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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
Masonry Paving01:21

Masonry Paving

The construction of masonry paving involves using materials such as bricks, stones, and concrete masonry units. These materials are chosen for their shape, color, strength, and resistance to abrasion and weathering. Masonry units can be installed dry on a thin layer of sand and a gravel base, or they can be embedded in mortar or asphalt on a concrete slab. For areas subjected to heavy vehicular loads, a rigid base layer of reinforced or unreinforced concrete is recommended. In contrast,...

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Related Experiment Video

Updated: Jul 18, 2026

Surgical Management of Meatal Stenosis with Meatoplasty
04:53

Surgical Management of Meatal Stenosis with Meatoplasty

Published on: November 30, 2010

[Mosaicplasty].

Yasuaki Nakagawa1

  • 1Kyoto University Graduate School of Medicine, Department of Orthopaedics.

Clinical Calcium
|December 5, 2006
PubMed
Summary

Autogenous osteochondral grafting shows promising mechanical recovery in cartilage over time, with stiffness returning to normal levels in rabbits and humans. This technique is effective for various cartilage defects, yielding good short-term clinical outcomes without donor site morbidity.

Area of Science:

  • Orthopedic surgery
  • Regenerative medicine
  • Biomaterials science

Context:

  • Cartilage defects are common in joints like the knee, ankle, and elbow.
  • Current treatments for cartilage damage have limitations.
  • Autogenous osteochondral grafting is a surgical option for cartilage repair.

Purpose:

  • To review the basic science and clinical outcomes of autogenous osteochondral grafting.
  • To evaluate the mechanical properties and long-term viability of grafted cartilage.
  • To assess the efficacy and indications for this surgical procedure.

Summary:

  • The operative technique preserves the mechanical properties of the grafted cartilage plug.
  • In rabbit models, cartilage stiffness normalized by 12-24 weeks and exceeded normal levels by 52 weeks.

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Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis
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Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis

Published on: October 12, 2016

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Last Updated: Jul 18, 2026

Surgical Management of Meatal Stenosis with Meatoplasty
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Published on: November 30, 2010

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis
06:38

Establishment of a Segmental Femoral Critical-size Defect Model in Mice Stabilized by Plate Osteosynthesis

Published on: October 12, 2016

  • Human studies showed normalized stiffness at 1 year post-operation.
  • Indications include traumatic defects, osteochondritis dissecans, osteonecrosis, and early osteoarthritis.
  • Short-term clinical results are good with no donor site issues, but long-term follow-up is necessary.

    • Impact:

    • Autogenous osteochondral grafting offers a viable solution for cartilage repair with good mechanical restoration.
    • The procedure demonstrates potential for successful joint function restoration in various cartilage pathologies.
    • Further long-term studies are essential to fully understand the durability and success rates of this treatment.