What this shoulder tendon problem means
In my practice, I often see patients who say they have “shoulder pain” without realizing that the real problem is a rotator cuff tendon injury. A subscapularis tear is one of those injuries. The subscapularis is a key rotator cuff muscle at the front of the shoulder. It helps turn the arm inward and helps keep the shoulder stable.
When this tendon is torn, patients may notice pain, weakness, and difficulty with normal activities such as reaching behind the back, lifting from the front, pushing a door, or controlling the arm during work. In Bangladesh, I commonly see this after a fall, a shoulder dislocation, a lifting injury, or gradual wear over time.
If the tear happens along with other shoulder problems, the symptoms can be more complex. Some patients also have biceps tendon disease, instability, or other rotator cuff tears at the same time.
Why the subscapularis matters
The rotator cuff is a group of muscles and tendons that keep the shoulder moving smoothly and safely. The subscapularis is the largest of those tendons and plays an important role in strength and shoulder stability.
When it is damaged, the shoulder may still move, but it may not move well. Patients sometimes think the problem is only pain. Often, the more important issue is loss of strength, especially during inward rotation and front-of-body activity.
Common symptoms
The symptoms can vary depending on whether the tear is partial or complete, recent or long-standing, and whether other shoulder structures are injured too.
Common symptoms include:
- pain at the front of the shoulder
- weakness when lifting or rotating the arm inward
- difficulty reaching behind the back
- trouble pushing, pulling, or carrying
- pain at night, especially after injury
- clicking, catching, or a feeling that the shoulder is not trusted
- weakness after returning to manual work or sport
Some patients notice that simple tasks become difficult, such as tucking in a shirt, fastening a bra, bathing, or lifting household items. That loss of function is often what brings the patient to care.
Pain and weakness do not always match
One important point I want patients to understand is that pain can improve before strength returns. A shoulder may feel a little better after rest or medicine, but the tendon can still be weak or torn. That is why I do not rely on pain alone when assessing a shoulder injury.
How subscapularis tears happen
A subscapularis tear may happen in different ways.
Sudden injury
In younger or active patients, a tear may follow:
- a fall on the arm or shoulder
- forced twisting of the arm
- a sports injury
- a shoulder dislocation
Gradual wear
In older adults, the tendon may weaken over time because of degeneration, repeated strain, poor tendon quality, or other rotator cuff disease. In such cases, the tear may begin as a partial injury and gradually become more significant.
The treatment plan should match the actual tear pattern, not just the name of the diagnosis. A small partial tear and a large full-thickness tear are not the same problem.
How I evaluate a suspected tear
I start with a careful history and examination. I ask when the pain started, whether there was a clear injury, what movements are weak, whether there is night pain, and whether the patient has had any dislocation or previous shoulder problem.
During examination, I check:
- shoulder movement
- internal rotation strength
- tenderness at the front of the shoulder
- signs of associated biceps or rotator cuff injury
- stiffness or instability
I also think about the whole shoulder, not only one tendon. A subscapularis tear may occur with biceps tendon injury, other rotator cuff tears, or shoulder instability. That changes both treatment and recovery.
Imaging that can help
X-rays may be useful after trauma to look for fracture, joint alignment, or arthritis. MRI is often more helpful for the tendon itself because it can show whether the tear is partial or full, whether the tendon is retracted, and whether other soft tissue structures are involved. [1]
In some patients, ultrasound may also be useful, depending on the examiner’s skill and the clinical question. The most important point is that imaging should support the clinical examination, not replace it.
Can a subscapularis tear be treated without surgery?
Yes, some tears can be managed without surgery, especially when the tear is small, the weakness is limited, and the shoulder remains functional.
Non-surgical treatment may include:
- activity modification
- pain control when needed
- physiotherapy
- shoulder mobility work
- rotator cuff and scapular strengthening
- gradual return to activity
This approach can work well in selected patients, but it needs structure. Repeated pain medicine without a proper rehabilitation plan is usually not enough.
In Bangladesh, many patients delay treatment because they try to keep working through the pain. I understand that reality. Still, ignoring a function-limiting tear can make the shoulder harder to recover later.
When surgery may be needed
Surgical repair may be more appropriate when there is:
- a larger tear
- obvious weakness
- traumatic rupture
- loss of daily function
- failed non-surgical treatment
- associated biceps or other rotator cuff injury
