MRIにおいて negative を示した腱板断裂の2例

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We reported on two cases of rotator cuff tear in which the signal of the rotator cuff in T2 weighted MRI was not high on the first try, but turned to be high on the second try taken a few months later. (Case 1) A 27-year-old man with left shoulder pain after a fall in a soccer game, was seen in our clinic 7days after injury. No high signal area in the supraspinotus tendon in T2 weighted MRI was seen on the first try, but high signal area was seen on the second try taken two months later. A mini open cuff repair was undertaken and a 5mm x 5mm intratendinous tear communicating with the joint was found. (Case 2) A 68-year-old man with left shoulder pain after a fall had weakness in the supraspinatus. No high signal area in the supraspinotus tendon in T2 weighted MRI was seen on the first try, but turned to be high three months later. Open cuff repair was undertaken and 3cm x 4cm full thickness tear involving an intratendinous tear was found at the operation. Many authors have reported about the correlation between MRIs and the operative findings of a rotator cuff tear. However, there have been no reports concerning whether a false negative would change to a positive or stay negative. We reported two cases in which the MRI signal of rotator cuff changed within a few months without any new traumatic episodes and each case had an intratendinous tear. These cases indicate that an intratendinous tear occurs first, develops to a bursal side or articular side tear and advances to a full thickness tear. These findings suggest that MRIs should be taken several times for patients with continuous clinical symptoms and signs of a rotator cuff tear.
日本肩関節学会の論文
2002-01-01

MRIにおいて negative を示した腱板断裂の2例

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