Metal artefacts severely hamper magnetic resonance imaging of the rotator cuff tendons after rotator cuff repair with titanium suture anchors

Schröder, F; Veld, Rianne Huis In 't; Otter, Lydia A. den; Raak, Sjoerd van; Haken, Bernard ten; Vochteloo, Anne J. H.

doi:10.1177/1758573217710833

Cited by 4 publications

(7 citation statements)

References 24 publications

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“…Stainless steel SAs are encapsulated by an inflammatory cell-rich fibrous membrane, which impedes the osteoblasts from binding to the surface [4], whereas Ti forms a layer of Ca and phosphate, which facilitate osteointegration [5]. Although metallic SAs provide a rigid fixation and have been used for a long time, they have the disadvantage of permanent metal artifact interference with diagnostic imaging [6]. Biodegradable SAs, such as poly-L-lactic acid, is radiolucent; however, inflammatory reactions can develop, leading to osteolysis [7], interosseous cyst formation, and the bone not being replaced after the implants degrade [2].…”

Section: Introductionmentioning

confidence: 99%

3D-Printed Double-Helical Biodegradable Iron Suture Anchor: A Rabbit Rotator Cuff Tear Model

Liu

Chang

et al. 2022

Materials

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Suture anchors are extensively used in rotator cuff tear surgery. With the advancement of three-dimensional printing technology, biodegradable metal has been developed for orthopedic applications. This study adopted three-dimensional-printed biodegradable Fe suture anchors with double-helical threads and commercialized non-vented screw-type Ti suture anchors with a tapered tip in the experimental and control groups, respectively. The in vitro study showed that the Fe and Ti suture anchors exhibited a similar ultimate failure load in 20-pound-per-cubic-foot polyurethane foam blocks and rabbit bone. In static immersion tests, the corrosion rate of Fe suture anchors was 0.049 ± 0.002 mm/year. The in vivo study was performed on New Zealand white rabbits and SAs were employed to reattach the ruptured supraspinatus tendon. The in vivo ultimate failure load of the Fe suture anchors was superior to that of the Ti suture anchors at 6 weeks. Micro-computed tomography showed that the bone volume fraction and bone surface density in the Fe suture anchors group 2 and 6 weeks after surgery were superior, and the histology confirmed that the increased bone volume around the anchor was attributable to mineralized osteocytes. The three-dimensional-printed Fe suture anchors outperformed the currently used Ti suture anchors.

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Section: Introductionmentioning

confidence: 99%

3D-Printed Double-Helical Biodegradable Iron Suture Anchor: A Rabbit Rotator Cuff Tear Model

Liu

Chang

et al. 2022

Materials

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“…When the cuff could be assessed, the diagnostic sensitivity was 84%, with poor interobserver reliability across surgeons. 15 Overall, the sensitivity of MRI in diagnosing fullthickness rotator cuff retear can be as high as 91%, although specificity is much lower (25%). 16 An example of identifying a cuff retear on MRI is shown in Figure 1.…”

Section: Magnetic Resonance Imaging (Mri)mentioning

confidence: 94%

“…In 36% of cuff repairs with metal anchors, surgeons were unable to assess the cuff on MRI. When the cuff could be assessed, the diagnostic sensitivity was 84%, with poor interobserver reliability across surgeons 15 . Overall, the sensitivity of MRI in diagnosing full-thickness rotator cuff retear can be as high as 91%, although specificity is much lower (25%) 16 .…”

Section: Workup Of Suspected Failed Repairmentioning

confidence: 99%

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My Approach to Failed Rotator Cuff Repair

Chan,

Remedios,

Wong

2023

Sports Medicine and Arthroscopy Review

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Failed rotator cuff repairs pose several challenges due to the high incidence rate, complexity, and range of symptoms. We propose an overview for assessing and treating failed rotator cuff repairs. For active young patients, attempt revision repair with patch augmentation if possible. When anatomic revision is not viable, but muscle is retained, consider partial repair with interposition bridging. Isolated, irreparable supraspinatus tears may benefit from superior capsule reconstruction. Tendon transfer is suitable for patients with significant atrophy and multiple irreparable cuff tears. Low-demand elderly patients or those with substantial glenohumeral arthritis may consider reverse total shoulder arthroplasty if conservative management fails. There are a variety of reported outcomes in the literature but long-term studies with larger cohorts are needed to improve the management of failed rotator cuff repair.

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“…12 Furthermore, the lack of metal components in all-suture anchors enables detailed postoperative follow-up with magnetic resonance imaging (MRI). Schröder et al 34 reported that the use of titanium suture anchors produced metal artifacts on MRI that prevented the accurate diagnosis of rotator cuff retears in one-third of their patients.…”

mentioning

confidence: 99%

Biomechanical Evaluation of Proximal Hamstring Repair: All-Suture Anchor Versus Titanium Suture Anchor

Otto

DiCosmo

Baldino

et al. 2020

Orthopaedic Journal of Sports Medicine

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Background: Proximal hamstring avulsions are severe tendon injuries and are commonly sports-related. Open and endoscopic techniques as well as different anchor configurations have already been described for proximal hamstring repair. Novel all-suture anchors have been developed to provide decreased bone loss during placement and reduced occupied bone volume when compared with titanium suture anchors. Hypothesis: Complete proximal hamstring avulsions repaired with all-suture anchors will demonstrate equal load to failure and comparable displacement under cyclic loading when compared with titanium suture anchors. Study Design: Controlled laboratory study. Methods: Complete proximal hamstring avulsions were created in 18 paired cadaveric specimens (mean ± SD age, 63.0 ± 10.4 years). Either all-suture anchors or titanium suture anchors were used for repair. Cyclic loading from 10 to 125 N at 1 Hz was performed for 1500 cycles with a material testing machine. Displacement was assessed along anterior and posterior aspects of the tendon repair with optical tracking. Specimens were loaded to failure at a rate of 120 mm/min. Displacement, load to failure, and repair construct stiffness were compared between matched pairs with the Wilcoxon signed-rank test. Correlations were determined by Spearman rho analysis. Results: The all-suture anchors showed significantly higher load-to-failure values when compared with the titanium anchor repairs (799.64 ± 257.1 vs 573.27 ± 89.9 N; P = .008). There was no significant difference in displacement between all-suture anchors and titanium suture anchors at the anterior aspect (6.60 ± 2.2 vs 5.49 ± 1.1 mm; P = .26) or posterior aspect (5.87 ± 2.08 vs 5.23 ± 1.37 mm; P = .678) of the repaired hamstring tendons. Conclusion: All-suture anchors demonstrated similar displacement and superior load to failure when compared with titanium suture anchors. Clinical Relevance: The results of this study suggest that all-suture anchors are an equivalent alternative to titanium suture anchors for proximal hamstring avulsion repair.

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Metal artefacts severely hamper magnetic resonance imaging of the rotator cuff tendons after rotator cuff repair with titanium suture anchors

Abstract: Metal artefacts prevented accurate diagnosis from MRI scans of rotator cuff retear in 36% of the patients studied.

Cited by 4 publications

References 24 publications

3D-Printed Double-Helical Biodegradable Iron Suture Anchor: A Rabbit Rotator Cuff Tear Model

3D-Printed Double-Helical Biodegradable Iron Suture Anchor: A Rabbit Rotator Cuff Tear Model

My Approach to Failed Rotator Cuff Repair

Biomechanical Evaluation of Proximal Hamstring Repair: All-Suture Anchor Versus Titanium Suture Anchor

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