Piriformis Syndrome

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Overview

Piriformis syndrome is a neuromuscular condition in which the piriformis muscle, located deep in the buttock, irritates or compresses the sciatic nerve, causing buttock pain and sciatica-like symptoms radiating down the leg. It is a commonly missed diagnosis that can mimic lumbar disc-related sciatica. At DR+, our GPs with specialised training in pain management provide a comprehensive assessment to identify piriformis syndrome and its underlying causes, enabling them to develop a personalised, non-surgical treatment plan tailored to each patient’s condition.

What is Piriformis Syndrome?

Piriformis Syndrome is a neuromuscular disorder characterised by pain, numbness, or tingling in the buttock and along the path of the sciatic nerve descending down the back of the thigh and into the leg.

It occurs when the piriformis muscle, a small muscle located in the buttock region, compresses or irritates the sciatic nerve. This muscle extends from the lower spine to the upper surface of each femur (thighbone) and is necessary for movement in the lower body.

What Are the Symptoms of Piriformis Syndrome? 

The main symptom of Piriformis Syndrome is a sensation of pain felt in the buttock. This is often described as aching or burning, localised in the buttock area. It typically affects one side of the body and can vary in intensity, ranging from a mild ache to a sharp, burning sensation.

Other symptoms of Piriformis Syndrome may include:

  • Lower Body Pain: Pain from the buttock area can extend down the thigh and along the leg, following the path of the sciatic nerve. This can cause weakness in the legs, thighs and calves.
  • Numbness or Tingling: Individuals may experience sensations of numbness or tingling in the affected buttock, thigh, and leg areas.
  • Aggravation by Specific Activities: Symptoms typically worsen during activities involving the hip, such as prolonged sitting, walking, climbing stairs, or twisting movements.
  • Challenges in Sustained Sitting: It could be difficult to sit for extended periods of time, due to pain and weakness. Standing up could also trigger pain in the leg.

While the symptoms are similar to those of sciatica, Piriformis Syndrome is due to the compression of the sciatic nerve by the piriformis muscle, not broader spinal issues. Consult our doctor for a diagnosis of your condition, to help differentiate between the two conditions for effective treatment and recovery.

When to Seek Urgent Medical Attention 

Seek assessment if buttock and leg pain is accompanied by significant leg weakness, bowel or bladder changes, or saddle numbness: these symptoms suggest a more serious central spinal cause (cauda equina syndrome) rather than piriformis syndrome and require urgent spinal assessment. Also seek assessment if symptoms developed after significant trauma.

What Causes Piriformis Syndrome?

Piriformis Syndrome has several possible causes. Understanding the underlying reason is the first step toward effective, targeted treatment. 

Piriformis Muscle Tightness and Overuse

The piriformis muscle externally rotates and abducts the hip. Overuse from running, hiking, cycling, and prolonged sitting causes the muscle to become tight and hypertrophic (enlarged). As the sciatic nerve passes directly beneath (or in some anatomical variants, through) the piriformis, muscle tightness compresses the nerve and causes pain. 

Direct Trauma to the Gluteal Region

A fall on the buttock, a direct blow to the gluteal region, or a hip injury can cause piriformis muscle haematoma (bruising) or scarring that irritates the sciatic nerve. Post-traumatic piriformis syndrome can persist long after the original injury. 

Anatomical Variation

In approximately 15-20% of the population, the sciatic nerve pierces through the piriformis muscle rather than passing below it. This anatomical variant (high bifurcation of the sciatic nerve) predisposes individuals to piriformis-related sciatic compression even with normal levels of muscle activity. 

Sacroiliac Joint Dysfunction

Abnormal motion or inflammation of the sacroiliac joint can create compensatory overload of the piriformis muscle, as the piriformis is a key stabiliser of this joint. SI joint dysfunction and piriformis syndrome frequently co-exist. 

Struggling With Persistent Pain?

Consult one of our DR+ today for a detailed consultation & personalised treatment plan.

What Are the Treatment Options for Piriformis Syndrome?

Pain Medication (Pharmacotherapy)

This involves the use of medications such as Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), opioids, and other specialised medications designed for pain management. The type and dosage are tailored to the individual’s condition and medical history.

Myospan

Minimally invasive treatments aim to effectively relieve common pain conditions by targeting pain sources.

  • Coreflex Injections: Typically contain a corticosteroid and are used for inflamed joints or tissues.
  • Platelet-Rich Plasma (PRP) injections: Utilise own platelets to promote healing in damaged tissues.
  • Intra Articular Injections: Most commonly used to treat osteoarthritis in the hip or knee, but they can also be given in other joints, including shoulders, wrists, ankles, hands, and fingers.

For chronic pain conditions originating from spinal issues, Neurospan can be performed by our team of pain specialists from Singapore Paincare Center.

When Should You See a Doctor for Piriformis Syndrome?

Not all cases need immediate medical attention, but some situations do. See a DR+ doctor if your condition:

  • Buttock pain persisting more than 4-6 weeks without improvement
  • Sciatica-like leg pain without a confirmed lumbar disc cause
  • Pain worsening with sitting, climbing stairs, or hip rotation
  • Deep buttock tenderness and difficulty sitting comfortably
  • Symptoms returning after periods of relief with stretching alone
  • Buttock pain developing after a fall or hip injury

Our Doctors

Our doctors are experienced in assessing piriformis syndrome and other musculoskeletal causes of hip and buttock pain. Through a comprehensive clinical evaluation, they identify tight or inflamed piriformis muscles, nerve compression, and contributing factors that may be causing pain or restricted movement, and guide appropriate treatment or referral when needed.

All DR+ doctors undergo additional training through the Singapore Paincare Academy, where they develop skills in performing targeted injections that may be used in selected cases of piriformis syndrome. These treatments aim to release muscle tension, reduce nerve irritation, relieve pain, and support improved mobility and function.

Prevention Strategies

Incorporating prevention strategies into daily routines can reduce the risk of developing Piriformis Syndrome and help those with the condition effectively manage their symptoms.

  • Regular Exercise: Engaging in consistent physical activity can help maintain muscle health and flexibility.
  • Proper Posture: Maintaining good posture, especially when sitting or standing, can help reduce strain on the piriformis muscle.
  • Stretching and Warm-up: Before any physical activity or exercise, proper warm-up and stretching are necessary to prepare the muscles.
  • Breaks from Prolonged Sitting: Avoid sitting for an extended period of time. Taking regular breaks to stand, walk, or stretch can help alleviate pressure on the piriformis muscle.
  • Lifting Techniques: Learning and applying proper lifting techniques can prevent undue stress on the lower back and buttock muscles.

Our Clinics

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321 Alexandra Road #01-05 Alexandra Central Mall Singapore 159971
+65 8014 0175 (No calls, WhatsApp only)
  • Mon & Tue: 9am to 1pm, 2pm to 4pm, 6:30pm to 9:30pm
  • Wed, Thu & Fri: 9am to 1pm, 2pm to 5pm
  • Sat: 9am to 1pm
  • Closed on Sun & PH
  • (Kindly note that clinic’s last registration is 15 minutes before closing time.)
146 East Coast Rd, Singapore 428835
+65 8911 7225 (No calls, WhatsApp only)
  • Mon & Thu: 8:00am – 2:00pm, 6:00pm – 9:00pm
  • Tue, Wed & Fri: 8:00am – 2:00pm
  • Sat: 8:00am – 12:00pm
  • Sun: 10:00am – 1:00pm
  • PH: Closed
Stars of Kovan, #01-07
988 Upper Serangoon Rd, Singapore 534733
+65 8042 0134 (No calls, WhatsApp only)
  • Mon to Fri: 8:30am – 2:30pm, 6:00pm – 10:00pm
  • Sat & Sun: 8:30am – 12:30pm
  • PH: Closed
  • (Kindly note that clinic’s last registration is 15 minutes before closing time.)
1187 Upper Serangoon Road
#01-54 The Midtown, Singapore 533971
  • Mon & Tue:  8:00am – 12:30pm, 1:30pm – 5:00pm, 6:00pm – 9:00pm
  • Wed: 8:00am – 12:30pm, 6:00pm – 9:00pm
  • Thu: 8:00am – 12:30pm, 1:30pm – 5:00pm
  • Fri: 8:00am – 12:30pm, 6:00pm – 9:00pm
  • Sat: 8:00am – 12:00pm
  • Sun & PH: Closed
(Kindly note that clinic’s last registration is 15 minutes before closing time.)

 

18 Marsiling Lane, #01-269
Singapore 730018
  • Mon: 8:00am – 9:00pm
  • Tue – Fri: 8:00am – 4:30pm, 7:00pm – 9:00pm
  • Sat: 8:00am – 12:30pm
  • Sun & PH: Closed
  • Kindly note that clinic’s last registration is 15 minutes before closing time.
  • (Last registration timing – Mon: 8:45pm, Tue – Fri: 4:15pm & 8:45pm, Sat: 12:15pm)
200 Upper Thomson Road, #01-11
Thomson Imperial Court, Singapore 574424
+65 8804 3211 (No calls, WhatsApp only)
  • Mon to Wed: 8:30am – 10:00pm
  • Thu: 8:30am – 3:00pm, 6:00pm-9:30pm
  • Fri: 8:30am – 6:00pm
  • Sat & Sun: 9:00am – 3:00pm
  • PH: Closed
  • (Kindly note that clinic’s last registration is 15 minutes before closing time.)
529 Ang Mo Kio Ave 10, #01-2353, Singapore 560529
  • Mon, Wed & Fri: 8:30am – 12:30pm, 1:30pm – 4:30pm, 6:00pm – 9:00pm
  • Tue & Thu: 8:30am – 12:30pm, 1:30pm – 4:30pm
  • Sat: 8:30am – 12:30pm
  • Closed on Sun & PH
  • (Kindly note that clinic’s last registration is 15 minutes before closing time.)

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    Frequently Asked Questions (FAQ)

    What is Piriformis Syndrome?

    Piriformis Syndrome is a condition where the piriformis muscle compresses the sciatic nerve, causing pain, numbness, or tingling in the buttock and along the leg.

    Can a GP Doctor treats Piriformis Syndrome?

    Yes. A GP doctor can assess and manage many cases of piriformis syndrome, especially in the early stages. During the consultation, the doctor will evaluate symptoms such as buttock pain, hip discomfort, radiating leg pain, and muscle tightness, and determine whether the condition is likely to be piriformis syndrome or another musculoskeletal issue.

    Treatment may include pain management medications, advice on stretching and physiotherapy, or targeted injection therapies where appropriate. If more complex care is required, the GP doctor may also refer the patient to a pain specialist or other relevant specialist.

    Can Piriformis Syndrome be cured?

    Most cases respond well to non-surgical treatments like physical therapy, stretching, and medication.

    Is Piriformis Syndrome the same as Sciatica?

    No, while they share similar symptoms, Piriformis Syndrome is specifically caused by the piriformis muscle impacting the sciatic nerve, unlike broader causes of sciatica.

    What activities should be avoided with Piriformis Syndrome?

    Activities that exacerbate the pain, like prolonged sitting, repetitive hip movements, or improper lifting, should be minimised.

    How can I prevent Piriformis Syndrome?

    Regular exercise, proper posture, stretching, taking breaks from prolonged sitting, and correct lifting techniques can help prevent it.

    What are the long-term effects of Piriformis Syndrome if left untreated?

    If not properly managed, Piriformis Syndrome can lead to chronic pain and discomfort, potentially affecting mobility and quality of life. Chronic irritation of the sciatic nerve can also result in persistent numbness or weakness in the affected leg.

    Are certain individuals more prone to developing Piriformis Syndrome?

    Yes, individuals who engage in activities with repetitive motion of the hips or prolonged sitting, like runners or office workers, are at higher risk. Anatomical variations in the sciatic nerve’s path can also predispose some people to this condition.

    Can lifestyle changes help manage Piriformis Syndrome?

    Lifestyle modifications can help prevent Piriformis Syndrome. This includes adopting ergonomically supportive seating, incorporating regular stretching and strengthening exercises, maintaining a healthy weight to reduce strain on the body, and ensuring proper posture during daily activities.