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Related Concept Videos

Bones of the Lower Limb: Femur and Patella01:16

Bones of the Lower Limb: Femur and Patella

The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the neck...
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In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
Knee Joint01:23

Knee Joint

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Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

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Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...
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Related Experiment Videos

Knee dislocation in overweight patients.

Erno K Peltola1, Jan Lindahl, Harri Hietaranta

  • 1Department of Radiology, Helsinki Medical Imaging Center, Helsinki University Hospital, Töölö Trauma Center, Topeliuksenkatu 5, Helsinki, PL 266, 00029 HUS, Finland. erno.peltola@fimnet.fi

AJR. American Journal of Roentgenology
|December 23, 2008
PubMed
Summary
This summary is machine-generated.

Obesity does not impede knee MRI quality. Overweight individuals experience knee dislocations from low-energy trauma, with incidence rates significant enough to warrant clinical awareness, especially as obesity prevalence rises.

Related Experiment Videos

Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Trauma Medicine

Background:

  • Knee dislocation is a severe injury often associated with high-energy trauma.
  • The impact of increased body mass index (BMI) on knee dislocation incidence, injury patterns, and diagnostic imaging remains incompletely understood.
  • Obesity prevalence is rising globally, potentially altering the epidemiology of musculoskeletal injuries.

Purpose of the Study:

  • To evaluate the incidence, causes, and injury patterns of knee dislocation in patients with normal versus increased BMI.
  • To assess MRI findings in knee dislocations across different BMI categories.
  • To determine if obesity affects the quality and diagnostic utility of knee MRI examinations.

Main Methods:

  • Retrospective review of 24 knee dislocation cases from 2000-2007 at a level 1 trauma center.
  • Analysis of patient demographics, BMI, trauma mechanisms, injury patterns, and surgical findings.
  • Review of pre-operative MRI examinations for diagnostic quality and findings.

Main Results:

  • Eleven of 24 patients had a BMI > 25, with most low-energy dislocations resulting from simple falls.
  • Two morbidly obese patients (BMI > 40) had no popliteal tendon or irreversible peroneal nerve injuries.
  • Obesity did not interfere with the diagnostic quality of knee MRI examinations.
  • Annual incidence of low-energy knee dislocation in overweight patients was estimated at 1.0 per million.

Conclusions:

  • Low-energy knee dislocations in obese patients are not rare at trauma centers.
  • Increasing obesity rates may lead to changes in emergency department injury presentations.
  • Radiologists and clinicians should consider knee dislocation in overweight patients, even after seemingly minor trauma like a simple fall.