Polytetrafluoroethylene (PTFE) suture vs fiberwire and polypropylene in flexor tendon repair

Polykandriotis, Elias; Ruppe, Florian; Niederkorn, Miriam; Polykandriotis, Ektor; Bräuer, Lars; Horch, Raymund E.; Arkudas, Andreas; Grüner, Jasmin S

doi:10.1007/s00402-021-03899-9

Cited by 4 publications

(3 citation statements)

References 30 publications

(35 reference statements)

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“…According to Naleway et al, most published reports on the tensile behavior of various sutures only focus on breaking force, and detailed reports comparing other important tensile properties, such as failure elongation, failure stress, failure strain, modulus, and full stress–strain curves across suture materials, are quite limited [ 9 ]. Most researchers agree that simple knotting alone influences materials that may differ significantly in their tensile strengths and elastic/plastic deformation characteristics, but can still display comparable elongations at failure [ 6 ]. Von Fraunhofer et al [ 10 ] described that all sutures in their study showed decreased tensile strength and elongation at failure when knotted.…”

Section: Discussionmentioning

confidence: 99%

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Individualized Wound Closure—Mechanical Properties of Suture Materials

Polykandriotis

Daenicke

Bolat³

et al. 2022

JPM

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Wound closure is a key element of any procedure, especially aesthetic and reconstructive plastic surgery. Therefore, over the last decades, several devices have been developed in order to assist surgeons in achieving better results while saving valuable time. In this work, we give a concise review of the literature and present a biomechanical study of different suturing materials under mechanical load mimicking handling in the operating theatre. Nine different suture products, all of the same USP size (4-0), were subjected to a standardized crushing load by means of a needle holder. All materials were subjected to 0, 1, 3 and 5 crushing load cycles, respectively. The linear tensile strength was measured by means of a universal testing device. Attenuation of tensile strength was evaluated between materials and between crush cycles. In the pooled analysis, the linear tensile strength of the suture materials deteriorated significantly with every cycle (p < 0.0001). The suture materials displayed different initial tensile strengths (in descending order: polyglecaprone, polyglactin, polydioxanone, polyamid, polypropylene). In comparison, materials performed variably in terms of resistance to crush loading. The findings were statistically significant. The reconstructive surgeon has to be flexible and tailor wound closure techniques and materials to the individual patient, procedure and tissue demands; therefore, profound knowledge of the physical properties of the suture strands used is of paramount importance. The crushing load on suture materials during surgery can be detrimental for initial and long-term wound repair strength. As well as the standard wound closure methods (sutures, staples and adhesive strips), there are promising novel devices.

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Section: Discussionmentioning

confidence: 99%

“…For the measurement, a 100 N measuring component was mounted with a velocity setting of 300 mm/min. This method has been validated before [ 5 , 6 ]. The force required to evoke tear of the material was recorded.…”

Section: Methodsmentioning

confidence: 99%

Individualized Wound Closure—Mechanical Properties of Suture Materials

Polykandriotis

Daenicke

Bolat³

et al. 2022

JPM

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“…Finally, we also plan to refine, optimize, and combine the developed S 2 sutures with our recently developed flexible surgical endoscopic robots for in-vivo experiments on a living animal. Our developed S 2 sutures will also be a potential candidate for other surgical applications such as abdominal wound closure, hernia repair, sternal closure, or orthopedic procedures [49][50][51][52] .…”

Section: Discussionmentioning

confidence: 99%

Smart surgical sutures using soft artificial muscles

Phan

Hoang

Thai

et al. 2021

Sci Rep

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Wound closure with surgical sutures is a critical challenge for flexible endoscopic surgeries. Substantial efforts have been introduced to develop functional and smart surgical sutures to either monitor wound conditions or ease the complexity of knot tying. Although research interests in smart sutures by soft robotic technologies have emerged for years, it is challenging to develop a soft robotic structure that possesses a similar physical structure as conventional sutures while offering a self-tightening knot or anchor to close the wound. This paper introduces a new concept of smart sutures that can be programmed to achieve desired and uniform tension distribution while offering self-tightening knots or automatically deploying secured anchors. The core technology is a soft hydraulic artificial muscle that can be elongated and contracted under applied fluid pressure. Each suture is equipped with a pressure locking mechanism to hold its temporary elongated state and to induce self-shrinking ability. The puncturing and holding force for the smart sutures with anchors are examined. Ex-vivo experiments on fresh porcine stomach and colon demonstrate the usefulness of the new smart sutures. The new approaches are expected to pave the way for the further development of smart sutures that will benefit research, training, and commercialization in the surgical field.

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