Table of Contents
Clinical Summary:
The Gap: Home therapy after reverse shoulder replacement is the question most clinicians haven't systematically answered. Most reverse TSA patients are routinely referred to formal outpatient physical therapy as a default, without a systematic process for identifying which patients actually need supervised care versus which can achieve equivalent outcomes independently.
The Evidence: The 2025 SHORT trial (222 shoulders, 2-year follow-up, Neer Award winner) found no significant differences in any outcome measure between surgeon-directed home therapy and formal outpatient PT. Home therapy cost $11,285 versus $17,837 for formal PT (p<0.01).
The Takeaway: Appropriately selected reverse TSA patients can achieve equivalent outcomes at home. Formal PT should be reserved for complex cases, complications, and failure to progress. Not prescribed as a default for everyone.
In 2025, a multicenter randomized controlled trial answered one of the most practically significant questions in shoulder arthroplasty rehabilitation: does formal outpatient physical therapy supervised by licensed therapists produce better outcomes than a structured surgeon-directed home program after reverse TSA?
The answer was no. And the cost difference was $6,552 per patient.
The SHORT trial (Surgeon-directed Home therapy versus Outpatient Rehabilitation by physical Therapists. It won the Neer Award, the most prestigious recognition in shoulder and elbow surgery research. Its findings have immediate, direct implications for how reverse TSA rehabilitation is delivered, resourced, and justified.
What the SHORT Trial Actually Found
The SHORT trial randomized 222 shoulders to surgeon-directed home exercise programs or formal outpatient PT after reverse TSA. At both one and two years, there were no statistically significant differences in range of motion, ASES score, Simple Shoulder Test, VAS pain, complications, or revision rates. One-year care cycle cost: $11,285 for home therapy versus $17,837 for formal PT, a $6,552 difference (p<0.01).
Cost Savings Per Patient:
$6,552
Home therapy: $11,285 vs formal PT: $17,837, with equivalent outcomes in ROM, pain, function, complications, and revision rates at 1 and 2 years.
Two years of follow-up. No difference in any clinical outcome. $6,552 less per patient. Those three data points represent one of the more significant practice-changing findings in shoulder rehabilitation in recent years. And most outpatient protocols haven't been updated to reflect them.
What the SHORT Trial Does and Doesn't Say About Home Therapy After Reverse Shoulder Replacement
The SHORT trial finding is specific and bounded. It studied reverse TSA patients. Not anatomic TSA, not revision cases. Both groups in the trial received structured protocols with clear instructions and regular surgeon follow-up. The savings come from reducing supervised sessions, not from reducing guidance or support. A patient sent home with vague instructions and no follow-up structure is not in the SHORT trial model.
The SHORT trial showed that structured home programs are equivalent to formal PT, not that less guidance is equivalent to more. The quality of the home program is the mechanism by which the model works.
The trial also allowed transitions to formal therapy as needed. Patients who developed complications, had poor early progress, or had specific risk factors could move to formal PT within the study design. That flexibility is the model. Not a blanket prescription of home programs for everyone, but a triage framework that reserves supervised care for those who genuinely need it.
Which Patients Can Succeed at Home
The SHORT trial framework suggests the following patient profile for home-based rehabilitation after reverse TSA:
- Uncomplicated rTSA without subscapularis repair or concurrent tendon transfers
- Adequate cognitive capacity to follow written instructions and recognize concerning symptoms
- No significant comorbidities expected to complicate early recovery (poorly controlled diabetes, severe obesity with wound healing concerns, revision procedure)
- Functional home environment with space for prescribed exercises
- Reliable access to contact the surgical team if concerns arise
- No early complications or failure to achieve expected milestones in the first 2–3 weeks
Both groups in the SHORT trial received structured, written protocols and regular surgeon follow-up. The clinical takeaway is not that home programs require less work from the care team. It's that the work shifts from session-by-session supervision to up-front program design and patient education. A well-designed home program is not a lower standard of care. It is a different delivery model for the same standard.
Reverse Shoulder Replacement Rehabilitation: Evidence-based protocol for reverse TSA
Which Patients Still Need Formal PT
Home therapy after reverse shoulder replacement is appropriate for most uncomplicated cases. Formal supervised therapy remains the appropriate standard for specific patient profiles. And the SHORT trial design explicitly allowed for transition to formal PT when clinically indicated. Reserve supervised care for:
- Patients with complications (wound concerns, pain not following expected trajectory, early instability symptoms)
- Complex cases: revision arthroplasty, concurrent subscapularis repair, tendon transfers, bone grafting
- Significant comorbidities: poorly controlled diabetes, obesity with wound risk, severe depression or chronic pain affecting compliance
- Cognitive or social barriers to independent home program execution
- Any patient who fails to achieve expected milestones on a home program within 3–4 weeks
Formal PT becomes more valuable, not less, when it is reserved for patients who genuinely need it. Triage that identifies those patients is the clinical skill the SHORT trial rewards.
What a Well-Designed Home Program Includes
The SHORT trial's equivalence finding depends on the home program being structured and specific. Not generic. A home program that enables the model includes: written exercise instructions with photographs or diagrams, clear parameters for each exercise (repetitions, frequency, progression criteria), explicit escalation criteria in plain language ("call if your pain is getting worse instead of better after the first week"), a scheduled check-in timeline with the surgical team, and a defined transition point to formal PT if milestones aren't met.
The rehabilitation clinician's role in the home program model shifts from session supervisor to program architect and triage assessor. The initial evaluation, program design, and patient education are where clinical expertise is most concentrated. And they have downstream effects that extend well beyond a single supervised session.
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When complications require formal PT over home programs
The Bottom Line
The SHORT trial is a practice-changing finding for reverse TSA rehabilitation. Appropriately selected patients can achieve equivalent outcomes at home at $6,552 less per patient over one year. The clinical imperative is developing a triage framework that identifies those patients reliably. And designing home programs that are structured enough to deliver the model the evidence supports.
← Full TSA rehabilitation guide | Reverse TSA rehabilitation protocol →
FAQs
What did the SHORT trial find about home therapy after shoulder replacement?
The 2025 SHORT trial found no significant differences in range of motion, ASES score, pain, complications, or revision rates at one and two years between surgeon-directed home programs and formal outpatient PT after reverse TSA. Home therapy cost $11,285 per patient versus $17,837 for formal PT, a $6,552 difference with statistical significance (p<0.01).
Does the SHORT trial mean physical therapy has no value after shoulder replacement?
No. Both groups in the SHORT trial received structured protocols and regular follow-up. The finding demonstrates that appropriately selected, well-educated reverse TSA patients can achieve equivalent outcomes at home. Not that guidance and support are unnecessary. Formal PT remains the standard for complex cases, complications, and patients who fail to progress on home programs.
Who is a good candidate for home-based rehabilitation after reverse shoulder replacement?
Uncomplicated rTSA without subscapularis repair, adequate cognitive capacity for independent program follow-through, no significant comorbidities expected to complicate recovery, functional home environment, and reliable surgeon access if concerns arise. Any patient who develops complications or fails to meet expected milestones within 3–4 weeks should transition to formal PT.
Does the SHORT trial apply to anatomic shoulder replacement rehabilitation?
No. The SHORT trial specifically studied reverse TSA patients. Anatomic TSA requires strict subscapularis protection during Phase 1 with passive motion only within specific parameters, followed by supervised active motion progression. The evidence base for home-based rehabilitation after anatomic TSA is less established, and formal therapy is generally appropriate for that procedure type.
What should a home program after reverse shoulder replacement include?
Written exercise instructions with specific parameters (repetitions, frequency, progression criteria), photographs or diagrams for each exercise, explicit escalation criteria in plain language, a scheduled follow-up timeline with the surgical team, and a defined transition point to formal PT if milestones aren't met within 3–4 weeks. The quality of the program design determines whether the home model works.
