in surgery and outcomes.
They share the symptoms of sadness, hopelessness, pessimism, anxiety and sleep problems, but at some point, unipolar depression and bipolar depression go off in very different directions. Sep 10, 2017 the femoral head can be replaced two 2 different ways, either as unipolar or bipolar. To assess the safety and efficacy that compare bipolar hemiarthroplasty with unipolar hemiarthroplasty for the treatment of femoral neck fracture in the patient aged more than 65 years. This study was approved by the local ethics committee of uludag university research ethics committee 26 july 2016. Probably unipolar voltages are a single voltage referenced to zero volt as ground. The treatment of choice for a displaced femoral neck fracture in the most elderly patients is a cemented hemiarthroplasty ha. A total hip replacement total hip arthroplasty or tha consists of replacing both the acetabulum and the femoral head while hemiarthroplasty generally only replaces the femoral head. Pdf unipolar versus bipolar hemiarthroplasty for displaced. There are two types of options, including unipolar hemiarthroplasty uh and bipolar hemiarthroplasty bh, when using a hemiarthroplasty. The aim of this study was to evaluate hip function, health related quality of life hrqol, surgical outcome.
Bipolar or unipolar hemiarthroplasty after femoral neck. Unipolar hemiarthroplasty versus bipolar hemiarthroplasty in the most elderly patients with displaced femoral neck fractures. Bipolar disorder is a condition in which people experience extensive mood swings. Differences between unipolar depression and bipolar. Dislocation and dissociation of bipolar hip hemiarthroplasty. Unipolar prostheses has a onepiece design where the hip movement occurs between the prosthesis and the acetabulum hip socket. Modular bipolar hemiarthroplasty for fracture neck of femur using. But under current conditions, a bipolar international configuration is more likely than a multipolar or unipolar one. In a unipolar hemiarthroplasty only the prosthetic femoral head articulates in the acetabulum, only one point of movement uni 1 in a bipolar hemiarthroplasty there are two points of movement bi 2. What are the differences between bipolar and unipolar cautery. The main theoretical advantage of a bipolar over a unipolar prosthesis is the reduction of acetabular erosion due to movement taking place within the implant. Unipolar or bipolar hemiarthroplasty in the treatment of displaced.
The difference between unipolar and bipolar depression is defined by the symptoms of unipolar depression. It has been noted that patients undergoing hemiarthroplasty for fracture of the hip can indeed experience compromised. Hip hemiarthroplasty unipolar orthopedic associates of. Pdf hemiarthroplasty ha is generally considered to be the treatment of choice in the most elderly patients with a. Hip replacement using hemiarthroplasty ha is a common surgical procedure in elderly patients with femoral neck fractures. Among these procedures, hemiarthroplasty has become the most preferred treatment option for surgeons according to the surveys. Using a pencil instrument, the active electrode is placed in the entry site and can be used to cut tissue. Unipolar versus bipolar hemiarthroplasty for displaced femoral neck fractures. Unipolar and bipolar pwm inverter semantic scholar. Although the diagnosis is more complex than that, it does serve as a starting point. The femoral head can be replaced two 2 different ways, either as unipolar or bipolar.
Unipolar versus bipolar hemiarthroplasty 7 subjects and methods the present study is of intracapsular fracture neck of femur in elderly patients above the age of 60 years, irrespective of gender, treated with hemiarthroplasty using uncemented unipolar austin. Advantages of the unipolar prosthesis include lower cost and no risk of polyethylene wear debris. However, questions remain regarding the choice of unipolar or bipolar ha. How to differentiate bipolar disorder from unipolar. Feb 08, 2011 hemiarthroplasty ha is generally considered to be the treatment of choice in the most elderly patients with a displaced fracture of the femoral neck. The possible advantages of a bipolar ha are a better range of motion and less acetabular wear. A retrospective study assessed 686 hips, including 77% unipolar has and 23% bipolar has. The difference between bipolar disorder and unipolar. Modular bipolar hemiarthroplasty for fracture neck. Unipolar versus bipolar exeter hip hemiarthroplasty. Considerable debate still exists in the choice between unipolar and bipolar designs.
Inverter is basically an interface between dc source like photovoltaic cell and ac networks. Unipolar hemiarthroplasty versus bipolar hemiarthroplasty in patients with displaced femoral neck fractures. Unipolar hemiarthroplasty versus bipolar hemiarthroplasty. This prospective randomized trial compared the efficacy of unipolar versus bipolar hemiarthroplasty in elderly patients or 65 years with displaced femoral neck fractures in terms of quality. We hypothesised that selection criteria for unipolar or bipolar prostheses could be constructed based on factors affecting mortality. Hip replacement is currently one of the most common orthopaedic operations, though patient satisfaction short and longterm varies widely. Kanto et al 33, finland, 2014, 88 unipolar vs 87 bipolar rct at 5 year follow. The decision to perform hemiarthroplasty using a unipolar or bipolar prosthesis remains controversial, with proponents on either side. Unipolar versus bipolar uncemented modular hemiarthroplasty. Come browse our large digital warehouse of free sample essays. Until researchers develop more advanced diagnostic procedures, dr.
However, there is inadequate evidence to support the choice between unipolar ha or bipolar ha. Mar 16, 2018 hemiarthroplasty ha is an effective procedure for treatment of femoral neck fracture. Hemiarthroplasty and total hip arthroplasty for treating primary. Bipolar and unipolar voltages and their significance. Unipolar vs bipolar hemostasis in total knee arthroplasty. Hemiarthroplasty ha is generally considered to be the treatment of choice in the most elderly patients with a displaced fracture of the femoral neck. The difference between bipolar disorder and unipolar depression healthyplace. The mesh terms hip fractures, femoral neck fractures, arthroplasty, hemiarthroplasty, hip prosthesis and multiple keywords unipolar, bipolar. Jan 24, 2015 whether bipolar hemiarthroplasty bh for displaced femoral neck fractures has benefit over unipolar hemiarthroplasty uh remains controversial. Hip dislocation after modular unipolar hemiarthroplasty christopher c. Unipolar hemiarthroplasty versus bipolar hemiarthroplasty in. All operations were performed through an anterolateral approach and used the same stem cemented exeter 26.
82 647 1329 489 1361 748 824 180 1303 537 1381 683 1462 1202 1529 1438 876 1268 61 200 1382 857 305 1347 777 729 231 796 523