Shoulder Impingement (Bursitis) In Singapore

Shoulder pain that worsens when you lift your arm or reach overhead, typically between 60 & 120 degrees of elevation, can significantly impact your daily activities and quality of life. Shoulder impingement, often accompanied by bursitis, is one of the most common causes of shoulder discomfort in Singapore. This condition occurs when the tendons or bursa in your shoulder become compressed or irritated, leading to pain, inflammation, and restricted movement. Understanding this condition and available treatment options can help you make informed decisions about your shoulder health and return to pain-free movement.

Dr Zackary Chua

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

MBBS (Aus)MMed (SG)MRCS (Glasgow)FRCSEd (Orth)

Causes & Risks Symptoms When to see a Doctor Diagnosis Treatment Complications Prevention FAQ Conclusion

What is Shoulder Impingement?

Shoulder impingement syndrome occurs when the rotator cuff tendons and subacromial bursa (a fluid-filled sac that cushions the shoulder) become compressed between the bones of the shoulder joint. This compression happens primarily in the subacromial space – the area between the acromion (top of the shoulder blade) and the humeral head (top of the arm bone). When this space narrows, the soft tissues become pinched during arm movements, particularly when lifting the arm above shoulder level.

Causes

The primary causes of shoulder impingement include:

Anatomical variations: Some people naturally have a curved or hooked acromion that reduces the subacromial space
Bone spurs: Age-related changes can cause bony growths that narrow the space
Thickened ligaments: The coracoacromial ligament may thicken and compress underlying structures
Rotator cuff weakness: Weak muscles fail to stabilise the shoulder properly during movement
Poor posture: Forward shoulder positioning reduces the subacromial space
Repetitive overhead activities: Continuous arm elevation causes mechanical irritation

Risk Factors

Several factors increase your likelihood of developing shoulder impingement:

Age: Most common in adults over 40 years old
Occupation: Jobs requiring overhead work (painters, electricians, warehouse workers)
Sports participation: Swimming, tennis, volleyball, and baseball players
Previous shoulder injuries: Past trauma can alter shoulder mechanics
Muscle imbalances: Weak rotator cuff with tight chest muscles
Poor workplace ergonomics: Improper desk setup requiring frequent reaching

Signs & Symptoms

Mild Symptoms

Dull ache in the shoulder at rest
Mild discomfort when reaching overhead
Slight stiffness in the morning
Minor weakness when lifting light objects
Occasional catching sensation during arm movement

Moderate Symptoms

Sharp pain when lifting arm to shoulder height
Night pain that disrupts sleep
Difficulty reaching behind the back
Noticeable weakness in the affected arm
Pain radiating down the outer arm
Increased discomfort after activity

Severe Symptoms

Constant shoulder pain even at rest
Severe night pain preventing sleep
Inability to lift arm above shoulder level
Significant muscle weakness
Complete loss of overhead function
Pain unresponsive to basic pain relievers

Symptoms typically develop gradually over weeks to months. The hallmark sign is a painful arc of movement between 60-120 degrees of arm elevation, where the impingement is most pronounced.

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When to See a Doctor

You should seek medical attention if you experience persistent shoulder pain lasting more than two weeks despite rest and over-the-counter pain relievers. Immediate consultation is recommended if you have severe pain preventing sleep, sudden inability to move your shoulder, or weakness affecting daily activities. Red flag symptoms requiring urgent attention include fever with shoulder pain, severe swelling, or pain following a traumatic injury.

During your first consultation, our orthopaedic surgeon will perform a comprehensive shoulder examination, including specific impingement tests. You can expect questions about your symptoms, activity levels, and medical history. The examination typically takes 30-45 minutes and may include imaging recommendations to confirm the diagnosis and rule out other conditions.

Diagnosis & Testing Methods

Accurate diagnosis of shoulder impingement typicaly involves both clinical examination and imaging studies. An orthopaedic surgeon may perform specific physical tests such as the Neer test, Hawkins-Kennedy test, and painful arc test, to reproduce impingement symptoms. Range of motion assessment and strength assessments help determine the severity of the condition.

X-rays are often the first imaging study, useful for evaluating bone structure and identifying features such as bone spurs or anatomical variations. Although X-rays don’t show soft tissues, they can reveal indirect signs of impingement such as calcifications or a narrowed subacromial space. Ultrasound provides real-time visualisation of the rotator cuff tendons and bursa, allowing assessment of inflammation and tears. For complex cases or when surgery is being considered, MRI scans can offer detailed images of all shoulder structures, including bursal inflammation and any associated rotator cuff conditions.

Treatment Options Overview

Conservative Management

The foundation of shoulder impingement treatment involves rest from aggravating activities and posture correction. This includes avoiding overhead movements temporarily while addressing underlying biomechanical issues that contribute to impingement.

Oral Medications

Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or naproxen help reduce pain and inflammation. These medications are typically prescribed for 2-4 weeks during the acute phase. For patients who cannot tolerate NSAIDs, alternative pain relievers may be recommended.

Physiotherapy

Structured physiotherapy is crucial for successful treatment. Your physiotherapist will implement a progressive programme including manual therapy to improve joint mobility, specific exercises to strengthen the rotator cuff and scapular stabilisers, and posture correction techniques. Treatment typically involves 2-3 sessions weekly for 6-12 weeks.

Injection Therapies

Corticosteroid injections into the subacromial space can provide significant pain relief and reduce inflammation. These injections are particularly effective when combined with physiotherapy. Most patients experience improvement within 48-72 hours, with effects lasting several weeks to months. For patients seeking alternatives to steroids, hyaluronic acid injections may help improve joint lubrication and reduce friction.

Platelet-Rich Plasma (PRP) Therapy

PRP involves injecting concentrated platelets from your own blood into the affected area to promote healing. This treatment may benefit patients with chronic bursitis or partial rotator cuff tears associated with impingement. The procedure requires 2-3 injections spaced several weeks apart.

Shockwave Therapy

Extracorporeal shockwave therapy uses acoustic waves to stimulate healing and reduce pain. This non-invasive treatment is particularly effective for calcific tendinitis associated with impingement. Sessions last 15-20 minutes and are typically performed weekly for 3-6 weeks.

Arthroscopic Surgery

When conservative treatments fail after 3-6 months, arthroscopic subacromial decompression may be recommended. This minimally invasive procedure involves removing bone spurs, releasing thickened ligaments, and creating more space for the rotator cuff tendons. The surgery is performed through small incisions using a camera and specialised instruments. Recovery typically takes 3-4 months with physiotherapy.

Open Surgery

In rare cases with significant anatomical abnormalities or failed arthroscopic surgery, open acromioplasty may be necessary. This involves a larger incision to directly visualise and reshape the acromion. While recovery is longer than arthroscopic surgery, outcomes are generally good for appropriately selected patients.

Every patient’s condition is unique.

Our Senior Consultant Orthopaedic Surgeon will assess your specific situation and recommend the most suitable treatment approach for you.

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Complications if Left Untreated

Untreated shoulder impingement can lead to progressive deterioration of shoulder function. Chronic inflammation may cause rotator cuff tendinopathy, where the tendons become weakened and prone to tearing. Studies show that up to 40% of untreated impingement cases develop rotator cuff tears within 5 years.

Persistent impingement can also lead to adhesive capsulitis (frozen shoulder), where the shoulder joint capsule becomes stiff and painful. This complication significantly limits range of motion and can take 1-2 years to resolve. Chronic bursitis may develop, causing persistent swelling and pain that becomes increasingly difficult to treat. Long-term compensation patterns often lead to neck pain, opposite shoulder problems, and reduced quality of life.

Prevention

Preventing shoulder impingement involves maintaining good shoulder health through regular exercise and proper body mechanics. Strengthen your rotator cuff muscles with resistance band exercises performed 3-4 times weekly. Focus on exercises that target the external rotators and scapular stabilisers.

Maintain good posture by keeping your shoulders back and down, especially during desk work. Set up your workstation ergonomically to minimise reaching and overhead activities. Take regular breaks to stretch if your work involves repetitive arm movements. For athletes, proper warm-up before sports and gradual progression in training intensity help prevent overuse injuries. Swimming technique refinement and stroke modification can significantly reduce impingement risk in swimmers.

Shoulder Impingement (Bursitis)

Frequently Asked Questions

How long does shoulder impingement take to heal?

Recovery time varies depending on severity and treatment approach. With appropriate conservative treatment including physiotherapy, most patients experience significant improvement within 6-12 weeks. Complete resolution may take 3-6 months. Surgical cases typically require 3-4 months of rehabilitation before returning to full activities. Consistency with exercises and avoiding aggravating activities are crucial for optimal recovery.

Can shoulder impingement heal on its own without treatment?

While mild cases may improve with rest, complete resolution without treatment is uncommon. Without addressing underlying causes such as muscle imbalances or poor posture, symptoms often return or worsen. Professional assessment ensures accurate diagnosis and prevents progression to more serious conditions like rotator cuff tears. Early treatment typically leads to faster recovery and better long-term outcomes.

What activities should I avoid with shoulder impingement?

During active symptoms, avoid repetitive overhead activities such as painting, throwing, or overhead lifting. Sleeping on the affected side often worsens pain and should be avoided. Swimming strokes like freestyle and butterfly may aggravate symptoms. Complete immobilisation is not recommended as it can lead to stiffness. Your orthopaedic surgeon and physiotherapist will guide you on activity modifications specific to your condition and recovery stage.

Is surgery always necessary for shoulder impingement?

Surgery is not always necessary and is typically reserved for cases that don’t respond to conservative treatment after 3-6 months. Studies show that 60-70% of patients improve significantly with non-surgical treatment, including physiotherapy and injections. Surgery is considered when there are structural abnormalities like large bone spurs, or when conservative treatment fails to provide adequate relief. Your orthopaedic surgeon will discuss surgical options only after exhausting appropriate conservative measures.

Can shoulder impingement come back after treatment?

Recurrence is possible, particularly if underlying causes aren’t addressed. Factors like poor posture, muscle imbalances, or returning to activities too quickly increase recurrence risk. Following a complete rehabilitation programme and maintaining shoulder exercises reduces this risk significantly. Long-term success requires ongoing attention to shoulder mechanics and regular strengthening exercises. Most patients who complete proper treatment and maintain preventive measures experience lasting relief.

What’s the difference between shoulder impingement and frozen shoulder?

While both cause shoulder pain and limited movement, they are distinct conditions. Shoulder impingement involves compression of soft tissues, causing pain primarily with overhead movements. Frozen shoulder (adhesive capsulitis) involves inflammation and thickening of the joint capsule, causing severe stiffness in all directions. Impingement can lead to frozen shoulder if untreated, and it will require different treatment approaches. Accurate diagnosis by an orthopaedic surgeon ensures appropriate treatment selection.

Conclusion

Shoulder impingement with bursitis is a treatable condition that responds well to appropriate intervention. Early diagnosis and treatment prevent progression to more serious complications and help you return to pain-free shoulder function. Whether through conservative measures like physiotherapy and injections or surgical intervention, when necessary, effective treatments are available to address your specific needs. The key to successful outcomes lies in accurate diagnosis, personalised treatment planning, and commitment to rehabilitation.

Take the First Step Towards Better Health

Living with shoulder impingement can be challenging, but you don’t have to face it alone. Our Senior Consultant Orthopaedic Surgeon has experience diagnosing and treating shoulder impingement using current evidence-based approaches.

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Dr Zackary Chua (蔡克祥医生)

Senior Consultant Orthopaedic Surgeon (Adult & Paeds)

MBBS (AUS)|MMed (Singapore)|MRCS (Glasgow)|FRCSEd (Orth)

A senior consultant orthopaedic surgeon with dual specialisations in Foot & Ankle Surgery and Paediatric Orthopaedics. Backed by his extensive years of training and experience, Dr Chua brings the necessary knowledge and skills to ensure a smooth recovery journey.

Rooted firmly by two fundamental philosophies: “When one’s feet hurt, one hurts all over” and “Children are not little adults”, Dr Chua’s approach to patient care reflects his compassionate care for adults and children.

Singhealth Quality Excellence Award – Silver (2011)
Service From the Heart Award (2021)
Singapore Health Quality Service Award – Gold (2023)
NUS Medicine Dean’s Award for Teaching Excellence (2023)

His active participation in the medical community extends to mentoring, research supervision, and contributions to key professional forums and symposiums, both locally and internationally.