About this case study: This is a composite illustration based on industry benchmarks and PostKnock's playbook design. Business names, locations, and exact figures are illustrative — typical results vary by market, list quality, and offer. We use composites here to show what a well-run campaign looks like end-to-end before customer-permission case studies are available.

Physical Therapy · Composite Case Study

PT Progress Restart: Reactivating 280 Patients Who Stopped Mid-Plan

Updated May 2026 · 7 min read

Business profile (composite)

Practice / Shop

Stillwater Physical Therapy

Market

Suburban Minneapolis, 9,200 households

Size

1 PT, 1 PTA, 1 admin, $410K annual revenue

The challenge

Stillwater PT had a quiet leak that the owner-clinician hadn't fully measured until she sat down with the EMR's lapsed-patient report. Of the 600+ patients she'd treated in the previous two years, roughly 280 had stopped attending before completing their plan of care. Some had hit insurance visit caps. Many had simply felt "good enough" after 4-6 visits and ghosted the remaining 4-6 prescribed sessions — only to call back 8 months later with the same complaint, often worse.

The clinical risk was real: incomplete PT plans correlate strongly with re-injury, and re-injury cases are clinically harder and reimburse worse. The business risk was the same gap from the other side: each dropout represented 4-6 missed billable visits at an average of $145, plus the long tail of likely re-injury that would hit her caseload eventually.

Existing recall was a clipboard reminder her front-desk admin printed on Mondays and worked through reactively. Email had been tried and abandoned — open rates were fine but bookings tracked to it were near zero. The owner suspected patients didn't think of email reminders as "clinically meaningful." A physical card from the clinic, framed around their progress, might.

The PostKnock approach

Playbook used: Lapsed Patient Reactivation

We deployed PostKnock's Lapsed Patient Reactivation playbook, with creative tuned for clinical recall rather than promotional reactivation. The 280-patient list was segmented by drop-out reason where we could infer it: insurance-cap dropouts (60), early-improvement dropouts (170), and "unknown gap" (50). Each got a slightly different headline but the same core message: come back and finish the plan we started.

Wave 1 was a 6x9 postcard with a printed line referencing the patient's body region ("It's been a while since we worked on your shoulder") and a soft CTA: schedule a 15-minute progress check, no commitment to ongoing care. The card carried a QR code with a UTM-tracked booking link and a callback number routed through a Twilio line. Three days after drop, the admin worked the non-responder list with a clinically-framed script written by the owner-clinician — emphasizing re-injury risk, not discount.

Wave 2 dropped at week 4 with a different design — a "your progress isn't lost" angle citing the body's tendency to lose neuromuscular gains within 60-90 days of stopping rehab. Wave 3 at week 9 was the deadline message: "we'll archive your active care plan on [date] — let us know if you want to reopen." Total: 840 pieces, ~120 outbound calls. The owner approved each creative herself; the playbook surfaced clinically-appropriate copy options that didn't read as promotional.

Campaign timeline

Week 0
EMR export, 3-segment split, copy review with clinician for clinical accuracy.
Week 1
Wave 1 drops (280 cards). Clinical body-region personalization.
Week 2
Admin runs follow-up calls. 78 dials, 31 connects, 4 schedule on call.
Week 4
Wave 2 drops (280 cards). "Your progress isn't lost" angle.
Week 5-6
Bookings flow. 7 progress checks scheduled.
Week 9
Wave 3 drops (280 cards). Hard deadline framing.
Week 11-12
Final tally. 13 patients restarted active plans.

Results

Response rate

4.6%

on 840 pieces

Conversions

13

31 calls connected

Revenue

$11,830

first-attributable

ROI

3.4x

on $3,460 cost

Thirteen patients restarted active care across 280 unique recipients — a 4.6% response that sits comfortably in the 3-6% benchmark for healthcare recall. Average remaining plan-of-care value at this practice is $910 (6.3 visits at $145 average ticket), giving us $11,830 in newly-realized billable revenue from the campaign. None of these visits would have happened without intervention; the EMR had marked the cases dormant.

Campaign cost ran $3,460 — $504 in postcards (840 pieces at $0.60), $297 in PostKnock Pro for 3 months, and $2,659 in admin labor for the call follow-up. Net first-year ROI of 3.4x is the floor, not the ceiling — clinically, completing the original plan of care reduces re-injury rate by 30-50%, which means fewer harder cases on her caseload 6-18 months out. The owner now plans a quarterly recall cadence on rolling drop-out cohorts.

“I'm a clinician — I'm not comfortable doing aggressive marketing. The PostKnock copy reviewed like a clinical letter, not a sales pitch. I sent it because I genuinely want these patients to finish what we started.”

— Owner-Clinician, Stillwater PT (composite illustration)

What we’d do differently

  • Body-region personalization moved the needle. Cards that said "your shoulder" or "your knee" pulled meaningfully better in front-desk callback mentions than generic "your care plan." EMR export must include the treated region.
  • Wave 3's deadline framing felt aggressive but converted four patients who had ignored Wave 1 and 2. We'd keep it — clinically honest if the EMR genuinely archives dormant plans.
  • We should have screened out patients who'd been formally discharged. Two cards went to patients whose plans were closed appropriately, which created an awkward call. Tighter EMR filter on "open vs discharged" status next time.

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