Evidence Review · Rotator Cuff Repair
Suture tape can improve the initial mechanical properties of a repair construct, but current clinical evidence does not consistently show faster healing, better function, or a lower retear rate than conventional high-strength sutures.
Short answer: Suture tape may provide greater time-zero contact pressure, stiffness, and load to failure in laboratory models. However, these biomechanical advantages have not consistently translated into superior tendon healing or fewer retears in patients. Tear characteristics, tissue and bone quality, repair tension, fixation technique, patient factors, and rehabilitation remain important parts of the outcome.
Key Takeaways
Flat tape distributes force across a broader area of tendon than a round suture of similar intended use.
Biomechanical studies commonly report higher contact pressure, stiffness, or failure load.
Comparative clinical studies have generally found similar retear rates and patient-reported outcomes.
Material choice is one variable within the complete repair construct and postoperative care pathway.
What Is Suture Tape?
Suture tape is a flat, braided, non-absorbable suture material used in soft-tissue fixation. Compared with a conventional round high-strength suture, its ribbon-like profile increases the surface area contacting the tendon. The intended mechanical rationale is to distribute load over a wider region and reduce concentrated stress at the suture–tendon interface.
The term suture tape describes a material format, not a single standardized product. Tape width, fiber composition, braid, coating, handling characteristics, sterilization method, and compatibility with an anchor can vary by manufacturer. Evidence obtained with one branded tape or repair construct should therefore not automatically be applied to every tape-and-anchor combination.
XC Medico's UHMWPE sports medicine sutures provide product-level information for professional evaluation. Product specifications should be reviewed separately from the clinical evidence summarized in this article.
How Is Suture Tape Used in Rotator Cuff Repair?
During arthroscopic rotator cuff repair, the torn tendon is mobilized and fixed back to its humeral footprint. The surgeon passes suture or tape through the tendon and secures it with one or more anchors. Tape may be incorporated into single-row, double-row, transosseous-equivalent, or suture-bridge constructs.
The material cannot be evaluated independently of the construct. The number and location of anchors, tape passage pattern, medial-row tension, lateral fixation, tissue bite, tendon mobility, and anchor purchase in bone can all affect repair mechanics. A stronger material does not compensate for poor tissue quality, excessive repair tension, or inadequate anchor fixation.
- Single-row repair: anchors are generally positioned in one row along the footprint.
- Double-row repair: medial and lateral fixation points are used to restore a broader tendon-to-bone footprint.
- Suture-bridge repair: suture or tape spans the tendon and is secured laterally, often without lateral-row knots.
- Rip-stop configuration: tape may form part of a load-sharing construct intended to resist tissue cut-through.
What Does the Biomechanical Evidence Show?
Laboratory studies generally support the mechanical rationale for tape. In an ovine model reported by Liu and colleagues, tape repairs produced greater footprint contact pressure and higher ultimate failure load than No. 2 suture repairs using the same knotless anchor system. The human part of that study, however, did not show a lower six-month retear rate.
| Study | Model | Main finding | What it does not prove |
|---|---|---|---|
| Liu et al., 2017 Laboratory + cohort | 16 ovine shoulders for mechanical testing | Contact pressure: 0.33 ± 0.03 MPa with tape versus 0.11 ± 0.03 MPa with suture. Ultimate failure load: 217 ± 28 N versus 144 ± 14 N. | It does not establish faster biological healing or a lower patient retear rate. |
| Huntington et al., 2018 Laboratory | Ovine suture-bridge constructs | Some tape configurations produced higher contact pressure, contact area, or tensile strength. | Results varied with anchor configuration and came from an animal model. |
| Borbas et al., 2021 Cadaveric | Material tests and human cadaveric cuff tendons | As a group, tapes showed higher stiffness and load-related performance than round sutures. | Time-zero cadaveric testing cannot measure tendon-to-bone healing in living patients. |
Biomechanical superiority is a property of the tested construct at time zero; it is not, by itself, proof of superior clinical healing.
Why Wider Tape May Reduce Local Tissue Stress
A wider tape can spread force across more tendon surface. This may increase resistance to cut-through in some test conditions. Nevertheless, tissue response depends on tape width, the passage pattern, applied tension, tissue degeneration, cyclic loading, and the complete fixation construct. It is more accurate to say tape may improve load distribution than to claim that it always causes less tissue damage.
Does Better Biomechanics Produce Better Clinical Healing?
Not consistently. The clinical literature is more cautious than the current marketing language often used around tape. Comparative studies generally show that tape can be used successfully, but they have not established a reliable reduction in retears or a consistent improvement in patient-reported outcomes.
| Clinical evidence | Groups and follow-up | Result | Interpretation |
|---|---|---|---|
| Liu et al., 2017 | Tape n=50; suture n=100; ultrasound at 6 months | Retear: 16% with tape versus 17% with suture. | Similar retear rates despite better laboratory mechanics; retrospective, single-surgeon cohort. |
| Systematic review and meta-analysis, 2021 | 681 clinical repairs across six clinical studies | Retear: 16% with tape versus 20% with conventional suture; P=.26. No qualitative difference in patient-reported outcomes. | No statistically significant clinical advantage; higher-quality studies were still needed. |
| Nie et al., 2025 | Tape-anchor group n=36; traditional-anchor group n=50; minimum 12-month follow-up | Retear: 11.1% versus 12.0%; no significant difference. Tape-anchor group showed some advantages in tendon thickness and muscle strength. | Promising secondary findings, but the retrospective design and small sample limit causal conclusions. |
Evidence limitation: Studies compare different tape products, anchors, passage patterns, repair constructs, tear sizes, imaging methods, and follow-up periods. Many clinical studies are retrospective. It is therefore inappropriate to present a single percentage as the expected result for every patient or every device system.
What About Pain, Opioid Use, and Return to Sport?
Current evidence does not justify claiming that suture tape alone reliably reduces postoperative pain, opioid use, or time to return to sport. These outcomes are strongly influenced by anesthesia, analgesic protocols, concomitant procedures, tear characteristics, rehabilitation, patient expectations, and activity demands. Unless a study directly compares tape and conventional suture while controlling these variables, its pain or recovery data should not be attributed to the suture material.
Suture Tape and Knotless Anchors
Knotless anchors can secure suture or tape without a traditional tied knot at that fixation point. Depending on the system and technique, this may simplify tensioning, reduce knot-related bulk, or avoid medial-row knot compression. For a general explanation of fixation devices, see how suture anchors work.
Knotless does not automatically mean stronger, safer, or clinically superior. A systematic review of 1,411 shoulders found no significant difference in overall retear rates between knot-tying and knotless double-row repairs, although the distribution of retear patterns differed. Another meta-analysis likewise found no significant overall retear-rate advantage for either approach.
Anchor material is also a separate decision from suture format. The article on PEEK and metal suture anchors discusses imaging, revision, and material considerations without treating one material as universally preferable.
Device-specific caution: Eyelet configuration, locking mechanism, insertion method, drill or punch preparation, tape compatibility, and recommended tensioning are product-specific. Always consult the applicable instructions for use and local regulatory requirements.
What Factors Influence Rotator Cuff Healing?
The suture material is only one part of rotator cuff healing. Clinical decisions and outcome interpretation should also consider:
Tear size, chronicity, retraction, number of tendons involved, and repair tension affect prognosis.
Tendon thickness, degeneration, fatty infiltration, muscle atrophy, and mobility influence fixation.
Bone quality, anchor placement, insertion technique, and construct configuration affect anchor purchase.
Age, smoking or nicotine exposure, metabolic health, activity demands, and rehabilitation adherence matter.
A well-designed repair must balance compression and stability with protection of the tendon and its blood supply. Excessive tension or inappropriate rehabilitation loading can compromise a repair regardless of whether tape or round suture is used.
How Should Professionals Evaluate a Tape-and-Anchor System?
For surgeons, hospitals, and distributors, a useful evaluation goes beyond a single load-to-failure value. The evidence and procurement review should address the complete system.
| Evaluation area | Questions to verify |
|---|---|
| Material | What are the fiber composition, tape width, braid, coating, sterilization method, and labeled indications? |
| Anchor compatibility | Which anchor sizes and eyelet or locking mechanisms are validated for the tape? |
| Construct testing | Were cyclic displacement, pullout, cut-through, and failure mode tested as a complete construct? |
| Instrumentation | Are passers, punches, drills, inserters, and tensioning steps clearly matched to the system? |
| Documentation | Are instructions for use, traceability, packaging information, shelf life, and relevant regulatory documents available? |
| Clinical evidence | Does the cited evidence apply to the same material, anchor, technique, and intended use? |
When evaluating a complete procedural offering, the available arthroscopic shoulder suture passer set may also be reviewed alongside the planned repair workflow. Compatibility and intended use must be confirmed from product documentation rather than inferred from an educational article.
Frequently Asked Questions
Is suture tape stronger than conventional suture?
Many laboratory studies report higher stiffness, contact pressure, or failure load for tape. The result depends on the specific products, tendon model, knots or anchors, and repair configuration. Mechanical strength alone does not prove better healing in patients.
Does suture tape reduce rotator cuff retear rates?
Current comparative evidence has not consistently demonstrated a statistically significant reduction. Tape and conventional high-strength suture groups have generally shown similar retear rates, although research continues to evaluate particular constructs and patient subgroups.
Does suture tape speed up recovery?
There is not enough evidence to attribute faster recovery to the tape itself. Recovery depends on tear severity, tissue quality, concomitant procedures, postoperative protection, rehabilitation, and individual patient factors.
Are knotless anchors better for rotator cuff repair?
Knotless anchors offer specific construct and workflow options, but systematic reviews have not established a consistent overall retear-rate or functional advantage over knotted double-row repairs. Technique selection remains case- and system-dependent.
Can every suture tape be used with every anchor?
No. Tape width, locking mechanism, eyelet design, insertion technique, and labeled compatibility can differ. Use only combinations supported by the relevant product documentation and instructions for use.
Conclusion
Suture tape is a credible option for rotator cuff repair and has demonstrated favorable time-zero mechanics in many experimental settings. The most defensible clinical conclusion, however, is not that tape automatically heals the rotator cuff better. Available comparative studies generally report similar retear rates and functional outcomes to conventional high-strength sutures, with some newer studies identifying secondary structural or strength findings that require further confirmation.
Material selection should therefore be made within the context of tear pattern, tendon and bone quality, repair configuration, compatible anchors and instruments, surgeon experience, and the applicable postoperative protocol.
References
- Liu RW, Lam PH, Shepherd HM, Murrell GAC. Tape Versus Suture in Arthroscopic Rotator Cuff Repair: Biomechanical Analysis and Assessment of Failure Rates at 6 Months. Orthop J Sports Med. 2017;5(4):2325967117701212.
- Huntington L, et al. The use of suture-tape and suture-wire in arthroscopic rotator cuff repair: A comparative biomechanics study. Injury. 2018;49(11):2047–2052.
- Boksh K, Haque A, Sharma A, Divall P, Singh H. Use of Suture Tapes Versus Conventional Sutures for Arthroscopic Rotator Cuff Repairs: A Systematic Review and Meta-analysis. Am J Sports Med. 2022;50(1):264–272.
- Borbas P, et al. High-Strength Suture Tapes Are Biomechanically Stronger Than High-Strength Sutures Used in Rotator Cuff Repair. Arthrosc Sports Med Rehabil. 2021.
- Nie S, et al. Suture tape anchors for enhancing healing in rotator cuff tears: a retrospective cohort study. BMC Musculoskelet Disord. 2025;26:470.
- Types of Retears After Knot-tying and Knotless Suture Bridge Rotator Cuff Repair: A Systematic Review and Meta-analysis. 2022.
- Figueiredo JAF, et al. Knotted or knotless double-row rotator cuff repair retear rates: a systematic review and meta-analysis. JSES Rev Rep Tech. 2023.
Medical and regulatory notice: This article is intended for professional education and general product-evaluation purposes. It does not provide a diagnosis, treatment recommendation, surgical instruction, or guarantee of clinical outcome. Product availability, indications, regulatory status, and instructions for use vary by market. Clinical decisions must be made by qualified healthcare professionals using patient-specific judgment and the applicable product documentation.
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