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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...
Bones of the Lower Limb: Tibia and Fibula01:10

Bones of the Lower Limb: Tibia and Fibula

The tibia is the main weight-bearing bone of the lower leg. It is larger than the fibula with which it is paired. The tibia is also the second longest bone in the body and is located right below the skin. The proximal end of the tibia forms the medial and the lateral condyle, which articulates with the condyles of the femur to form the knee joint. Between the articulating surfaces is the irregular elevated area known as the intercondylar eminence that serves as the inferior attachment point for...
Knee Joint01:23

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...
Muscles that Move the Leg01:23

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The movement of the legs is facilitated by numerous muscles located within the anterior, medial, and posterior compartments of the thigh.
Anterior Compartment
The quadriceps femoris, the most visible muscle of the anterior compartment, is integral for leg extension and thigh flexion. It is formed by merging four distinct muscles — the vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris. The quadriceps tendon, a shared tendon of the four quadriceps muscles, is affixed to...
Inclination of a Line01:25

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The inclination of a line describes its angle of tilt with respect to the horizontal axis. While a line itself is an abstract object with no thickness, its orientation on the Cartesian plane is determined by its slope, which reflects how steeply it rises or falls. The inclination angle, always measured counterclockwise from the positive x-axis, varies between zero and π radians for nonhorizontal lines. This angle directly relates to the slope, providing a geometric interpretation of the line's...
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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...

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Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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The relationship between tibial slope and meniscal insertion.

Yong Seuk Lee1, Jin Goo Kim, Hong Chul Lim

  • 1Department of Orthopaedic Surgery, Korea University Ansan Hospital, 516 Gozan-dong, Danwon-gu, Ansan 425-707, Korea.

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|June 26, 2009
PubMed
Summary

This study found that while tibial slope and meniscal insertion measurements are reliable using X-rays and MRI, there

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Area of Science:

  • Orthopedics
  • Radiology
  • Anatomy

Background:

  • Increasing interest in the anatomical significance of meniscal insertion.
  • Limited data exists on the relationship between tibial slope and meniscal insertion.

Purpose of the Study:

  • To investigate the relationship between tibial slope and meniscal insertion.
  • To assess the reliability and correlation of measurements using lateral radiographs and MRI.

Main Methods:

  • Lateral radiographs and MRI sagittal images from 100 healthy individuals.
  • Measurement of tibial slope and meniscal insertion angles relative to the tibial axis.
  • Assessment of inter-observer and intra-observer reliability.

Main Results:

  • Measurements of tibial slope and meniscal insertion were reproducible and reliable.
  • Significant differences were observed between radiograph and MRI measurements (lateral: ~16.4°, medial: ~6.0°).
  • No linear correlation was found between radiograph and MRI measurements.

Conclusions:

  • Lateral radiographs and MRI provide reliable measurements of tibial slope and meniscal insertion, respectively.
  • Despite reliability, significant differences exist between the two imaging modalities.
  • No direct correlation was established between tibial slope and meniscal insertion measurements via these methods.