Biceps Muscle Anatomy
Simple Description
Common Name: Biceps (Popeye muscle)
Location on the Body: The biceps are the muscles
in front of your arms.
Strong, cord-like structures called tendons connect one end of
the biceps muscle to the shoulder in two places. At the other end
of the muscle, tendons connect the biceps muscle to the smaller
bone (radius) in the lower arm.
Motion Performed: When you bend your arm to pick
something up, you use your biceps. They help keep the upper arm
bone (humerus) in the shoulder socket. It also helps speed up and
slow downd the arms during overhead movement in activities like
tennis, pitching or lifting weights.
How do biceps injuries occur?
Age, or inactivity can weaken a muscle which may lead to injury
due to the decreased ability to endure repetitive motions and
sudden loads. The well conditioned individual, however, is not
immune from biceps muscle injuries as over-training or
over-activity can also harm an otherwise healthy muscle. Because
of its location, a direct blow to the front of the shoulder can
also cause injury. The biceps muscle can also be injured at its
attachment site on top of the glenoid. This usually involves an
avulsion, where the tendon is pulled off the bone and rendered
unstable.
What does surgery involve?
Complete tears of the biceps muscles require surgery to reattach
the muscle to the bone. This is done by arthroscopically (Using
fiber optic technology and miniature instruments inserted through
a small incision) removing the torn tendon stump from inside the
shoulder joint and then, through a small skin incision, attaching
the remaining muscle/tendon to the bone in the upper arm
(humerus). If the biceps muscle/tendon is completely rupture,
causing the muscle to bulge in the upper arm, it can be
arthroscopically reattached using miniature screws and sutures,
only if the distal portion remains near the top of the shoulder.
What is the usual course after surgery?
A simple sling is all that is needed for the first few weeks
after surgery. Immediate use of the hand is encouraged, but only
for very light objects. Range of motion exercises can begin as
early as two weeks after surgery. Four to six weeks of healing is
required before a gradual return to moderate or heavy lifting.
Desk work and light-duty can usually be resumed within the first
week or two. Return to forceful biceps activity is often
restricted for two to six months, depending on the severity of
the injury.
Credit: 24hourfitness.com