What is macerated meniscus?
What is macerated meniscus?
Meniscal maceration is a finding sometimes used on MRI imaging to describe wasting away of the meniscus or cause to become soft or separated into constituent elements. It is often used with chronic degenerative conditions although some authors also propose this term in the setting of a tear (macerated tear) 2.
What causes a macerated meniscus?
The reason that the AHLM becomes macerated is because they are impinged between the lateral femoral condyle and the anterior edge of the lateral tibial eminence. The macerated tear is the most common tear pattern of AHLM, and is also closely associated with meniscus cyst.
What can mimic a medial meniscus tear?
Normal anatomic structures that can mimic a tear include the meniscal ligament, meniscofemoral ligaments, popliteomeniscal fascicles, and menisco- meniscal ligament. Anatomic variants and pitfalls that can mimic a tear include discoid meniscus, meniscal flounce, a meniscal ossicle, and chondrocalcinosis.
What is macerated in appearance?
Maceration occurs when skin is in contact with moisture for too long. Macerated skin looks lighter in color and wrinkly. It may feel soft, wet, or soggy to the touch. Skin maceration is often associated with improper wound care.
What is the meaning of maceration?
1 : to cause to waste away by or as if by excessive fasting. 2 : to cause to become soft or separated into constituent elements by or as if by steeping in fluid broadly : steep, soak. intransitive verb. : to soften and wear away especially as a result of being wetted or steeped.
Is a cortisone injection good for a meniscus tear?
In most cases, we inject cortisone into the joint. However, for meniscal tears, an injection into the joint will dilute the cortisone meaning it will have less of an effect on the tear. Some doctors are now injecting cortisone very close to the meniscal tear and getting good results.
How do you stop maceration?
To avoid or reduce maceration, hydrofibre or alginate dressings may be used to cover the peri-ulcer area generously and absorbent pads can then be applied as a secondary dressing to provide additional absorption.
How long does it take for maceration to go away?
For significant resolution, getting the shear strength of the skin back to somewhere even near full strength, I would suggest 24 hours would be a minimum. Remember, the damage of maceration can go all the way through the epidermis (Minematsu et al, 2011).
How do you treat maceration?
How is it treated?
- Occlusive dressings. These are nonabsorbent and wax-coated, making them both airtight and watertight.
- Hydrofiber dressings. These are sterile gauze pads and bandages that absorb extra moisture during the healing process.
How accurate is MR imaging for the diagnosis of meniscal tears?
With arthroscopy considered the standard of reference, MR imaging demonstrates high sensitivity (93% for the medial meniscus [MM] and 79% for the lateral meniscus [LM]) and specificity (88% for the MM and 96% for the LM) for detection of meniscal tears ( 3 ).
Where can I get an MRI of the meniscus in Wisconsin?
From the Department of Radiology and Orthopedics, University of Wisconsin Hospital and Clinics, 600 Highland Ave, E3/311, Madison, WI 53792. Address correspondence to H.G.R. (e-mail: [email protected] ). Magnetic resonance (MR) imaging is currently the modality of choice for detecting meniscal injuries and planning subsequent treatment.
What are the imaging protocols for the meniscus?
A thorough understanding of the imaging protocols, normal meniscal anatomy, surrounding anatomic structures, and anatomic variants and pitfalls is critical to ensure diagnostic accuracy and prevent unnecessary surgery. High-spatial-resolution imaging of the meniscus can be performed using fast spin-echo and three-dimensional MR imaging sequences.
Does intrasubstance hyperintensity of the meniscus become a meniscal tear?
However, unless the hyperintensity reaches the meniscal surface, it is more likely to be physiologic changes (mucoid or myxoid degeneration) (Figs. 7.7 and 7.8 ). There is no evidence to suggest that intrasubstance hyperintensity within the meniscus seen in young persons will develop into a meniscal tear at later life.
