Researchers retrospectively identified 92 consecutive patients who underwent shoulder arthroscopy for suspected rotator cuff tears and had undergone MR orthography three months prior to the procedure. Investigators identified the myotendinous junction, subscapularis tendon and muscle length.
Here are four points:
1. Results showed 43 patients had an intact subscapularis tendon, 21 patients had tendinopathy with no tendon disinsertion and 28 patients had partial disinsertion of the tendon.
2. The partial tear cases had a mean subscapularis length and mean muscle length of 53 mm and 95 mm, respectively.
3. The intact tendon group had a mean subscapularis length of 40 mm and a mean muscle length of 105 mm.
4. The tendinopathy cases had a mean subscapularis length of 45 mm and a mean muscle length of 94 mm.
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