Understanding shoulder structure, rotator cuff tear diagnosis and what happens when things go wrong.
If you’re experiencing shoulder pain or worrying about a possible rotator cuff tear, you can book an appointment with Dr Susan Alexander for a clear diagnosis and tailored treatment plan.
In brief
- The rotator cuff is a group of four shoulder muscles and their tendons that surround and stabilise the shoulder joint.
- Tears can affect one or several tendons, from partial-thickness tear to complete or full-thickness ruptures.
- The supraspinatus tendon is the most commonly torn rotator cuff tendon.
- Dr Susan Alexander diagnoses rotator cuff tears using clinical assessment and imaging, including MRI and ultrasound scans..
- Treatment ranges from physiotherapy and rotator cuff exercises to arthroscopic surgery for more advanced tears.
Rotator Cuff Anatomy: Understanding the Shoulder Muscles Name by Name
The rotator cuff consists of four key shoulder muscles, the supraspinatus, infraspinatus, teres minor and subscapularis, and their corresponding tendons. These structures surround the shoulder socket and help stabilise the ball-and-socket joint formed by the head of the humerus (arm bone), scapula (shoulder blade) and clavicle (collar bone).
This intricate group of muscles allows the arm and shoulder to move freely in multiple directions, from lifting up overhead, reaching up behind your back, rotating out to the side and also reaching forwards. Because the shoulder is the most mobile joint in the body, these muscles and tendons must work together to keep the joint stable and well aligned.
Common Injuries of the Rotator Cuff and How They Occur
The rotator cuff is vulnerable to both common injuries and degenerative (wear and tear) changes. Problems may occur suddenly after trauma (such as falling onto an outstretched arm) or gradually due to repetitive strain, ageing or sports involving repeated overhead motion.
Alongside tendon tears, patients may experience:
- Bursitis, commonly called Impingement syndrome
- Rotator cuff tendinopathy or tendinitis
- Rotator cuff / tendinosis
- Other injuries affecting surrounding structures
To learn more about symptoms and related shoulder conditions, view the Rotator Cuff Tear Symptoms and Types blog article.
Rotator Cuff Tear Diagnosis: Partial, Full-Thickness and Complete Rupture
A rotator cuff tear can involve just one tendon or multiple tendons, and the extent of damage varies widely.
Under Dr Susan Alexander’s assessment, tears may be classified as:
Partial-Thickness Tears
These involve only part of the tendon’s depth and cause pain but usually preserve some strength.
Full-Thickness Tears
A complete top-to-bottom hole through the tendon, leading to pain and functional weakness.
Complete Ruptures
When the tendon tears all the way through and from side to side. These are more likely to require surgical treatment.
Massive Cuff Tears
When all four rotator cuff tendons are torn and retracted by more than 5 cm, the injury is categorised as massive. These tears severely impair shoulder function.
Tear in Supraspinatus: The Most Common Pattern
The supraspinatus tendon is one of the main muscles responsible for lifting the arm away from the body, and it is the most commonly torn part of the cuff.
Read more about this by visiting the Rotator Cuff Tear Treatment and Recovery blog article.
How Rotator Cuff Tears Are Diagnosed
Accurate rotator cuff tear diagnosis requires a thorough physical examination, analysis of your symptoms, and understanding of how the injury occurred.
During your consultation, Dr Susan Alexander will assess:
- Movement and mobility
- Strength of individual cuff muscles
- Pain location
- Functional impact on the affected arm
If imaging is needed, Dr Alexander may arrange ultrasound or MRI for detailed information about the tendon structure and severity of injury.
For more information or to book an appointment, contact Dr Susan here.
Pain Management and Non-Surgical Treatment Options
Many rotator cuff problems improve through structured pain management and rehabilitation without requiring an operation. Your treatment plan may include:
- Modified activity
- Anti-inflammatory approaches
- Guided physiotherapy and physical therapy
- Targeted rotator cuff exercises
- Posture and movement retraining
A physical therapist or specialist physiotherapist will guide your recovery, helping restore strength and control to the arm and shoulder.
When Is Surgical Treatment Recommended?
Rotator cuff surgery may be appropriate if symptoms persist despite conservative measures or if imaging shows a significant tear. Surgery is always the last option, as Dr Alexander understands that most people prefer to avoid this if possible.
Dr Alexander uses modern shoulder arthroscopy techniques to repair damaged muscles and tendons, restoring the position and function of the rotator cuff tendons.
Learn more about surgical options, including type of surgery, recovery expectations and outcomes, on the Shoulder Surgery page.
Factors influencing the decision for surgery include:
- Tear size
- Tendon tissue quality
- Age and activity level
- Associated conditions such as arthritis, bursitis or impingement
Exercises and Rehabilitation After a Rotator Cuff Tear
Rehabilitation plays a vital role in restoring shoulder strength and preventing further injuries. A tailored programme of shoulder cuff rehab exercises helps:
- Build resilience in the rotator cuff muscles
- Improve control around the scapula
- Reduce stiffness and inflammation
- Restore functional movement
For exercise guidance and progressive rehab planning, visit the Rotator Cuff Surgery: What to Expect blog article.
Looking After Your Shoulder for the Long Term
Protecting your shoulder health requires a deep understanding of rotator cuff anatomy, recognising symptoms early and seeking appropriate assessment when shoulder pain persists. With expert guidance from Dr Susan Alexander, most patients achieve meaningful improvement in function and comfort, whether through rehabilitation or surgical repair.
Ready for Clarity About Your Shoulder Pain?
Persistent shoulder pain or suspected rotator cuff injury shouldn’t be ignored. Book an appointment with Dr Susan Alexander to receive an accurate diagnosis, personalised advice and a clear, evidence-based treatment plan.
