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Updated: Apr 18, 2026

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The Tutopatch® assisted surgery for complex strabismus study: TASCS-study.

Ires A W Verhees1, Hinke Marijke Jellema2, Anne-Marie E L Langenhorst3

  • 1Department of Ophthalmology, Radboud University Medical Centre, Nijmegen, The Netherlands.

Acta Ophthalmologica
|April 16, 2026
PubMed
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This summary is machine-generated.

Bovine pericardium (Tutopatch®) is effective for tendon elongation in complex strabismus surgery, offering good long-term ocular alignment and high patient satisfaction. This method shows promise for improving outcomes in challenging strabismus cases.

Area of Science:

  • Ophthalmology
  • Surgical Innovation
  • Biomaterials in Medicine

Background:

  • Complex strabismus often requires advanced surgical techniques.
  • Tendon elongation is a critical procedure for correcting significant ocular misalignments.
  • Evaluating novel biomaterials like bovine pericardium (Tutopatch®) is essential for improving surgical outcomes.

Purpose of the Study:

  • To assess the efficacy of bovine pericardium (Tutopatch®) for tendon elongation in complex strabismus surgery.
  • To evaluate long-term postoperative outcomes, including ocular alignment and duction limitations.
  • To measure patient satisfaction following strabismus surgery using Tutopatch®.

Main Methods:

  • Retrospective review of patients undergoing tendon elongation with Tutopatch®.
Keywords:
Tutopatch®bovine pericardiumduction limitationsextraocular muscle tendon elongationocular alignmentstrabismus surgery

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  • Prospective follow-up visits to assess long-term ocular alignment and duction limitations.
  • Patient satisfaction measured using a Visual Analogue Scale (VAS).

    • Main Results:

    • Surgical success rates of 73% (near) and 60% (distance) were achieved.
    • High patient satisfaction reported (median VAS 9.0), with weak-to-moderate correlation to ocular alignment.
    • Postoperative duction limitations increased initially but improved over time with minimal impact on primary position alignment.

    Conclusions:

    • Tutopatch® represents a viable surgical option for tendon elongation in complex strabismus.
    • The procedure demonstrates favorable long-term ocular alignment and high patient satisfaction.
    • Mild, transient duction limitations were observed, but did not significantly impair functional outcomes.