Resolve Modular Revision Stem | United Orthopedic Corporation

Product Overview

The Cellbrick™ Knee Spacer is intended for use in two-stage revision total knee arthroplasty for the management of periprosthetic joint infection (PJI). Its articulating design is intended to maintain joint space and limb length following implant removal, and to support joint mobility during the interim period.

Fenestrated Spacer Core

The fenestrated structure is designed to accommodate antibiotic-loaded bone cement, allowing for local antibiotic delivery. An optional intramedullary rod may be used to extend application into the femoral or tibial canal.

Biomechanical & Biological Safety

The UHMWPE femoral and tibial spacer components are designed to provide articulation and structural support during implantation, while helping to maintain soft tissue tension and joint function.

Product Features

Femoral Spacer

Universal design with a symmetrical configuration to fit both left and right knees.

Prefabricated cement carrier with a 1:1 AP-to-ML ratio designed to accommodate bone cement.

UHMWPE spacer core with clinically established biocompatibility and safety for use in orthopedic applications.

Fenestrated design providing space to accommodate bone cement for local application.

Intercondylar slot designed to preserve a passage for optional canal rod insertion.

Tibial Spacer

1 mm diameter increments allow for precise selection of the appropriate size, while smaller diameters are available to accommodate patients with a narrow femoral canal.

Ø11~28 mm for 140 mm Taper Stem

Ø12~28 mm for 180 mm Taper Stem

The distal stem and the proximal component are connected via a verified taper junction.

The distal beveled tip in the 180 mm stem is designed to reduce interference with the anterior cortex to minimize the risk of thigh pain.

The tapered shape is designed to enhance axial stability and minimize stem subsidence, while the eight splined fins are designed to provide rotational stability.

Grit-blasted surface finish is designed to allow bone on-growth and long-term fixation.

Clothespin Stem

Interlocking Stem

Interlocking screw fixation is designed to provide additional axial and rotational stability, and prevent stem subsidence.

The anterior bowing of the curved long stem is designed to better match the anatomical curvature of the femoral canal while providing three-surface fixation.

The distal slot is designed to reduce stem tip stiffness, improve compatibility with anterior femoral bowing, and minimize thigh pain.

The 180 mm length is available and designed to provide diaphyseal fixation.

Titanium Plasma Spray with HA coating is designed to promote osteo-conductivity and biological fixation.

Stem lengths are available in 220 mm and 300 mm, with the longer stems allowing the management of more severe bone defects through extended distal fixation.

The polished bullet tip is designed to facilitate insertion and minimize potential thigh pain.

Optimized Instrument

Target Device supports interlocking screw preparation

Radiolucent carbon fiber allows clear intraoperative C-arm imaging
Available in left and right versions
Multi-size compatibility helps reduce inventory requirements

Depth markings on the instrument facilitate the restoration of the femoral head center height and enable precise confirmation of reaming depth and implant insertion positions.

Product Overview

Product Features

Optimized Instrument

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Resolve Modular Revision Stem Brochure

Resolve Modular Revision Stem Surgical Technique Guide