I have read the following two terms in an MRI report (both points refer to the insertion of gluteus medius/minimus to greater trochanter of the femur):

  • mild degeneration of the muscular attachment of the left gluteus medius
  • mild tendinosis of the left gluteus minimus

Is muscular attachment (to a bone) synonymous to tendon? Or does the muscular attachment designate the muscle part that attaches to the tendon? Or something else?


1 Answer 1


The tendon and muscle attachment are not the same. In your example, both are affected, so they are described separately.

A muscle extends into a tendon and this into an enthesis - an actual attachment site where the muscle is attached to the bone (PubMed).

  • $\begingroup$ Thanks! Just to confirm, it means that muscular attachment = tendon + enthesis? $\endgroup$ Apr 30, 2019 at 7:53
  • 1
    $\begingroup$ No, the tendon is not really a part of the muscular attachment. $\endgroup$
    – Jan
    Apr 30, 2019 at 7:54
  • $\begingroup$ so muscular attachment = enthesis? $\endgroup$ Apr 30, 2019 at 7:54
  • 1
    $\begingroup$ Yes, that's it. It also applies for the sites where ligaments are attached to the bone. $\endgroup$
    – Jan
    Apr 30, 2019 at 7:55
  • $\begingroup$ Thanks for confirming! Good to know about ligaments. $\endgroup$ Apr 30, 2019 at 7:55

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