home *** CD-ROM | disk | FTP | other *** search
- $Unique_ID{BRK01445}
- $Pretitle{}
- $Title{Why Were Two Kinds of X-rays Used to Diagnose a Torn Cartilage?}
- $Subject{knee mri test special procedures procedure laboratory lab tests
- x-rays cartilage torn x-rayed magnets magnetic resonance imaging forces
- picture hydrogen atoms water ligaments tendons fibrocartilage bone
- arthroscopic x-ray x ray atom ligament tendon bones}
- $Volume{P-17}
- $Log{
- Arthroscopy: Knee I*0001801.scf
- Arthroscopy: Knee II*0001802.scf
- Muscles and Tendons of the Knee*0006201.scf
- Anatomy of the Knee Ligaments*0015501.scf}
-
- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
-
-
- Why Were Two Kinds of X-rays Used to Diagnose a Torn Cartilage?
-
-
- ------------------------------------------------------------------------------
-
- QUESTION: A serious fall left me with a badly swollen knee that was diagnosed
- as torn cartilage. I first was X-rayed at my own doctor's office but was then
- referred to a center for a special MRI procedure. You should have seen the
- bill. It all ended up with surgery anyway, so why was I put to the expense of
- two kinds of X-rays, when the doctor knew from the beginning just what the
- problem was? Perhaps you can explain this one.
-
- ------------------------------------------------------------------------------
-
- ANSWER: The answer is a bit more complicated than you would imagine at first
- but I can assure you that the process of diagnosis in your case was "by the
- book".
- To start with an MRI is not another type of x-ray, but a process that
- uses high power magnets to generate a response in the atoms particularly
- hydrogen) that are part of the structure of the tissue. MRI stands for
- "Magnetic Resonance Imaging". Certain atoms send back signals when exposed to
- magnetic forces that can be detected and used to construct a picture of the
- area. Since hydrogen atoms are part of every molecule of water, the soft
- tissues, that contain much water, are best seen. In a knee, they are found in
- the ligaments, tendons, and fibrocartilage. However, bone is poorly
- visualized, and so high quality x-ray films still remain the primary tool of
- diagnosis in joint injury. With both types of images available, a surgeon has
- a pretty good idea of the damage that has occurred and can plan the surgery
- accordingly.
- Although arthroscopic surgery is now well advanced, and can provide a
- direct look at the damage, it is considered both wise and necessary to take a
- "look before you leap" approach that is afforded by the new high tech imaging
- capabilities. That permits planning the surgery as to the best approach, and
- what techniques are most successful in repairing the damage. This now allows
- the patient to return home the same day of the operation and greatly reduces
- the time of recovery. The bills are indeed high, but the results now obtained
- save precious time and greatly reduce pain, considerations of some importance
- if you are the patient.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-
-