Hand Therapy Today: Navigating Flexor Tendon Repair for Optimal Recovery
"Explore insights from South African therapists on rehabilitation practices, protocol effectiveness, and the keys to successful hand recovery after flexor tendon repair."
Flexor tendon injuries in the hand are a common and complex problem, often leading to significant functional disability. These injuries demand timely and appropriate management to ensure the best possible outcomes. While skillful surgical techniques are crucial, the subsequent rehabilitation process and patient compliance are equally vital for a successful recovery.
Despite considerable research and clinical efforts, the management of flexor tendon repairs remains challenging. Functional outcomes can be unpredictable, impacting a patient's ability to perform daily activities and participate fully in life. A collaborative approach between surgeons and therapists is essential to optimize these outcomes.
In South Africa, a recent study examined the perspectives of public sector therapists on the rehabilitation of patients with flexor tendon repairs. This research sheds light on current practices, challenges, and opportunities for improving hand therapy protocols in the region. By understanding these insights, we can work toward more effective and consistent care for individuals recovering from flexor tendon injuries.
Early Motion and Therapy Utilization
The Handthology chapter reports that adhesion prevention involves achieving 3–4 mm of intrasynovial tendon glide beginning within 3 days of repair. A 2025 study examined the occurrence, timing, and frequency of hand therapy within 6 months after digital flexor tendon surgery and assessed factors associated with not receiving therapy. Other studies have examined loss to follow-up after flexor and extensor tendon repairs and the relationship between hand therapy utilization, reoperation rates, and costs of care.
Established Methods, Ongoing Uncertainty
Zone II flexor tendon injuries remain challenging for both surgical repair and postoperative rehabilitation. A systematic review and meta-analysis notes uncertainty about which postoperative rehabilitation protocol or strategy is most effective. Flexor tendon repair research has become difficult to follow, and the available evidence has not established a gold-standard repair algorithm. For secondary reconstruction, the IFSSH consensus article suggests one-stage tendon grafting for patients without lengthy pulley destruction requiring pulley reconstruction.
Understanding the Public Sector Therapist's Perspective on Hand Rehabilitation
A cross-sectional survey was conducted involving therapists from both urban and rural public hospitals in two districts of one South African province. The survey aimed to gather data on various aspects of rehabilitation, including the initiation and frequency of therapy, the use of active and resistive exercises, the timing of splint discontinuation, and the presence of established flexor tendon protocols.
- Therapists largely collaborated with physicians.
- Established protocols made them feel secure.
- Tertiary and regional hospitals majorly used established protocols.
- External factors determined the approach for rehab.
Active and Passive Rehabilitation
A systematic review and meta-analysis identifies early active motion and early passive motion as common rehabilitation strategies after zone II flexor tendon repair. The review reports greater range-of-motion improvement with active motion. However, the two approaches had comparable reoperation rates and grip-strength outcomes. These findings support active motion as promising for movement gains while not establishing a clear advantage for every outcome.
Evidence Gaps and Complex Injuries
A randomized controlled trial comparing controlled active motion with early passive mobilization reported that further studies are needed in patients with complex hand injuries and more than one injured digit. The Cochrane review likewise concludes that further research is needed to guide clinicians’ and patients’ rehabilitation choices. Zone II repairs may require additional procedures, such as excision of one FDS slip or part of the A2 or A4 pulleys, which can contribute to poorer mobility and functional outcomes. A separate review found that trials were generally at high risk of bias because of issues including lack of blinding, incomplete outcome data, and selective outcome reporting.
Rupture and Motion Outcomes
A systematic review of flexor tendon rehabilitation protocols reported 57 ruptures, or 4%, and 159 fingers with decreased range of motion, or 9%, among 1,598 repairs using early passive motion protocols, including Duran and Kleinert types. Early active motion results included 75 ruptures, or 5%, and 80 fingers with decreased range of motion, or 6%, among 1,412 repairs. Another systematic review found that the mean rupture rate was lowest for combined Kleinert and Duran protocols at 2.3% and highest for Kleinert protocols at 7.1%. The reported figures therefore show differences between protocol groups without identifying one universally superior approach.
Optimizing Hand Therapy for Better Patient Outcomes
The study's findings highlight the need for continued efforts to standardize and improve hand therapy practices, particularly in rural settings. By providing therapists with access to established protocols, ongoing training, and collaborative support, we can enhance their confidence and competence in managing flexor tendon repairs. This, in turn, will lead to better patient outcomes and improved quality of life.
No Proven Superior Exercise Regimen
An ASHT review examined whether evidence supports one exercise regimen as superior after flexor tendon repair. The regimens considered were early passive exercise, place-and-hold exercise, and true active exercise. Its stated purpose was to determine which approach, if any, produces safe and maximal range of motion. The review therefore frames rehabilitation selection as an evidence question rather than assuming that one regimen is universally best.
Feasibility in Developing-Country Care
A randomized feasibility study examined early active mobilization after flexor tendon repair in the context of care in a developing country. The study reported a 37% recruitment rate, a 97% consent rate, and a 45% retention rate, and concluded that its criteria for success were not met. The trial design was therefore deemed not feasible in that setting. The authors also highlighted the limited research from public-health clinical settings in developing countries and the need to address contextual challenges before further research can succeed.
Timing Therapy and Functional Recovery
A population-based study investigated how the time to hand therapy after isolated zone II flexor tendon repair affects complications and secondary procedures. A separate case study on repaired index flexors describes free tendon gliding and normal hand function as desired outcomes and reports a four-week hand-therapy case. Together, these sources emphasize that recovery involves both the timing of therapy and the practical goal of restoring tendon movement and hand function. The case study is an individual report, so it does not establish outcomes for all patients.