Platelet-Rich Plasma (PRP) Augmentation: Post-Injection Physiotherapy Protocols
In short
Platelet-Rich Plasma delivers concentrated autologous growth factors to stimulate tendon healing. Master the post-injection rehabilitation protocol that optimises outcomes.
In this guide (4 sections)
The application of autologous biological therapies, particularly Platelet-Rich Plasma (PRP), has gained immense popularity in the management of partial-thickness rotator cuff tears and surgical repair augmentation. Prepared by centrifuging the patient's whole blood to obtain a concentrated suspension of platelets, PRP releases an array of vital growth factors directly into the injured tendon microenvironment. These signaling molecules include platelet-derived growth factor (PDGF), transforming growth factor-beta (TGF-beta), and vascular endothelial growth factor (VEGF). However, clinical trials demonstrate that the success of PRP is heavily contingent upon what happens after the needle is withdrawn: administering an injection without a structured, biologically calibrated physiotherapy protocol frequently leads to treatment failure.
Navigating PRP Expectations and Household Recovery in India
In Indian orthopaedic practice, patients frequently opt for PRP injections as a non-surgical alternative to avoid workplace absence and hospital admission. Many patients assume that because PRP is a modern biological therapy, they will experience instantaneous pain relief and can immediately return to heavy domestic chores. In reality, the immediate post-injection window is characterized by a temporary flare of inflammatory pain that can last three to five days. In Indian households, patients must be advised not to take over-the-counter anti-inflammatory painkillers like ibuprofen or diclofenac, as these medications extinguish the very inflammatory healing cascade that PRP is designed to initiate. Homemakers must arrange family assistance for cooking, cleaning, and laundry during the initial two-week biological stabilization window.
Formulation Differences: Leukocyte-Poor Versus Leukocyte-Rich PRP
The biological efficacy of PRP in tendinopathy depends critically on its cellular formulation, particularly the presence or absence of white blood cells. Leukocyte-Poor PRP (LP-PRP) is considered the formulation of choice for intratendinous rotator cuff injection. Pro-inflammatory cytokines released by neutrophils in Leukocyte-Rich PRP (LR-PRP), such as matrix metalloproteinases and interleukin-1-beta, can trigger excessive tissue catabolism, tenocyte apoptosis, and severe post-injection pain. In contrast, LP-PRP provides concentrated anabolic growth factors that stimulate host tenocyte migration, improve collagen type I gene expression, and promote organised neovascularization without inducing tissue degradation.
The Three-Phase Post-PRP Rehabilitation Architecture
Post-PRP rehabilitation progresses through three structured phases. Phase 1 (days zero to fourteen) focuses on biological protection and cellular recruitment. For the first forty-eight hours, the shoulder is rested in a sling, with cryotherapy utilized for post-injection ache. Days three to fourteen permit gentle pain-free passive range of motion and periscapular postural setting; all heavy lifting and aggressive stretching are strictly prohibited. Phase 2 (weeks three to six) introduces active-assisted to active unassisted elevation within comfortable planes and initiates low-resistance isometric rotator cuff recruitment. Phase 3 (weeks seven to twelve) implements progressive eccentric loading and heavy slow resistance drills to stimulate collagen remodeling.
Gentle Scapular Setting and Pendulum Mobilization (Days 3 to 14)
Objective: Maintain capsular fluid circulation and periscapular tone without disturbing the localized biological PRP clot
- 1Lean forward over a sturdy table, resting your non-affected forearm on the surface to support your upper body.
- 2Allow your injected arm to hang freely toward the floor, completely relaxed like a loose clock pendulum.
- 3Use gentle swaying of your torso to initiate small, smooth circles of the hanging arm, about the size of a dinner plate.
- 4Perform 10 clockwise circles and 10 anticlockwise circles, ensuring your shoulder muscles do not actively contract.
- 5Stand upright slowly, draw your shoulder blades gently backward and downward, and rest comfortably.
| Post-Injection Phase | Biological Tissue State & Protection Guidelines | Prescribed Physiotherapy Modalities & Exercise Loading |
|---|---|---|
| Phase 1: Biological Protection (Days 0-14) | Platelet degranulation; growth factor release; cellular migration; strictly zero NSAID medications permitted. | Sling for 48 hours; gentle pendulum exercises; active wrist/elbow mobility; postural periscapular setting. |
| Phase 2: Active Re-Education (Weeks 3-6) | Tenocyte proliferation; early extracellular matrix synthesis; tissue remains structurally fragile. | AAROM progressing to active unassisted elevation; low-load isometric rotator cuff holds; closed-chain wall slides. |
| Phase 3: Collagen Remodeling (Weeks 7-12) | Collagen type I deposition; fiber bundle realignment; increasing tensile load-bearing capacity. | Progressive eccentric loading; heavy slow resistance (HSR) drills; functional multi-planar reaching. |
| Phase 4: Return to Activity (Weeks 12+) | Maturation of repaired collagen matrix; normalization of tendon thickness on follow-up ultrasound. | High-velocity sport-specific training; heavy manual labour conditioning; long-term maintenance programme. |
Patients must strictly avoid all oral non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, diclofenac, naproxen, and aceclofenac for at least two weeks following a PRP injection. NSAIDs inhibit the cyclooxygenase pathway and block platelet aggregation, directly nullifying the biological effectiveness of the therapy.
Frequently Asked Questions
Why did my shoulder hurt more for the first few days after my PRP injection?
PRP works by deliberately initiating a concentrated, natural healing inflammation inside the tendon. Over the first forty-eight to seventy-two hours, concentrated platelets release growth factors that attract healing cells, which temporarily increases local pressure and soreness. This initial flare is completely normal and indicates that the biological healing response has been activated.
Do I need a doctor referral to see a rotator cuff physiotherapist on BookPhysio.in?
BookPhysio.in does not require a physician prescription. Under the National Commission for Allied and Healthcare Professions (NCAHP) Act 2021, patients across India enjoy direct access to autonomous registered physiotherapists. Through BookPhysio.in, you connect directly with verified clinicians and pay per session with transparent fees, completely free from advance package commitments, commission markups, or platform subscription charges.
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BookPhysio.in Editorial Team
The BookPhysio.in editorial team writes and maintains this content, checking it against reliable clinical sources. Content follows our medical review policy: general information only, and no page claims a clinical review until a named registered physiotherapist has signed it off.
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