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Related Experiment Video

Updated: May 30, 2026

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
06:28

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Published on: September 2, 2025

The painful knee after TKA: a diagnostic algorithm for failure analysis.

S Hofmann1, G Seitlinger, O Djahani

  • 1Department Joint Reconstruction, Head Knee Training Centre, General & Orthopaedic Hospital, 8852 LKH-Stolzalpe, Austria. hofmann.siegfried@chello.at

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
|August 9, 2011
PubMed
Summary

A diagnostic algorithm helps identify causes of pain after total knee arthroplasty (TKA). This systematic approach aids surgeons in analyzing unexplained painful TKAs and planning revision surgery effectively.

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Area of Science:

  • Orthopedics
  • Surgical Outcomes
  • Pain Management

Background:

  • Pain after total knee arthroplasty (TKA) affects approximately 20% of patients.
  • Some painful TKAs necessitate early revision surgery within five years.
  • Unexplained painful TKA presents a significant challenge for surgeons.

Purpose of the Study:

  • To describe a practical 10-step diagnostic algorithm for analyzing painful total knee arthroplasty.
  • To provide a structured approach for identifying failure mechanisms in TKA.

Main Methods:

  • The algorithm involves a comprehensive evaluation including extended patient history, pain analysis, and psychological assessment.
  • It incorporates a thorough clinical examination of the knee, spine, hip, and ankle.
  • Diagnostic steps include laboratory tests, joint aspiration, test infiltration, standard radiography, and advanced imaging techniques.

Related Experiment Videos

Last Updated: May 30, 2026

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis
06:28

Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

Published on: September 2, 2025

Main Results:

  • The described diagnostic algorithm enables a sufficient failure analysis in nearly all patients experiencing painful TKA.
  • It facilitates the identification of both obvious and subtle causes of TKA failure.
  • The systematic approach aids in determining the appropriate course of action, including revision surgery.

Conclusions:

  • A structured diagnostic algorithm is essential for effectively evaluating patients with painful total knee arthroplasty.
  • Understanding the specific failure mechanism is crucial before considering revision surgery.
  • This algorithm provides a practical framework to manage unexplained painful TKA cases.