IBS-B MIS is a system of cannulated titanium screws with a 45° bevelled head, designed to sit flush with the cortex when inserted at an angle, as in minimally invasive bunion and Akin osteotomies. Compression and fully threaded screws are available in 3.3, 4.0 and 6.5 mm, with a 6.5 mm Compression PLUS version.
Features
- 45° bevelled head to limit screw prominence after angled insertion.
- Compression (differential pitch) and fully threaded screws.
- 3.3 mm (16 to 60 mm), 4.0 mm (20 to 60 mm) and 6.5 mm (30 to 110 mm); Compression PLUS 6.5 mm (60 to 110 mm).
- Cannulated, self-drilling and self-tapping, with three angled cutting edges and distal cutting flutes.
- Self-drilling head with inter-thread notches.
- Torx drive: T10, T15 and T25.
- Titanium alloy, supplied sterile and individually packed.
- Compatible with NeoMIS single-use instruments and percutaneous burrs.
Indications
Fixation of arthrodesis, osteotomies or fractures of long or short bones of the upper and lower limbs, appropriate for the size of the device.
Applications include bunion correction, Lapidus, Akin and MTP fusions; midfoot arthrodesis and osteotomy fixation; and calcaneal osteotomy fixation and subtalar fusion.
Contraindications
Current or past systemic, acute or chronic inflammation; active infection; sensitivity or allergy to the implant materials.
Indications, contraindications, warnings and precautions are listed in the instructions for use (IFU).
How it works
Compression screws generate compression through different thread pitches at the leading and trailing ends; fully threaded screws hold position without compression.
The head has self-drilling, self-tapping cutting flutes so it countersinks as it is inserted, and inter-thread notches to reduce stress between the head and the cortex in the final turns. Laser lines on the bevelled screwdrivers show the orientation of the bevel, so the head can be seated flush with the bone.

Instrument sets
- Forefoot set for 3.3 and 4.0 mm screws, and hindfoot set for 6.5 mm screws, each reusable with a cover.
- Each set: screwdriver handle, bevelled and non-bevelled drivers, K-wire guide, drill guide, soft-tissue protector, measurer, countersinks, drills and K-wires.
- Compatible with NeoMIS® single-use instruments and percutaneous burrs (sold separately).

Sizes and ordering
3.3 and 4.0 mm screw codes and the forefoot/midfoot instruments are from the IBS-B MIS surgical technique (Rev B, 03/2026), which replaces the S33 and S40 codes in CONMED's CE-market catalogue (2025); the 6.5 mm screws and the other instruments are from the catalogue. Implants are titanium, supplied sterile and individually packed.
Screws, Ø 3.3 mm (T10)23 items
| Ref. compression | Ref. fully threaded | Length |
|---|---|---|
| S34 ST716 | S34 ST816 | 16 mm |
| S34 ST718 | S34 ST818 | 18 mm |
| S34 ST720 | S34 ST820 | 20 mm |
| S34 ST722 | S34 ST822 | 22 mm |
| S34 ST724 | S34 ST824 | 24 mm |
| S34 ST726 | S34 ST826 | 26 mm |
| S34 ST728 | S34 ST828 | 28 mm |
| S34 ST730 | S34 ST830 | 30 mm |
| S34 ST732 | S34 ST832 | 32 mm |
| S34 ST734 | S34 ST834 | 34 mm |
| S34 ST736 | S34 ST836 | 36 mm |
| S34 ST738 | S34 ST838 | 38 mm |
| S34 ST740 | S34 ST840 | 40 mm |
| S34 ST742 | S34 ST842 | 42 mm |
| S34 ST744 | S34 ST844 | 44 mm |
| S34 ST746 | S34 ST846 | 46 mm |
| S34 ST748 | S34 ST848 | 48 mm |
| S34 ST750 | S34 ST850 | 50 mm |
| S34 ST752 | S34 ST852 | 52 mm |
| S34 ST754 | S34 ST854 | 54 mm |
| S34 ST756 | S34 ST856 | 56 mm |
| S34 ST758 | S34 ST858 | 58 mm |
| S34 ST760 | S34 ST860 | 60 mm |
Screws, Ø 4.0 mm (T15)21 items
| Ref. compression | Ref. fully threaded | Length |
|---|---|---|
| S41 ST720 | S41 ST820 | 20 mm |
| S41 ST722 | S41 ST822 | 22 mm |
| S41 ST724 | S41 ST824 | 24 mm |
| S41 ST726 | S41 ST826 | 26 mm |
| S41 ST728 | S41 ST828 | 28 mm |
| S41 ST730 | S41 ST830 | 30 mm |
| S41 ST732 | S41 ST832 | 32 mm |
| S41 ST734 | S41 ST834 | 34 mm |
| S41 ST736 | S41 ST836 | 36 mm |
| S41 ST738 | S41 ST838 | 38 mm |
| S41 ST740 | S41 ST840 | 40 mm |
| S41 ST742 | S41 ST842 | 42 mm |
| S41 ST744 | S41 ST844 | 44 mm |
| S41 ST746 | S41 ST846 | 46 mm |
| S41 ST748 | S41 ST848 | 48 mm |
| S41 ST750 | S41 ST850 | 50 mm |
| S41 ST752 | S41 ST852 | 52 mm |
| S41 ST754 | S41 ST854 | 54 mm |
| S41 ST756 | S41 ST856 | 56 mm |
| S41 ST758 | S41 ST858 | 58 mm |
| S41 ST760 | S41 ST860 | 60 mm |
Screws, Ø 6.5 mm (T25)17 items
| Ref. compression | Ref. neutralisation | Length |
|---|---|---|
| S67 ST130 | S67 ST230 | 30 mm |
| S67 ST135 | S67 ST235 | 35 mm |
| S67 ST140 | S67 ST240 | 40 mm |
| S67 ST145 | S67 ST245 | 45 mm |
| S67 ST150 | S67 ST250 | 50 mm |
| S67 ST155 | S67 ST255 | 55 mm |
| S67 ST160 | S67 ST260 | 60 mm |
| S67 ST165 | S67 ST265 | 65 mm |
| S67 ST170 | S67 ST270 | 70 mm |
| S67 ST175 | S67 ST275 | 75 mm |
| S67 ST180 | S67 ST280 | 80 mm |
| S67 ST185 | S67 ST285 | 85 mm |
| S67 ST190 | S67 ST290 | 90 mm |
| S67 ST195 | S67 ST295 | 95 mm |
| S67 ST300 | S67 ST400 | 100 mm |
| S67 ST305 | S67 ST405 | 105 mm |
| S67 ST310 | S67 ST410 | 110 mm |
Compression PLUS screws, Ø 6.5 mm (30 mm distal thread)11 items
| Ref. | Length |
|---|---|
| S67 ST560 | 60 mm |
| S67 ST565 | 65 mm |
| S67 ST570 | 70 mm |
| S67 ST575 | 75 mm |
| S67 ST580 | 80 mm |
| S67 ST585 | 85 mm |
| S67 ST590 | 90 mm |
| S67 ST595 | 95 mm |
| S67 ST600 | 100 mm |
| S67 ST605 | 105 mm |
| S67 ST610 | 110 mm |
Instruments, 3.3 and 4.0 mm screws15 items
| Ref. | Description |
|---|---|
| G01 N0001 | IBS-B MIS forefoot/midfoot instrument tray |
| G02 20021 | NeoMIS sterile single-use instrument kit |
| P06 S0711 | Lag screw countersink, Ø 3.0/4.0 mm, single-use, sterile |
| C01 N2101 | K-wire Ø 1.4 mm, 130 mm (for 3.3 mm screws) |
| C01 N2111 | K-wire Ø 1.6 mm, 130 mm (for 4.0 mm screws) |
| G01 N0071 | Drill for Ø 3.3 mm screws |
| G01 N0072 | Drill for Ø 4.0 mm screws |
| C01 N2102 | K-wire Ø 1.4 mm, 200 mm, non-sterile |
| C01 N2121 | K-wire Ø 1.6 mm, 200 mm, non-sterile |
| G01 N0061 | Countersink for Ø 3.3 mm screws |
| G01 N0062 | Countersink for Ø 4.0 mm screws |
| G01 N0084 | Bevelled screwdriver T10, AO attachment |
| G01 N0085 | Bevelled screwdriver T15, AO attachment |
| G01 N0091 | Non-bevelled screwdriver T10, AO attachment |
| G01 N0092 | Non-bevelled screwdriver T15, AO attachment |
Instruments, 6.5 mm screws3 items
| Ref. | Description |
|---|---|
| C01 N2131 | K-wire Ø 2.0 mm, 200 mm |
| G01 N0063 | Countersink, Ø 6.5 mm screws |
| G01 N0093 | Non-bevelled screwdriver T25, small Hudson attachment |
Codes and sizes are taken from the manufacturer's marketing literature and may change. For current information, check the ConMed website or the instructions for use before ordering.
Surgical Technique
IBS-B MIS Screw System (CONMED)
Product information
Which K-wire goes with each screw?
1.4 mm for 3.3 mm screws, 1.6 mm for 4.0 mm screws and 2.0 mm for 6.5 mm screws.
What is the Compression PLUS screw?
A 6.5 mm compression screw with a longer, 30 mm distal thread, in lengths from 60 to 110 mm.
How are the screws supplied?
Terminally sterile and individually packed.
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