Inion - Products - CompressOn™ Headless Compression Screw

Inion CompressOn™ Headless Cannulated Compression Screw

Inion CompressOn™ is a bioabsorbable headless compression screw. The screw family contains a wide range of sizes: Ø 2.7 mm–Ø 6.0 mm, lengths 12 mm–90 mm. All Inion CompressOn™ screws are cannulated. These are a few reasons why the Inion CompressOn™ screws are really versatile and easy-to-use products that can be used in a wide range of indications in the areas of upper and lower extremities. These resorbable screws are also strong and safe. The material of Inion CompressOn™ is oriented resorbable copolymer of LPLA/DLPLA. Bioresorption takes place within two to four years. Specific indications for use may vary between market areas. Please review the electronic Instructions for Use at ifu.inion.com.

Inion CompressOn™ is a CE-marked medical device (Class III), manufactured by Inion Oy. The conformity assessment was conducted by BSI The Netherlands (CE 2797).

Clinical Benefits

The bioabsorbable Inion CompressOn™ implants provide several clinical benefits to trauma and reconstructive orthopaedic procedures:

Bone healing: maintenance of accurate alignment of
- bone fractures
- osteotomies
- arthrodesis
- bone grafts with appropriate additional immobilization

Avoidance of removal surgery, reducing patient trauma and cost
No permanent implant left in the body reducing risk of implant migration and stress shielding

Additional Benefits

The bioabsorbable Inion CompressOn™ implants provide additional benefits due to their technical features and material composition:

Resorbs in 2–4 years
Predictable degradation progressively loads the bone to aid bone regeneration. The Inion CompressOn™ implants maintain adequate strength during the healing period of fracture, osteotomy or other indicated procedure.
No long-term implant palpation, visibility, temperature sensitivity
No imaging interference: no artifact is created on X-ray, computer tomography (CT) and magnetic resonance imaging (MRI) by the material
No release or accumulation of metal debris, nor metal-induced allergies/sensitization
Sterile-packaged implants reduce the risk of cross-contamination and overall infection risk
Easier revision procedures: if re-operation is needed, the previously inserted Inion CompressOn™ implants have either absorbed, or can simply be drilled through
MR Safe: the Inion CompressOn™ screws are entirely made of non-conductive and non-ferrous material components
Instant final fracture reduction and constant compression for optimal bone fixation
Headless screw design enters completely inside the bone
- to minimize bone damage, no countersinking
- to avoid soft tissue irritation

Indications

The Inion CompressOn™ products are indicated for the maintenance of alignment and fixation of bone fractures, comminuted fractures, osteotomies, arthrodeses or bone grafts (i.e., autografts or allografts) upper and lower extremities in the presence of appropriate additional immobilization (e.g., rigid fixation implants, cast or brace).

Clinical References

Mini-Open Lateral Approach Trochleoplasty for Patellar Dislocation. Sillanpää PJ. (2025), Video Journal of Sports Medicine. 2025;5(5). doi:10.1177/26350254251388503

Product Information Materials

▶ Surgical Technique videos

Inion CompressOn™ Flyer (PDF)

Inion CompressOn™ Tray Flyer (PDF)

Inion^® CompressOn™ Instruments

Inion CompressOn™ Threaded K-wire

The Inion CompressOn™ Threaded K-wire has been developed to provide enhanced control during orthopedic procedures through a retention mechanism that helps resist unintended backing out during insertion.

Designed to maintain secure engagement throughout wire advancement, the Inion CompressOn™ Threaded K-wire supports precise placement while helping reduce the need for repositioning or repeated insertion attempts. Compatible with the Inion CompressOn™ bioabsorbable headless compression screw system and standard K-wire insertion techniques, it integrates seamlessly into existing surgical workflows while preserving the versatility and simplicity of conventional K-wire fixation.

Whether used for fracture fixation, temporary stabilization, or as a guide for Inion CompressOn™ screw placement, the Threaded K-wire is engineered to support procedural efficiency and surgical confidence when precision matters most.

Key Benefits