Knee pain: Ultrasound and MRI correlation

Abstract Background Knee pain incidence is increasing among the community which has different multiple pathologies. Magnetic Resonance Imaging (MRI) is considered the gold standard imaging modality in diagnosing knee soft tissue injury. Ultrasound (US) is another modality which can be used in diagnosing soft tissue injury. Aim of the Work is to detect the reliability of US in diagnosing cases with knee pain as compared to MRI. Patients and Methods A prospective study was conducted on 20 patients with knee pain. They were referred from the Orthopedic and/or Rheumatology Department to Radiology department at Ain Shams University hospitals for MRI and US examination of the knee.The age group were from 19 to 59 years. Results In this study, 20 patients were examined with majority being males (75%). US was tested against MRI for different soft tissue pathologies.including knee effusion, meniscal pathology (tear, degeneration and extrusion), medial collateral ligament sprain, lateral collateral ligament sprain and Baker’s cyst. There was good agreement between US and MRI in most of these pathologies. US showed an overall sensitivity of 61.7% and specificity of 92.7% with accuracy of 86.9%. The overall PPV and NPV were 66.1% and 91.3% respectively. Conclusion Ultrasound can be considered a reliable screening imaging modality in cases of knee pain.

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The Mechanism of Acute Ulnar Instability of the Metacarpophalangeal Joint of the Thumb

HAND ◽

10.1016/s0072-968x(80)80043-x ◽

1980 ◽

Vol os-12 (3) ◽

pp. 225-230 ◽

Cited By ~ 11

Author(s):

M. A. Smith

Keyword(s):

Soft Tissue ◽

Tissue Injury ◽

Proximal Phalanx ◽

Soft Tissue Injury ◽

Ulnar Collateral Ligament ◽

Metacarpophalangeal Joint ◽

Post Mortem ◽

Collateral Ligament ◽

Bony Fragment ◽

Operative Findings

Acute ulnar instability of the metacarpophalangeal joint of the thumb is divided into two distinct groups, according to the history, clinical, radiological and operative findings. In the first group it is a soft tissue injury, as a result of an unresisted abduction force to the thumb. In the second group, following a resisted abduction force, there is avulsion of a bony fragment from the base of the proximal phalanx, which is the site of common insertion of both the ulnar collateral ligament and the adductor pollicis. This is confirmed by post-mortem studies.

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Ultrasound of the Elbow

Musculoskeletal Imaging Volume 2 ◽

10.1093/med/9780190938178.003.0122 ◽

2019 ◽

pp. 355-359

Author(s):

Corrie M. Yablon

Keyword(s):

Soft Tissue ◽

Tissue Injury ◽

Imaging Modality ◽

Biceps Tendon ◽

Soft Tissue Injury ◽

Ulnar Collateral Ligament ◽

Joint Effusion ◽

Repetitive Motion ◽

Olecranon Bursitis ◽

Joint Effusions

Chapter 121 discusses US of the elbow, which is an important imaging modality for the evaluation of elbow pain, providing soft tissue resolution superior to MRI. Soft tissue injury of the elbow is usually caused by repetitive motion and chronic overuse. The most common indications for elbow US examination are joint effusion, tendon and ligament pathology, olecranon bursitis, and ulnar nerve entrapment. The distal biceps tendon, triceps tendon, and common extensor and common flexor tendons are easily evaluated with US. Dynamic evaluation can determine between partial- and full-thickness radial and ulnar collateral ligament tears. US easily identifies joint effusions and olecranon bursitis. Furthermore, US can be used to guide interventions about the elbow.

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Mechanical Properties of the Lateral Collateral Ligament: Effect of Cruciate Instability in the Rabbit

Journal of Biomechanical Engineering ◽

10.1115/1.3108432 ◽

1988 ◽

Vol 110 (3) ◽

pp. 208-212 ◽

Cited By ~ 14

Author(s):

P. A. Tozilli ◽

S. P. Arnoczky

Keyword(s):

Mechanical Response ◽

Tissue Injury ◽

Soft Tissue Injury ◽

Lateral Collateral Ligament ◽

Clinical Problem ◽

Biomechanical Properties ◽

Collateral Ligament ◽

Cross Sectional ◽

Ligament Failure ◽

Hexosamine Content

Concomitant soft tissue injury resulting from knee instability following cruciate rupture is a serious clinical problem. To study this injury mechanism, the biomechanical properties of the lateral collateral ligament were measured at 0, 4, 8, 12, and 16 weeks post-operatively in rabbits having the anterior and posterior cruciate ligaments sectioned. No significant changes were found in the ligament’s cross-sectional area, tensile mechanical response, or in its hexosamine content. The predominant mode of ligament failure was by bone avulsion at the insertion sites (78 percent) with 86 percent of paired limbs failing in a similar manner.

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