Ace Physiotherapy and Sports in Singapore
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+65 81535374 -
ACE PHYSIO SPORTS
East gate Building, 46 East Coast Road
#08-03 Singapore 428766 -
Opening Hours
Mon to Fri: 08:00am - 8:00pm -
Opening Hours
Sat: 08:00am - 4:00pm
Sunday (By prior appointment)
Quadrilateral Space Syndrome
What is quadrilateral space syndrome?
Quadrilateral space syndrome is a rare condition that occurs when both a nerve and an artery passing through the quadrilateral space in the shoulder become compressed. This compression can cause pain, particularly when the arm is moved outward (abduction) or rotated externally. Because its symptoms can resemble other shoulder issues, it is frequently misdiagnosed.
What causes quadrilateral space syndrome?
The quadrilateral space is a small anatomical area located on the outer side of the shoulder at the top of the arm, through which the axillary nerve and the posterior humeral circumflex artery pass. Quadrilateral space syndrome develops when these structures become compressed, which can result from:
- Overuse of the shoulder
- Muscles tightening during abduction and external rotation
- A cyst formed in relation to a labral tear
- A tumour – this is rare
- A haematoma – this is rare
What are the symptoms of quadrilateral space syndrome?
Quadrilateral space syndrome may lead to symptoms such as pain at the back of the shoulder, especially during arm abduction or external rotation, weakness in the shoulder muscles, numbness or tingling in the upper arm, and in some cases, reduced blood flow to the arm. These symptoms can vary in severity and may worsen with repetitive overhead or outward arm movements.
- Dull ache in the shoulder
- Pain on abduction of the arm, especially when resisted
- Pain on external rotation of the arm, especially when resisted
- Tender to touch
- Shoulder weakness
- Pins and needles
- Numbness
Physiotherapy for Quadrilateral Space Syndrome
Physiotherapy is often highly effective in managing quadrilateral space syndrome, with treatment focusing on rehabilitation and restoring normal shoulder function. A tailored programme may include exercises to strengthen the rotator cuff and surrounding muscles, stretches to improve flexibility, posture correction to reduce nerve and artery compression, and activity modifications to prevent symptom flare-ups. The aim is to relieve pain, restore movement, and enable a safe return to daily and sporting activities.
- Cold/heat therapy
- Electrotherapy
- Range of movement exercises
- Stretching exercises
- Strengthening exercises
- Guidance on returning to functional
- activities
Can quadrilateral space syndrome cause any long-term effects?
In most cases, with prompt and effective treatment, full recovery from quadrilateral space syndrome is achievable. However, in severe or persistent cases, surgery may be necessary to relieve the compression. Physiotherapy plays a crucial role in post-surgical rehabilitation, helping to restore strength, mobility, and function. With appropriate care, most individuals can expect to return to normal activities without lasting effects.
To arrange an appointment, please call +65 81535374 or visit acephysiosports.com.
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