PRP Angel® is the most advanced fully automated PRP system on the market. Unlike conventional PRP systems (including ACP), Angel® separates blood fractions not by gravity but on the basis of optical measurement (flow cytometry), achieving previously unparalleled precision and up to 18-fold platelet concentration.

How Does Angel® Differ from Conventional PRP?

  • Blood collection: 40 to 180 ml of the patient’s whole blood (vs 15 ml for standard PRP)
  • 3-Sensor Technology (3ST) – three optical sensors based on flow cytometry and light absorption monitor the composition of each centrifuged blood fraction in real time
  • Full automation – the device itself determines when and what volume of each fraction to collect
  • Programmability – the physician can pre-set the final composition: pure leukocyte-poor PRP, PRP with a specified leukocyte count, or PRP enriched with bone marrow stem cells (with marrow aspiration)
  • Platelet concentration: up to 18× above baseline – far exceeding any other PRP system
  • Reproducibility: thanks to automation, each preparation has virtually identical composition, eliminating operator error

Why Does Higher Platelet Concentration Matter?

The key parameter of PRP efficacy is the dose of growth factors delivered to the tissue. This dose is the product of: preparation volume × platelet concentration × growth factors per platelet. At 16–18× concentration instead of 2–5× (standard PRP), we deliver 3–9 times more growth factors in a single injection, enabling:

  • Therapy in a single session instead of a cycle of 3–6 injections (as with ACP)
  • Effective treatment of hard-to-reach, poorly vascularised structures, e.g. intervertebral discs (disc herniation), nerve roots, atlantooccipital (C0/C1) and atlantoaxial (C1/C2) joints
  • A stronger regenerative effect in advanced degenerative changes
  • Stimulation of cartilage regeneration, tendon and ligament repair, and activation of stem cells in the vicinity of the injection

Indications for PRP Angel® at Our Centre

  • Lumbar, thoracic and cervical disc herniation – intradiscal injection under X-ray guidance (1, 2 or 3 levels)
  • Degenerative facet joint disease – injections under X-ray guidance
  • Instability and degenerative changes of atlantooccipital (C0/C1) and atlantoaxial (C1/C2) joints – an area of difficult invasive access where PRP Angel’s concentration is crucial
  • Advanced degenerative disease of the knee, hip and shoulder joints
  • Radicular pain in the course of radiculopathy – perineural injections
  • Serious tendon and ligament injuries where standard PRP has not yielded expected results

Procedure Sequence

  • Consultation with a pain medicine physician including review of imaging studies and determination of the protocol (injection levels, PRP volume, delivery technique).
  • Collection of 100–180 ml of the patient’s venous blood – a larger volume than with standard PRP, but completely safe.
  • The blood is placed in the Angel® device – the preparation process takes 30–60 minutes with full 3ST monitoring. Thanks to single-use sterile sets, the blood never contacts the device; it moves in a closed circuit, effectively preventing contamination.
  • The physician performs the injection under X-ray guidance (spine, disc, atlantooccipital joints) or ultrasound guidance (peripheral joints). For intradiscal injections, analgesia is often used.
  • After the procedure the patient is observed for 30–60 minutes, then goes home with a third-party driver.

Treatment Schedule

Due to the very high growth factor concentration, PRP Angel® is usually administered as a single session. For severe multilevel changes or intradiscal injection, therapy may be planned as a cycle of 3 procedures at individually determined intervals.

Preparation

  • Discontinue NSAIDs 7 days before the procedure (ibuprofen, naproxen, diclofenac)
  • Good hydration 24 hours before blood collection
  • A light meal 2 hours before the procedure
  • Arrange return transport
  • Contraindications: active infections, severe anaemia, thrombocytopenia, cancer and blood diseases, anticoagulants (subject to individual assessment)

Effects

  • First noticeable changes: 4–6 weeks after injection (longer than with standard PRP – reflecting deeper tissue remodelling)
  • Full effect: 3–6 months after the procedure
  • Duration of effect: 12 months to several years, individually
  • Individually tailored rehabilitation cycle is recommended post-procedure (kinesiotherapy, manual therapy, activity modification)

FAQ

How does PRP Angel® differ from PRP ACP Arthrex?

Angel® uses flow cytometry (3-Sensor Technology), achieving platelet concentrations up to 18× above baseline (vs 2–3× with ACP) and a programmable preparation composition. ACP is simpler, less expensive and sufficient for many indications; Angel® is used where the maximum ‘dose’ of PRP in a single injection is needed (disc herniation, severe degenerative changes, atlantooccipital joints).

Is intradiscal injection safe?

Yes – intradiscal injection under fluoroscopic X-ray guidance is a procedure performed for decades (including ozone nucleolysis). PRP Angel® administered to the disc stimulates regeneration of the nucleus pulposus and restores disc structure. The procedure is safe in experienced hands.

Why is Angel® more expensive than standard PRP?

The price reflects the technology: larger blood volume collected, fully automated 3ST calibration, single-use advanced material sets, and a significantly higher ‘dose’ of growth factors in a single injection (which usually eliminates the need to repeat the procedure).