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Related Experiment Video

Updated: Jul 8, 2026

Knee Arthrocentesis in Adults
04:41

Knee Arthrocentesis in Adults

Published on: February 25, 2022

How effective is a saline arthrogram for wounds around the knee?

Paul Tornetta1, Matthew T Boes, Anthony A Schepsis

  • 1Boston University School of Medicine, Boston, MA, USA. ptornetta@pol.net

Clinical Orthopaedics and Related Research
|January 16, 2008
PubMed
Summary

The saline arthrogram shows low sensitivity in detecting small traumatic knee arthrotomies, potentially delaying diagnosis of septic arthritis. This diagnostic test requires further evaluation for clinical use in traumatic knee injuries.

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Area of Science:

  • Orthopedic Surgery
  • Diagnostic Imaging
  • Trauma Care

Background:

  • Traumatic arthrotomies are serious knee injuries that can lead to septic arthritis.
  • Early diagnosis and treatment are crucial for managing traumatic arthrotomies.
  • The saline arthrogram is a common diagnostic tool used to identify intra-articular knee wounds.

Purpose of the Study:

  • To determine the sensitivity of the saline arthrogram in identifying known traumatic arthrotomies of the knee.
  • To evaluate the effectiveness of both static and dynamic saline arthrogram techniques.

Main Methods:

  • A diagnostic study (Level I) was conducted on 78 patients (80 knees) undergoing elective arthroscopic procedures.
  • Known intra-articular wounds (66 infrapatellar, 14 suprapatellar, average 7.5 mm length) were assessed.

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Last Updated: Jul 8, 2026

Knee Arthrocentesis in Adults
04:41

Knee Arthrocentesis in Adults

Published on: February 25, 2022

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

  • Saline arthrogram performed with 60 mL normal saline, observing for leakage during static and dynamic (range of motion) phases.

    • Main Results:

    • The static saline arthrogram demonstrated a sensitivity of 36% (22/80 knees).
    • Including passive range of motion (dynamic test) increased sensitivity to 43% (30/80 knees).
    • The study found low sensitivity for detecting small, known traumatic knee arthrotomy wounds.

    Conclusions:

    • The saline arthrogram exhibits low sensitivity for detecting small traumatic arthrotomy wounds in the knee.
    • This finding suggests potential limitations in using saline arthrograms for definitive diagnosis of traumatic knee arthrotomies.
    • Further research may be needed to improve diagnostic accuracy for these injuries.