NEPTUN Plug
Resorbable Cement Restrictor for Endoprosthetics
The NEPTUN Plug is a resorbable cement restrictor designed for use in the medullary canal during cemented endoprosthetic procedures in orthopaedics and trauma surgery. It stabilizes the bone cement application, limits uncontrolled distal migration of the cement, and enables targeted pressure build-up in the femoral shaft. This ensures even distribution of the cement within the surrounding bone bed.
The restrictor is available in diameters from 8 to 18 mm (in increments of 2 mm) and adapts flexibly to individual anatomical conditions. Made from an elastic, gelatin-based biomaterial, it dissolves at body temperature within a few days, leaving no residue. Removal is not required, even in revision surgery.
- Elastic gelatin-based biomaterial
- Resorbable within a few days at body temperature
- Proven for decades in the implantation of joint endoprostheses
- Various sizes (8–18 mm Ø, increasing in 2 mm increments) allow flexible size selection during surgery.
- No removal of the restrictor required in revision procedures
Composition
- Gelatin
- Glycerol
- Water
- Methylparahydroxybenzoate
Application with Matching Insertion Instrument
The corresponding insertion instrument enables depth-controlled placement of the cement restrictor in the medullary canal. The included set of trial olives allows determination of the canal diameter for selecting the correct restrictor size. Application is quick, reliable, and requires minimal instrumentation:
Torsten Klepzig
Chief Physician of Orthopaedics and Rheumatic Surgery | Johanniter Hospital Treuenbrietzen
NEPTUN Plug – Cement Restrictor
For many years, we at Johanniter Hospital in Treuenbrietzen have been using the resorbable NEPTUN Plug cement restrictors in orthopaedic surgeries, particularly in endoprosthetics.