In rotator cuff surgery, the surgeon reattaches torn tendon to bone. That repair needs weeks of protection before it can handle your own muscles pulling on it, and months before it can handle real load. Good rehab respects both timelines. This page explains what rehab looks like at Lake Erie Physical Therapy in Buffalo, including the PT exercises for rotator cuff injury and repair that fit each phase, and why the order matters.
The sling period
OrthoInfo notes that most people use a sling and avoid using the arm for the first 4 to 6 weeks, and that how long you need it depends on the severity of the injury, your tissue quality and the type of repair. MedlinePlus advises wearing the sling or immobilizer at all times unless your surgeon says you don’t have to. During this phase, therapy protects the repair while fighting stiffness. Your therapist moves the shoulder for you (passive motion) within the limits your surgeon sets, and you keep the elbow, wrist and hand moving as allowed.
PT exercises for rotator cuff injury and repair, phase by phase
Phase 1: protect and move gently
Passive range of motion, gentle shoulder blade and posture work, and pain and swelling control. OrthoInfo notes that passive exercise usually begins within the first 4 to 6 weeks.
Phase 2: active motion
OrthoInfo notes that after 4 to 6 weeks, patients usually progress to active exercises, moving the arm with their own muscles. We work on reaching forward, overhead and behind your back, and on shoulder blade control, without forcing painful end ranges.
Phase 3: strength
OrthoInfo notes that strengthening typically starts at 8 to 12 weeks. Bands, light weights and progressive loading of the rotator cuff and the muscles around the shoulder blade build the endurance you need for daily use.
Phase 4: work, sport and overhead activity
ChoosePT notes that a modified return to sports, heavy lifting or other strenuous activity may not begin until four months after surgery, and that a full return may take nine months to a year. Throwing athletes follow a gradual return-to-throwing plan; see sports physical therapy.
Across phases, your therapist may use manual therapy to help restore motion, within your surgeon’s guidelines.
Why the order matters
Loading too early can stress a repair that hasn’t healed, and waiting too long invites stiffness. OrthoInfo notes that early rehabilitation lessens the likelihood of permanent stiffness, and that poor outcomes are more likely when patients don’t fully participate in rehab or don’t follow their doctor’s activity restrictions. Overall, OrthoInfo says to expect a complete recovery to take several months.
Other shoulder surgeries, and shoulders without surgery
Rehab after a labral repair or another shoulder procedure follows the same rule: your surgeon’s protocol sets the pace, so bring it to your first visit. Our post-surgical rehab page explains how we coordinate with surgeons. If your shoulder hurts and you haven’t had surgery, see shoulder pain physical therapy.
Call your surgeon’s office if
Physical therapy does not replace your surgeon’s follow-up care. MedlinePlus advises contacting your surgeon or nurse after shoulder surgery for:
- Bleeding that soaks through the dressing and doesn’t stop with pressure
- Pain that doesn’t go away when you take your pain medicine
- Swelling in your arm
- Numbness or tingling in your fingers or hand, or fingers that look darker or feel cool
- Redness, pain, swelling or a yellowish discharge from a wound
- A temperature higher than 101°F (38.3°C)
OrthoInfo also advises talking to your doctor if your pain does not improve within a few weeks after surgery.
What to bring
Bring your surgeon’s prescription and protocol, the operative report, your insurance card and a medication list. Wear a loose or sleeveless shirt that’s easy to manage around the sling. Coverage varies by plan, so please confirm with us before your first visit.
Out of surgery, or about to be? Call (716) 332-4838 or request an appointment, and bring your protocol to the first visit.
Sources
- Rotator Cuff Tears: Surgical Treatment Options (OrthoInfo, American Academy of Orthopaedic Surgeons)
- Shoulder surgery, discharge (MedlinePlus)
- Physical Therapy Guide to Rotator Cuff Tear (ChoosePT)

