Steel Monofilament
High-strength surgical stainless steel suture for maximum stability in sternal closure, orthopaedics, and abdominal wall reconstruction
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Superior Tensile Strength
As the strongest suture material available, surgical stainless steel offers unparalleled tensile strength. The iron, nickel, and chromium alloy guarantees permanent stability – essential for high-stress areas such as the sternum and abdominal wall.
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Minimal Tissue Reaction
The smooth monofilament surface, without coating, completely prevents capillary action. The biocompatible stainless steel alloy causes minimal tissue reaction and allows for unrestricted radiological diagnostics.
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Ductile & Malleable
Despite its enormous strength, steel wire can be bent and shaped. This combination of strength and deformability allows for special suturing techniques such as cerclage and individual adaptation to anatomical conditions.
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Maximum Mechanical Load Capacity
Steel wire is the suture material of choice when extreme mechanical loads are expected. In median sternotomy, sutures must withstand physiological forces during breathing, coughing, and movement – steel provides the necessary security here. In orthopaedics, its strength allows for cerclages around fractures and osteosyntheses. For abdominal wall defects and large hernias, steel secures the reconstruction even under intra-abdominal pressure. Its non-absorbable nature guarantees permanent hold without loss of strength over time.
Specialised Areas of Application
Sternal closure after sternotomy
Orthopaedics (Cerclages)
Abdominal wall closure
Hernia reconstruction
Fracture treatment
Maxillofacial surgery
High-stress tissue adaptation
Specialised Needle Configurations
⚫ External Cutting Needles (HS)
Sizes: 25-120mm (1/2 circle)
USP: 0 to 7
Packaging: 4 x 45cm or 60cm
Application: Sternum, abdominal wall, dense bone
🔹 Tapercut Needles (HRT)
Sizes: 40-54mm (1/2 circle)
USP: 3&4 to 6
Packaging: 4 x 45cm or 1 x 75cm
Application: Standard sternal closure
✂️ Cutting Needles (NH)
Sizes: 48mm (1/2 circle)
USP: 5 to 7
Packaging: 4 x 45cm
Application: Very dense tissue
🦴 Patella Set (HS 120mm)
Size: 120mm straight
USP: 7
Length: 60cm
Application: Patellar tendon surgery, large orthopaedic procedures
Product Features & Specialties
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Stainless Steel Alloy
Precision alloy of iron, nickel, and chromium according to highest medical standards – corrosion-resistant and MRI-compatible
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Large Needle Sizes
Robust needles from 25-120mm for penetration through bone and very dense tissue – specially reinforced for maximum stability
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Multipack Packaging
Standardly 4 threads of 45cm each per pack – optimised for sternal closure with typically 6-8 cerclages per patient
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Permanent Stability
No loss of strength over time – guarantees lifelong hold even under extreme mechanical stress
Packaging Information
Steel Monofilament is supplied in special multipacks that are optimally adapted to clinical application:
Standard: 4 threads of 45cm per box
Patella Set: Single pack with 60cm length
Alternative: Single thread with 75cm (HRT 54mm)
The 4-pack is ideally designed for sternal closure, where typically 6-8 cerclages are needed – ensuring sufficient reserve threads are always available.
Important Contraindications & Precautions
Cardiac and Vascular Surgery: Not suitable for intracardiac or intravascular sutures
Neurosurgery: Not recommended for the nervous system
Microsurgery: Too coarse for microsurgical applications
Nickel or Chromium Allergy: Absolute contraindication in case of known metal allergies
MRI Examinations: May cause artefacts, but is MRI-safe (non-ferromagnetic)
Wire Migration: In case of insufficient fixation, wire fracture can lead to migration
Skin Perforation: If superficially located, wire may perforate the skin
Risk of Infection: In case of deep infection, material removal is often required
Technical Specifications
Manufacturer
SMI
Material
Synthetic (Metallic)
Type
Monofilament
Composition
Iron, Nickel, and Chromium Alloy (Surgical Stainless Steel)
Coating
None
Colour
Metallic (Silver)
Tissue Reaction
Minimal
Absorption
Non-absorbable – permanent
Special Properties
Ductile, malleable, highest tensile strength
USP Size Range
1 to 7
Packaging
Standardly 4 x 45cm per boxPatella Set: 60cm individuallyAlternatively: 1 x 75cm
Sterilisation
Gamma radiation, hermetically sealed
Unrivalled Strength for Critical Procedures
Steel Monofilament by SMI is the suture material of choice when maximum mechanical load capacity is paramount. In thoracic surgery after sternotomy, in complex abdominal wall reconstructions, and in orthopaedics, surgical stainless steel offers a level of safety that synthetic materials cannot achieve. The special stainless steel alloy combines extreme tensile strength with good handling – wires can be bent and shaped without losing their stability. With a focused range of robust needles in USP 1 to 7, Steel Monofilament covers all applications where permanent, high-strength sutures are essential. Trust in steel – when it truly matters.
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