Platelet-Rich Plasma (PRP) Injection in Singapore (PRP Treatment)
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Key Takeaways
- Platelet-rich plasma (PRP) injections deliver a concentrate of platelets and plasma taken from your blood and injected into a specific area to treat various conditions and support your gradual recovery.
- PRP injections may support your recovery from musculoskeletal conditions, arthritis, and post-surgery conditions.
- A PRP injection is prepared by separating blood into its components, then mixing the platelets and plasma into a single concentrate that is injected directly into the treatment area.
What is Platelet-Rich Plasma (PRP)?
Platelet-rich plasma, commonly known as PRP injection is a treatment that uses components of your blood, which are platelets and plasma, to support healing in cases of sports injuries, musculoskeletal pain, and other conditions. Platelets are a vital blood component responsible for blood clotting and also contain proteins called growth factors that support your body’s healing. Meanwhile, plasma is the liquid component of blood. Both components are separated from your blood using a centrifuge, which separates platelets and plasma into a liquid concentrate, resulting in a platelet concentration 5 to 10 times higher than in a regular blood sample.
PRP injections are performed to increase the concentration of growth factors in a specific area, which may support your recovery time and provide some symptom relief. However, the exact mechanisms behind the effects of PRP injections are still being researched.
Consultant Anaesthetist and Pain Physician
Dr. Hope Ang
MBBS (NUS) | MMed (Anaes) | FAMS
Dr Hope Ang is a Consultant Anaesthesiologist with extensive expertise in acute and chronic pain management, dedicated to helping patients regain function, reduce suffering, and improve quality of life through evidence-based, personalised care.
With more than 18 years of clinical experience, Dr Ang specialises in the assessment and treatment of complex chronic pain conditions, including musculoskeletal pain, neuropathic pain, cancer-related pain, and persistent postoperative pain. His approach integrates interventional pain procedures, ultrasound-guided regional techniques, multimodal pharmacological strategies, and close collaboration with multidisciplinary care teams to address both the physical and functional impact of chronic pain.
The Biological Mechanism of Pain Relief
PRP is an autologous product with platelet levels significantly higher than baseline whole blood—often 5 to 10 times greater. These platelets contain alpha-granules that release essential growth factors, including platelet-derived growth factor (PDGF) and transforming growth factor-beta (TGF-β).
The primary evidence-based mechanisms for its analgesic effects include:
- Anti-Inflammatory Action: PRP induces the release of anti-inflammatory cytokines, such as IL-10 and HGF, which help counteract the inflammatory cascade.
- Tissue Regeneration: Growth factors stimulate cell proliferation and collagen production, addressing the underlying structural damage that often causes chronic pain.
- Neurorepair Effects: Emerging research suggests PRP may promote axonal regeneration, offering potential for managing nerve-related pain like lumbar radiculopathy.
Clinical Uses of PRP Therapy
PRP injections have seen growing use over the years, driven by case studies that have informed doctors about their efficacy in certain treatments. As a minimally invasive procedure, PRP injections are primarily used to:
- Stimulate cellular regeneration
- Facilitate gradual recovery
- Reduce inflammation for pain relief
- Promote gradual restoration of mobility
- Provide minor to moderate relief for various conditions
Studies indicate that PRP carries a minimal risk of rejection because it uses your blood. However, the effects of PRP injections may vary from person to person, as an orthopaedic doctor must conduct a thorough evaluation to determine whether you are a suitable candidate for the treatment.
What Conditions Can PRP Treat?
PRP injections are typically prescribed for the following conditions, though ongoing research is determining their actual efficacy for certain treatments.
Musculoskeletal Conditions
PRP may help treat both acute and chronic tendon, muscle, and ligament injuries resulting from accidents or sports. From strained muscles to tennis elbow and meniscus injuries, PRP injections may help your gradual recovery by relieving symptoms and supporting it.
PRP for Chronic Tendon Pain and Tendinopathy
Platelet-Rich Plasma (PRP) therapy is one approach used in regenerative medicine that may be considered for managing chronic tendon pain. While some acute tendon injuries may improve with time, the pain associated with chronic tendinopathy may be more persistent, accompanied by changes in tendon structure and function. PRP has been studied for its potential role in supporting tissue repair.
Chronic Tendon Pain and Tendon Changes
Tendons, which connect muscle to bone, can be vulnerable to repetitive stress. Repeated stress over time may cause changes in tendon structure and function, which may result in persistent pain and reduced tolerance to activity.
PRP, a concentrated solution derived from a patient’s own blood, may help disrupt this chronic pain cycle. A small blood sample is spun in a centrifuge to isolate and concentrate the platelets, creating a preparation containing a higher concentration of platelets than whole blood. The exact concentration varies depending on the preparation method.
Using ultrasound guidance, a physician injects this plasma directly into the affected tendon tissue. The platelet-derived growth factors in PRP have been studied for how they may support cellular processes involved in tissue repair and blood vessel formation.
How PRP May Support Tendon Repair
PRP has been studied for its potential effects on biological processes involved in tendon repair:
- Potential Effects on Tendon Tissue: Chronic pain may persist when a tendon remains structurally compromised. According to laboratory studies, the growth factors from the platelets may support fibroblast activity and collagen production, although results vary between clinical trials.
- Potential Effects on Blood Vessel Formation: PRP may support the formation of new blood vessels, which may help improve the delivery of oxygen and nutrients to affected tissues.
- May Modulate Chronic Inflammation: PRP has been studied for its potential effects on modulating inflammatory signalling in the injured tendon.
Tendon Conditions Where PRP Has Been Studied
PRP has been used to help address long-standing and treatment-resistant tendinopathies:
- Chronic Tennis Elbow (Lateral Epicondylitis): PRP has been studied as a treatment option for pain around the outer elbow and reduced arm function.
- Achilles Tendonitis: Research has looked into how PRP may address ongoing pain and stiffness around the Achilles tendon experienced during walking, running, or exercise.
- Patellar Tendonitis (Jumper’s Knee): PRP has also been investigated to manage persistent pain around the patellar tendon, which may cause discomfort during activities such as running and jumping.
- Rotator Cuff & Plantar Fasciitis: PRP has been studied for certain chronic shoulder conditions and plantar fasciitis, particularly when symptoms persist after initial conservative treatment. However, treatment response can vary depending on the condition and individual patient.
Arthritis
Some studies suggest that PRP injections may support arthritis treatment by reducing inflammation, pain, and stiffness in affected joints, including patients exploring PRP injection for knee pain. Emerging research may also indicate that PRP injections can be administered alongside hyaluronic acid injections to support arthritis treatment. However, further medical studies are necessary to understand the long-term effects of PRP injections for arthritis.
Plantar Fasciitis
Some studies suggest that PRP may provide more sustained symptom improvement at three to six months than corticosteroid injections for chronic heel pain, such as plantar fasciitis. However, outcomes may vary and treatment suitability should be assessed individually by the doctor.
Spine-Related Pain
Discogenic Low Back Pain: Some studies have reported improvements in long-term pain reduction. Intradiscal PRP injections may be considered for selected patients with chronic low back pain originating from an intervertebral disc. However, results may vary depending on patient conditions.
Sacroiliac (SI) Joint Pain: PRP may improve outcomes for patients suffering from chronic SI joint dysfunction.
Adhesive Capsulitis (Frozen Shoulder)
Some comparative studies suggest that PRP injections may help improve pain and range of movement in patients with frozen shoulder.
Post-Surgery Recovery
PRP injections may promote gradual healing and reduce overall recovery times after a major or minor surgery. These injections may be considered for persons experiencing delayed healing due to various conditions.
Bone Healing
Preliminary studies indicate that PRP injections may support slow bone healing, particularly for stress fractures, but further research is still needed.
What Happens During the PRP Therapy: The Procedure
The PRP injection procedure typically takes place at a doctor’s clinic and may take less than an hour to complete.
Initial Preparations
Before undergoing the PRP injection procedure, your doctor will first perform a detailed health assessment to determine if you are eligible for the treatment. If you are eligible for a PRP injection, your doctor may advise you to follow certain restrictions before your injection, including pausing certain medications (such as blood thinners). Individuals with certain blood conditions may not be eligible for PRP injections.
Centrifugation
The doctor will collect a blood sample and place it in a centrifuge, which spins it to separate the blood components by density, concentrating the platelets in the plasma.
Injection
With the PRP solution ready, the doctor will carefully inject it into the area where it is needed. It is usually performed under ultrasound guidance to ensure the PRP solution is injected at the correct site within the treatment area.
The Importance of Ultrasound Guidance for PRP Injections
Ultrasound guidance is used to pinpoint a specific area for a PRP injection, ensuring the correct site is targeted for treatment. The ultrasound scan provides doctors with an image of your internal structures, allowing them to gently guide the syringe needle to the target site to deliver the PRP solution. Accuracy is key to a proper treatment process, as the PRP solution takes time to take effect after injection and must be administered properly.
Recovery and Monitoring
You may need to refrain from strenuous physical activities for some time to allow the PRP solution to take effect. Your doctor may set up a rehabilitation plan to assist with your recovery, along with follow-up appointments to monitor your recovery’s progress. Your doctor may still make recommendations, such as continuing to avoid specific medications, to ensure your recovery progresses without major complications.
How Much Does a PRP Injection Cost in Singapore?
The final cost of PRP therapy may vary depending on various factors, such as:
- The number of PRP injections recommended by the doctor.
- The joint or tissue being treated.
- The complexity of the patient’s condition.
- Whether diagnostic imaging or ultrasound guidance is required.
A consultation and assessment are generally required before cost estimate can be provided based on an individual treatment recommendation.
What to Expect After a PRP Injection
You may experience some mild swelling after your PRP injection, along with some degree of pain or discomfort. These symptoms generally last one or two days and will naturally subside, but seek your doctor’s advice if they persist. It also helps to stay hydrated after the injection to replace lost fluids during the blood draw.
It may take a few weeks before you experience the initial results of the treatment. Furthermore, it may take several months or longer to observe improvements in the treatment area, depending on the number of PRP injections you receive (and whether you are eligible for multiple injections). Be sure to attend your follow-up sessions, so your doctor can closely monitor your condition and adjust your recovery plan, as needed.
PRP injections do still come with some risks, such as bleeding, tissue damage, or infection. Should these risks arise, notify your doctor immediately for prompt treatment and to minimise the risk of complications.
Frequently Asked Questions (FAQs)
How long do the effects of a PRP injection last?
A PRP injection’s effects may last a few months, depending on your current health. If necessary, your doctor may recommend additional injections to continue relieving symptoms.
Will a PRP injection really work?
The effects of a PRP injection will vary from person to person. Even if you are eligible for an injection, you may experience different results, and there is no certainty that PRP injections will work for you. Ongoing research is assessing the long-term efficacy of PRP injections, including testing different PRP formulas and concentrations.
Can I resume my daily activities after a PRP injection?
You should be able to continue your regular activities after your injection. Still, you should avoid straining the treatment area to allow the PRP solution to take effect gradually and support your recovery.
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