Suspended

The Effect of Human Amniotic Membrane Allograft on Functional Recovery After Flexor Tendon Repair: a Pilot Study

0 criteria met from your profileSee at a glance how your profile meets each eligibility criteria.
What is being tested

The use of amnionic membrane allograft

Procedure
Who is being recruted

Tendon Injuries

+ Wounds and Injuries

Over 18 Years
+8 Eligibility Criteria
See all eligibility criteria
How is the trial designed

Treatment Study

Interventional
Study Start: March 2015
See protocol details

Summary

Principal SponsorTampere University
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: March 1, 2015

Actual date on which the first participant was enrolled.

The treatment of flexor tendon transection consists of surgical apposition of the lacerated tendon ends using non-absorbable sutures. Main complications which result in poor outcome of the tendon repair are the rupture of the tendon apposition or substantial adhesion formation between the two tendons or the tendon and the fibro-osseous canal. Adhesion formation is presumed to be a byproduct of the tendon healing. In the course of last 70 decades, the preventive effects of several pharmacological agents and mechanical barriers on adhesion formation have been investigated with some promising findings. One of the mechanical barriers that has been proposed to be suitable for adhesion prevention is human amniotic membrane allograft. However, there are no clinical studies evaluating the use of amniotic membrane in flexor tendon repair. This is a pilot study for the forthcoming randomized controlled study. The objectives of the pilot study are: 1) to test the handleability of the human amniotic membrane allograft in flexor tendon sheath reconstruction in conjunction with flexor tendon repair, 2) to elucidate the possible adverse effects related to the use of amniotic membrane in flexor the sheath, and 3) to gain observational insight into potential preventive features of amniotic membrane transplantation in the adhesion formation. The hypothesis of the pilot study is that the application of the human amniotic membrane allograft in tendon sheath reconstruction in flexor tendon injury patients is technically feasible and results in no adverse effects to the patient. A total of 10 patients with an acute flexor tendon injury will be included in the pilot study. After conventional tendoraphia, the amniotic membrane will be wrapped around the tendons and its borders will be fixed to the remaining tendon sheath. The primary outcome measure is total range of movement after 6 months of the surgery.

Official TitleThe Effect of Human Amniotic Membrane Allograft on Functional Recovery After Flexor Tendon Repair: a Pilot Study
Principal SponsorTampere University
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

5 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Tendon InjuriesWounds and Injuries

Criteria

3 inclusion criteria required to participate
Acute flexor tendon transection in zone 2 in digits 2, 3, 4, or 5 (diagnosed within 1 week after the injury)

Age over 18

Patient's willingness to participate in the study

5 exclusion criteria prevent from participating
Tendon transection within 8 mm of its distal insertion (requiring reinsertion)

Soft-tissue loss, severe crush, fracture, palmar plate injury, patient requiring revascularization

Cognitive impairment or other factors (prisoner, military serviceman) which may affect one's decision making

Substance abuse

Show More Criteria

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

One single intervention group is designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
After the conventional flexor tendon repair, the amniotic membrane will be wrapped around the tendons and its borders will be fixed to the remaining tendon sheath.

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

University of Tampere

Tampere, FinlandOpen University of Tampere in Google Maps
SuspendedOne Study Center