Medartis | Arthrodesis System 2.0/2.3, 2.5

Designed to perform.

Freedom from pain, mobility and stability are basic prerequisites for a trouble-free hand function. The APTUS Wrist Arthrodesis System 2.0/2.3, 2.5 provides a comprehensive portfolio of plates to meet individual patient needs.

Comprehensive system

The APTUS Wrist Arthrodesis System 2.0/2.3, 2.5 offers a comprehensive portfolio of plates for meeting the individual needs of patients.

Wrist fusion plates

Fusion of radiocarpal and midcarpal joint without arthrodesis of the carpometacarpal joint. Therefore, physiological motion in the carpometacarpal joint is maintained.

Four corner fusion plates

Midcarpal arthrodesis through compression and angular stable locking.

TriLock

TriLock locking technology provides multidirectional and angular stable locking of the screw in the plate.

Treatment Concept

The system includes specifically developed plates for four-corner fusion (4CF) and fusion of the scaphoid, trapezium and trapezoid (STT). Plates are also available for radioscapholunate fusion (RSL) and for total wrist fusion (TWF), supplemented by wrist fusion plates (WF) that avoid fusion of the carpometacarpal joint.

Carpal Fusion (4CF, STT)

RSL Fusion

Wrist Fusion

Total Wrist Fusion

For further information on the implants. Surgical Technique

2.0/2.3 TriLock Four Corner Fusion Plates

Highlights

Specifically developed plates for fusion of capitate, hamate, triquetrum and lunate.
Compression and stable fixation of the carpal bones.
Inner screw holes for compression of the carpal bones being fused using cortical screws (optional for small 4CF plate).
Outer screw holes for angular stable fixation using TriLock screws.
Concave shape of the plate and reamers provide minimal bone removal and easy handling without intraoperative tilting of the plates.

Features

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions

HexaDrive

Simplified screw pick-up due to self-holding technology

Rounded edges

Rounded edges for soft tissue protection

Dimensions

Dimensions of the plate

2.0/2.3 TriLock STT Fusion Plate

Highlights

Specifically developed plate for fusion of scaphoid, trapezium and trapezoid (STT).
Compression and stable fixation of the carpal bones.
Screw holes for compression of the carpal bones being fused using cortical screws or for angular stable fixation using TriLock screws.
Concave shape of the plate and the reamers provides minimal bone removal and easy handling without intraoperative tilting of the plates.

Features

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions

HexaDrive

Simplified screw pick-up due to self-holding technology

Rounded edges

Rounded edges for soft tissue protection

For further information on the implants. Surgical Technique

2.5 TriLock RSL Fusion Plates, Volar

Highlights

Volar plates for fusion of radius, scaphoid and lunate (RSL).
Physiological motion in the midcarpal joint is maintained.
Oblong hole for variable plate positioning and to facilitate axial compression.

Features

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions.

HexaDrive

Simplified screw pick-up due to patented self-holding technology.

Oblong hole

Oblong hole for minor plate adjustments.

Rounded edges

Rounded edges for soft tissue protection.

Bendable

Plates can be bent with specific plate bending pliers

2.5 TriLock RSL Fusion Plates, Dorsal

WebGL RSL Fusion Plates, Dorsal

Highlights

Dorsal plates for fusion of radius, scaphoid and lunate (RSL).
Physiological motion in the midcarpal joint is maintained.
Oblong hole for variable plate positioning and to facilitate axial compression.

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions

HexaDrive

Simplified screw pick-up due to self-holding technology

Oblong hole

Oblong hole for minor plate adjustments

Rounded edges

Rounded edges for soft tissue protection

Bendable

Plates can be bent with specific plate bending pliers

For further information on the implants. Surgical Technique

2.5 TriLock Wrist Fusion Plates (fusion without arthrodesis of the carpometacarpal joint).

WebGl Wrist Fusion Plates (fusion without arthrodesis of the carpometacarpal joint)

Highlights

Physiological motion in the carpometacarpal joint is maintained.
Plates with long or short bend to accommodate different patient anatomies.
Double-shaft design provides high rotational stability.

Features

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions.

HexaDrive

Simplified screw pick-up due to patented self-holding technology.

Oblong hole

Oblong hole for minor plate adjustments.

Rounded edges

Rounded edges for soft tissue protection.

Bendable

Plates can be bent with specific plate bending pliers

2.5 TriLock Wrist Fusion Plates (radiocapitate wrist arthrodesis).

WebGl Wrist Fusion Plates (radiocapitate wrist arthrodesis)

Highlights

Fusion of the intermediate column – especially following proximal row carpectomy – without arthrodesis of the carpometacarpal joint.
Physiological motion in the carpometacarpal joint is maintained.
Plates with long or short bend to accommodate different patient anatomies.

Features

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions.

HexaDrive

Simplified screw pick-up due to patented self-holding technology.

Oblong hole

Oblong hole for minor plate adjustments.

Rounded edges

Rounded edges for soft tissue protection.

For further information on the implants. Surgical Technique

2.5 TriLock Total Wrist Fusion Plates

WebGl Total Wrist Fusion

Highlights

Plates with long or short bend to accommodate different patient anatomies.
Straight plate for fusion in slight flexion, for example in rheumatoid arthritis.
Offset screw arrangement reduces the risk of axial bone splitting in the metacarpal area.

Features

TriLock

Multidirectional locking, screws can pivot freely by ± 15° in all directions.

HexaDrive

Simplified screw pick-up due to patented self-holding technology.

Preangled holes

Preangled screw holes facilitate less invasive plate placement and fixation.

Oblong hole

Oblong hole for minor plate adjustments.

Rounded edges

Rounded edges for soft tissue protection.

Screws

Non-locking
2.0 Cortical Screws,
HexaDrive 6

Locking
2.0 TriLock Screws,
HexaDrive 6

Non-locking
2.5 Cortical Screws,
HexaDrive 7

Locking
2.5 TriLock Screws,
HexaDrive 7

The science behind.

Low-profile locking-plate vs. the conventional AO system: early comparative results in wrist arthrodesis. J F Hernekamp, P Schönle, T Kremer, U Kneser, B Bickert 2020 Arch Orthop Trauma Surg

This study compared the early functional and clinical outcomes between total wrist arthrodesis with the APTUS 2.5 TriLock Wrist Fusion Plate and a a dorsal plate reaching from the distal radius to the third metacarpal. The authors conclude that:"The new APTUS wrist fusion plate enables good osseous stability, and the low-profile design may decrease soft tissue affection. Furthermore, the CMCJ-3 remains entirely unaffected, which may decrease CMCJ-related problems. Surprisingly, this leads to an increased range of motion of the CMC-joints compared to the contralateral side, which may be an asset for long-term hand function after wrist fusion.

Wrist Arthrodesis Using the Medartis Carpometacarpal Joint Sparing Plate. Briotti J, Wilson S, Goh G, Lawson-Smith M. 2022 Hand (N Y)

The objective of this study was to determine the long-term clinical and radiological outcomes of wrist arthrodesis with a CMCJ sparing wrist plate. The authors of the study find that:" the Medartis wrist arthrodesis plate is a newer design that is a well-tolerated option for wrist arthrodesis based on clinical assessment, functional hand assessment, and patient satisfaction, when compared with the existing literature on traditional plating systems."

Read More Briotti et al 2024 Carpometacarpal Joint Sparing Wrist Fusion – Literature Review

Four-corner arthrodesis with a dorsal locking plate: 4-9-year follow-up. Athlani L, Sabau S, Pauchard N, Dap F, Dautel G. 2020 J Hand Surg Eur

Athlani et al. report on the outcomes of four-corner arthrodesis for advanced wrist collapse with the APTUS 2.0/2.3 TriLock four-corner fusion plate. It concludes that: "The outcomes appear not remarkably different from those reported using other fixation methods other than an apparent earlier return to activities."