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Related Concept Videos

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...
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...
Pain01:20

Pain

Pain serves as a critical warning signal that alerts the body to potential or actual harm. When mechanical pressure on the skin is intense, such as from a sharp pinch, the sensation transitions from touch to pain. Similarly, extreme temperatures, like a hot pot handle, convert the sensation of heat into pain. Pain can also result from overstimulation of other senses, such as blinding light, loud noise, or the intense heat from habañero peppers. This ability to sense pain is essential for...
Ankle Joint01:10

Ankle Joint

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...
Blood and Nerve Supply to the Bones01:29

Blood and Nerve Supply to the Bones

Bones are dynamic organs that require a rich supply of oxygen and nutrients. Around 5% to 10% of the cardiac output supplies blood to the bones. A typical long bone has three main sources: the nutrient artery, the metaphyseal and epiphyseal arteries, and the periosteal arteries.
Nutrient Artery
The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...

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Return to work after total hip and knee arthroplasty: a systematic review.

Rheumatology (Oxford, England)·2013
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Related Experiment Video

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Application of Acupotomy in a Knee Osteoarthritis Model in Rabbit
08:40

Application of Acupotomy in a Knee Osteoarthritis Model in Rabbit

Published on: October 20, 2023

[A man with a painful knee].

Wouter Schaasberg1, Maarten W G A Bronkhorst

  • 1Medisch Centrum Haaglanden, afd. Traumachirurgie, Den Haag, the Netherlands.

Nederlands Tijdschrift Voor Geneeskunde
|September 27, 2012
PubMed
Summary

A ruptured patellar tendon was successfully repaired using Krackow whipstitch sutures. This surgical technique offers a viable option for patellar tendon reconstruction.

Area of Science:

  • Orthopedic Surgery
  • Musculoskeletal Research

Background:

  • Patellar tendon ruptures are serious injuries requiring prompt surgical intervention.
  • Traditional repair methods have varying success rates and complication profiles.

Observation:

  • A 53-year-old patient experienced a traumatic rupture of the left patellar tendon.
  • The clinical presentation indicated a complete tear requiring surgical management.

Findings:

  • The patellar tendon was reconstructed utilizing the Krackow whipstitch technique.
  • Sutures were passed through strategically placed drill holes within the patella for secure fixation.

Implications:

  • This case highlights the efficacy of the Krackow whipstitch for patellar tendon repair.

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  • The technique provides a robust method for restoring extensor mechanism function.
  • Further studies can evaluate long-term outcomes and compare this method to other surgical approaches.