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Femoral Neck Stress Fracture

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481. Early Complications of Hip Resurfacing. (Abstract)

. Complications such as loosening, femoral neck notching, femoral neck fracture, deep vein thrombosis, stress fracture, nerve palsy, and infection were noted. Complications linked with loosening were categorized to either the femoral or acetabular component. A total of 86 early complications were observed in the 840 resurfacings. Twenty-three (2.7%) required operative intervention, and 10 (1.2%) were converted to stemmed hip arthroplasties. Of these 86 complications, the most common complication was deep vein (...) thrombosis, 19 instances (2.26% occurrence in 840), followed by femoral neck fracture, 11 (1.31%); infection, 10 (1.19%); femoral notching, 10 (1.19%); transient nerve palsy, 8 (0.95%); acetabular loosening, 6 (0.71%); hematoma, 5 (0.60%); and stress fracture, 4 (0.48%). The fractures occurred mostly in patients older than 60 years.Copyright © 2012 Elsevier Inc. All rights reserved.

2012 Journal of Arthroplasty

482. Intraoperative and Early Postoperative Complications After Hip Arthroscopic Surgery: A Prospective Multicenter Trial Utilizing a Validated Grading Scheme. (Abstract)

%, heterotopic ossification was 0.8%, and femoral neck stress fractures was 0.1%. There was no iatrogenic instability, avascular necrosis, or extra-abdominal fluid extravasation identified in this cohort. The overall complication rate, not including temporary LFC periportal and thigh numbness (sequela), was 8.3% (134 hips). Overall, a grade 1 complication was seen in 7.2% (117 hips), grade 2 in 0.6% (10 hips), grade 3 in 0.4% (6 hips), and grade 4 in 0.1% (1 hip). There was a significantly higher rate (...) in 1505 hips (93.2%), and 1273 hips (78.8%) underwent a labral repair procedure. The most common event was postoperative lateral femoral cutaneous (LFC) nerve disturbance (16.5%), which persisted beyond 6 months in only 1.6%. The incidence of iatrogenic chondral injuries was 1.2%, iatrogenic labral punctures was 0.9%, superficial portal infections was 1.1%, sensory deficits about the foot was 0.8%, deep venous thrombosis was 0.1%, pulmonary embolism was 0.1%, perineal numbness (pudendal nerve) was 1.4

2016 American Journal of Sports Medicine

483. Knee Pain

which of the following substances is most likely to increase a patient’s heat input? Alcohol Cannabis Cocaine Phencyclidine NEWS & VIDEOS Some Lose Independence After Surgical Tx of Femoral Neck Fx WEDNESDAY, March 6, 2019 (HealthDay News) -- A considerable proportion of older patients with femoral neck fracture are institutionalized or require walking aids 12 months after surgical treatment... 3D Model Musculoskeletal Connective Tissues Video How to Do a Median Nerve Block SOCIAL MEDIA Add to Any (...) inflammation Stress fractures of the tibia Malalignment of the lower extremities (jumper’s knee, which is an overuse injury to the patellar tendon at the attachment to the lower pole of the patella) Knee pain may be referred from the lumbar spine or hip or result from foot problems (eg, excessive pronation or rolling inward of the foot during walking or running). Musculoskeletal System of the Knee 3D Model Diagnosis History and physical examination Sometimes imaging tests Diagnosis requires a thorough

2013 Merck Manual (19th Edition)

484. Overview of Heat Illness

of Heat Illness Withdrawal from which of the following substances is most likely to increase a patient’s heat input? Alcohol Cannabis Cocaine Phencyclidine NEWS & VIDEOS Some Lose Independence After Surgical Tx of Femoral Neck Fx WEDNESDAY, March 6, 2019 (HealthDay News) -- A considerable proportion of older patients with femoral neck fracture are institutionalized or require walking aids 12 months after surgical treatment... 3D Model Musculoskeletal Connective Tissues Video Prone Quadriceps Stretch 1 (...) protein denaturation) and by regulation of cardiovascular responses. With prolonged or extreme temperature elevation, compensatory mechanisms are overwhelmed or malfunction, allowing inflammation and multiple organ dysfunction syndrome to occur. Heat output is modulated by changes in cutaneous blood flow and sweat production. Cutaneous blood flow is 200 to 250 mL/min at normal temperatures but increases to 7 to 8 L/min with heat stress (and facilitates heat loss by convective, conductive, radiant

2013 Merck Manual (19th Edition)

485. Radiation Exposure and Contamination

Illness Withdrawal from which of the following substances is most likely to increase a patient’s heat input? Alcohol Cannabis Cocaine Phencyclidine NEWS & VIDEOS Some Lose Independence After Surgical Tx of Femoral Neck Fx WEDNESDAY, March 6, 2019 (HealthDay News) -- A considerable proportion of older patients with femoral neck fracture are institutionalized or require walking aids 12 months after surgical treatment... 3D Model Musculoskeletal Connective Tissues Video Wrist Extensor Stretch 1. Begin (...) dose (~1% incidence) for sterility: Testes: > 6 Gy, onset ~3 wk Ovaries: > 3 Gy, onset < 1=""> Head and neck Mucositis, odynophagia, thyroid carcinoma Muscle and bone Myopathy, neoplastic changes, osteosarcoma Eyes Dose > ~0.5 Gy: Cataracts (after ~20 yr latent period; the higher the dose and the younger the age at exposure, the shorter the latent period) Lungs Acute pneumonitis Fractionated exposure > 30 Gy: Sometimes fatal (LD 50 ~ >10 Gy single high-dose exposure) Pulmonary fibrosis Kidneys

2013 Merck Manual (19th Edition)

486. Objectively measured physical activity trajectories predict adolescent bone strength: Iowa Bone Development Study. Full Text available with Trip Pro

intensity physical activity (MVPA) predicts bone strength.Starting at age 5 and continuing at 8, 11, 13, 15 and 17 years, Iowa Bone Development Study participants (n=530) wore an accelerometer for 3-5 days. At age 17, we assessed dual X-ray energy absorptiometry outcomes of mass and estimated geometry (femoral neck cross-sectional area and section modulus). We also assessed geometric properties (bone stress index and polar moment of inertia) of the tibia using peripheral computer quantitative tomography (...) Objectively measured physical activity trajectories predict adolescent bone strength: Iowa Bone Development Study. Physical activity improves bone strength and reduces the risk for osteoporotic fractures. However, there are substantial gaps in our knowledge as to when, how and how much activity is optimal for bone health.In this cohort study, we examined developmental trajectories of objectively measured physical activity from childhood to adolescence to discern if moderate-and-vigorous

2014 British Journal of Sports Medicine

487. Effects of cyclosporin-a on rat skeletal biomechanical properties. Full Text available with Trip Pro

anatomic sites, i.e. the lumbar vertebra, the middle femur shaft, and the proximal femur.CsA therapy at 7.5 and 1.5 mg/kg can significantly reduce the ultimate force, the ultimate stress and the energy absorption per unit of bone volume of the lumbar vertebra, with no effect on the middle femur. CsA therapy at 7.5 mg/kg can significantly reduce the ultimate force, the ultimate stress and the Young's modulus of the femoral neck, but not CsA at 1.5 mg/kg. Furthermore, CsA therapy at 7.5 and 1.5 mg/kg can (...) significantly reduce the bone mineral density of the lumber vertebra and the proximal femur, but have no effect on the middle femur. CsA therapy at 7.5 and 1.5 mg/kg can also significantly reduce the bone volume fraction of the proximal tibia and the lumber vertebra, but has no effect on the cortical thickness of the middle femoral shaft. In the 15 mg/kg CsA group only one rat survived, and the kidney and liver histology of the survived rat showed extensive tissue necrosis.Long-term use of CsA can weaken

2011 BMC Musculoskeletal Disorders

488. Serum uric acid is associated with bone health in older men: A cross-sectional population-based study. Full Text available with Trip Pro

Serum uric acid is associated with bone health in older men: A cross-sectional population-based study. Serum uric acid (UA) is a strong endogenous antioxidant. Since oxidative stress has been linked to osteoporosis, we examined the association between serum UA levels and bone mineral density (BMD), prevalent vertebral and nonvertebral fractures, and laboratory measures such as calcitropic hormones and bone turnover marker levels. This cross-sectional analysis consisted of 1705 community (...) , p = .001), parathyroid hormone (β = 0.09, p = .002), 25-hydroxyvitamin D (β = 0.09, p = .005), and was negatively associated with urinary excretion amino-terminal cross-linked telopeptide of type 1 collagen (β = -0.09, p = .006). Overall, serum UA accounted for 1.0% to 1.44% of the variances in BMD (R(2)  = 0.10 to 0.22). In multiple logistic regression analyses, above-median serum UA levels were associated with a lower prevalence of osteoporosis at the femoral neck [odds ratio (OR) = 0.42, 95

2011 Journal of Bone and Mineral Research

489. 2011 Marshall Urist Young Investigator Award: When to Release Patients to High-impact Activities after Hip Resurfacing. Full Text available with Trip Pro

2011 Marshall Urist Young Investigator Award: When to Release Patients to High-impact Activities after Hip Resurfacing. Surface replacement arthroplasties are commonly performed in young, active patients who desire return to high-impact activities including heavy manual labor and recreational sports. Femoral neck fracture is an arthroplasty-related complication unique to surface replacement arthroplasty. However, it is unclear regarding whether patients are at lower risk for fracture after (...) a certain postoperative time.We therefore raised the following questions: (1) does stress shielding occur after surface replacement arthroplasty, and (2) when does bone mineral density return to normal so patients can return to high-impact activities without excessive risk of fracture?We prospectively enrolled 90 patients (96 hips) with either surface replacement arthroplasty or THA, and performed dual energy x-ray absorptiometry scans at 6 weeks, 6 months, 1 year, and 2 years. We analyzed bone density

2011 Clinical Orthopaedics and Related Research

490. Hip Full Text available with Trip Pro

between the femoral head and the superior acetabulum is normally between 2 and 7 mm. The head of the femur is attached to the shaft by a thin neck region that is often prone to fracture in the elderly, which is mainly due to the degenerative effects of . Transverse and sagittal angles of acetabular inlet plane. The acetabulum is oriented inferiorly, laterally and anteriorly, while the femoral neck is directed superiorly, medially, and slightly anteriorly. Articulal angles [ ] The transverse angle (...) acetabular rim. In normal hips in children aged between 11 and 24 months, it has been estimated to be on average 20°, ranging between 18° to 25°. It becomes progressively lower with age. Suggested to classify the angle as abnormally increased include: 30° up to 4 months of age. 25° up to 2 years of age. Femoral neck angle [ ] The angle between the longitudinal axes of the femoral neck and shaft, called the caput-collum-diaphyseal angle or CCD angle, normally measures approximately 150° in newborn and 126

2012 Wikipedia

491. Hip replacement Full Text available with Trip Pro

. Fracture [ ] Bones with internal fixation devices in situ are at risk of fractures at the end of the implant, an area of relative mechanical stress. Post-operative femoral fractures are graded by the . Vein thrombosis [ ] such as and are relatively common following hip replacement surgery. Standard treatment with is for 7–10 days; however treatment for more than 21 days may be superior. Research from 2013 has on the other hand suggested that anticoagulants in otherwise healthy patients undergoing a so (...) ) and repaired using . Although this approach has a lower dislocation risk than the posterior approach, critics note that occasionally the abductor muscles do not heal back on, leading to pain and weakness which is often very difficult to treat. Antero-lateral approach [ ] The anterolateral approach develops the interval between the and the gluteus medius. The Gluteus medius, gluteus minimus and hip capsule are detached from the anterior (front) for the greater trochanter and femoral neck and then repaired

2012 Wikipedia

492. Legg?Calvé?Perthes syndrome

increased opacity and focal in the head of the femur, and later in the disease, collapse and fracture of the neck of the femur. The recommended treatment is , but conservative treatment (rest, exercise restriction, and pain medication) may be effective in a limited number of cases (less than 25%, according to some studies). In dogs, the prognosis is excellent with surgery. [ ] tablets may also be helpful. References [ ] Kim HK (2012). "Pathophysiology and new strategies for the treatment of Legg-Calvé (...) ) is a childhood hip disorder initiated by a disruption of blood flow to the head of the femur. Due to the lack of blood flow, the bone dies ( or ) and stops growing. Over time, healing occurs by new blood vessels infiltrating the dead bone and removing the necrotic bone which leads to a loss of and a weakening of the femoral head. The bone loss leads to some degree of collapse and deformity of the femoral head and sometimes secondary changes to the shape of the hip socket. It is also referred to as avascular

2012 Wikipedia

493. Osteonecrosis of the jaw Full Text available with Trip Pro

." In fact no radiographic findings are specific for bone infarction / osteonecrosis. A variety of pathologies may mimic bone infarction, including stress fractures, infections, inflammations, and metabolic and neoplastic processes. The limitations apply to all imaging modalities, including plain , studies, , and (MRI). Through-transmission alveolar ultrasound, based on quantitative ultrasound (QUS) in combination with panoramic dental radiography ( ) is helpful in assessing changes in jawbone density (...) be no symptoms for weeks or months, until lesions with exposed bone appear. Lesions are more common on the than the . and Erythema and suppuration Post radiation maxillary bone osteonecrosis is something that is found more in the lower jaw (mandible) rather than the maxilla (upper jaw) this is because there are many more blood vessels in the lower jaw. The symptoms of this are very similar to the symptoms of MRONJ. Patients are in a lot of pain, the area may swell up, bone may be seen and fractures may take

2012 Wikipedia

494. Hysterectomy

and Gynecology . 86 (1): 72–7. : . . Durães Simões R, Chada Baracat E, Szjenfeld VL, de Lima GR, José Gonçalves W, de Carvalho Ramos Bortoletto C (1995). "Effects of simple hysterectomy on bone loss". Revista Paulista de Medicina . 113 (6): 1012–5. : . . Hreshchyshyn MM, Hopkins A, Zylstra S, Anbar M (1988). "Effects of natural menopause, hysterectomy, and oophorectomy on lumbar spine and femoral neck bone densities". Obstetrics and Gynecology . 72 (4): 631–8. . Menon RK, Okonofua FE, Agnew JE, Thomas M (...) . For this reason exact numbers are not known, and risk factors are poorly understood. It is also unknown if the choice of surgical technique has any effect. It has been assessed that the risk for urinary incontinence is approximately doubled within 20 years after hysterectomy. One long-term study found a 2.4 fold increased risk for surgery to correct urinary stress incontinence following hysterectomy. The risk for vaginal prolapse depends on factors such as number of vaginal deliveries, the difficulty of those

2012 Wikipedia

495. Medial migration of lag screw with intrapelvic dislocation in gamma nailing--a unique problem? A report of 2 cases. (Abstract)

Medial migration of lag screw with intrapelvic dislocation in gamma nailing--a unique problem? A report of 2 cases. Within the last decade, intramedullary nailing systems have gained popularity in the treatment of unstable fractures of the trochanteric region with good clinical results. However, these implants are not free of complications. Commonly reported treatment failures include implant cutout through the femoral neck, stress-derived femur fractures at the distal end of the nail (...) , and secondary rotational displacement and varus deformity of the femoral neck and head. Only few reports exist on primary medial migration of the lag screw after treatment with intramedullary implants. We report on a rarely described complication in 2 patients who underwent osteosynthesis with a Gamma 3 nail (Stryker, Mahwah, NJ). Both patients presented with implant failures due to primary medial migration of the lag screw. Complete separation of the implant occurred, and the lag screw penetrated through

2010 Journal of Orthopaedic Trauma

496. University of Texas H.S.C. San Antonio Pioglitazone in Non-Alcoholic Steatohepatitis Trial (UTHSCSA NASH Trial)

with prediabetes (IFG/IGT). Osteoporotic Fractures [ Time Frame: 18 and 36 months ] Number of patients with osteoporotic fractures Molecular Pathways of Liver Glucose and Lipid Signaling; Inflammatory Pathways; Oxidative Stress; Other. [ Time Frame: At 18 (2nd liver biopsy) and 36 (3rd liver biopsy) months. ] Bone Mineral Density [ Time Frame: 18 and 36 months ] Bone mineral density measured at the levels of spine, femoral neck, hip, and wrist by DXA. Eligibility Criteria Go to Information from the National

2009 Clinical Trials

497. Omnifit Hydroxylapatite (HA) Hip Outcomes Study

Healthy Volunteers: No Criteria Inclusion Criteria: For use as a universal hip replacement: Acute femoral neck fracture. Non-union of femoral head and neck fractures. Aseptic necrosis of the femoral head. Osteoarthritis, rheumatoid arthritis, or post-traumatic arthritis of the hip with minimal acetabular involvement or distortion. Salvage of failed total hip arthroplasty. For use as a total hip replacement: Severely disabled joints resulting from painful osteoarthritis, rheumatoid arthritis, or post (...) -traumatic arthritis. Revision of previous unsuccessful femoral head replacement, cup arthroplasty, or other procedure. Exclusion Criteria: Active infection in or near the hip joint. Pathological bone conditions which would significantly compromise the ability to carry physiologic stress levels and for which bone grafting would be inappropriate (i.e. severe osteoporosis, Paget's Disease, renal osteodystrophy, etc.). Neuro-muscular disorders in which the potentially adverse effects on prosthesis function

2009 Clinical Trials

498. Cemented versus non-cemented hemiarthroplasty of the hip as a treatment for a displaced femoral neck fracture: design of a randomised controlled trial. Full Text available with Trip Pro

Cemented versus non-cemented hemiarthroplasty of the hip as a treatment for a displaced femoral neck fracture: design of a randomised controlled trial. A discussion is ongoing whether displaced femoral neck fractures in elderly patients should be treated with a non-cemented or a cemented hemiarthroplasty. A recent Cochrane analysis stresses the importance of further research into the relative merits of these techniques. We hypothesise that non-cemented hemiarthroplasty will result in at least (...) the same technical-functional outcome and complication rate, with a shorter operation time.A randomised controlled multicentre trial will be performed.The study population consists of 200 patients of 70 years and older. Patients with a displaced femoral neck fracture will be allocated randomly to have a cemented or a non-cemented hemiarthroplasty. Data will be collected preoperatively, immediately postoperatively, and 6 weeks, 3 months and 1 year postoperatively.The main outcome measures of this study

2009 BMC musculoskeletal disorders Controlled trial quality: uncertain

499. Transtrochanteric Rotational Osteotomy for Nontraumatic Osteonecrosis of the Femoral Head in Young Adults. Full Text available with Trip Pro

score of 80.1 points (range, 44-100 points) at the latest followup. Forty-four hips showed no radiographic evidence of progression of collapse. Ten hips showed progressive collapse, seven hips showed progressive varus deformity, three hips had stress fractures of the femoral neck, and one hip had infection. We believe TRO with varization is worth attempting for extensive osteonecrosis of the femoral head in young adults, although failures and complications are not uncommon.Level IV, case series. See (...) Transtrochanteric Rotational Osteotomy for Nontraumatic Osteonecrosis of the Femoral Head in Young Adults. Transtrochanteric rotational osteotomy (TRO) is a controversial procedure with reported inconsistent results. We reviewed 50 patients (60 hips) who underwent this procedure for extensive osteonecrosis of the femoral head, focusing on varization to determine its effectiveness as a head-preserving procedure in young adults. The mean age of the patients was 28 years (range, 18-46 years

2009 Clinical Orthopaedics and Related Research

500. Bilateral low-energy simultaneous or sequential femoral fractures in patients on long-term alendronate therapy. (Abstract)

Bilateral low-energy simultaneous or sequential femoral fractures in patients on long-term alendronate therapy. While alendronate therapy has been shown to decrease the risk of vertebral and femoral neck fractures in postmenopausal osteoporotic patients, recent reports have associated long-term alendronate therapy with unilateral low-energy subtrochanteric and diaphyseal femoral fractures in a small number of patients. To our knowledge, there has been only one report of sequential bilateral (...) patients who sustained low-energy bilateral subtrochanteric or diaphyseal femoral fractures while on long-term alendronate therapy were identified. One patient presented with simultaneous bilateral diaphyseal fractures, two patients had sequential subtrochanteric fractures, and four patients had impending contralateral subtrochanteric stress fractures noted at the time of the initial fracture. Of the latter four, one patient had a fracture through the stress site and the other three patients had

2009 The Journal of Bone and Joint Surgery. American Volume

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