At a glance
- Flexible in a wide range of compatible implants to choose from
- Anatomical design for potential bone and soft tissue preservation
- Expandable thanks to compatibility with MEGASYSTEM-C
Distal Femur Replacement
Intracondylar Prosthesis
Proximal Tibia Replacement
The Endo-Model SL Rotating and Pure Hinge Knee System was developed on the basis of decades-long experience with the Endo-Model Rotational and Hinge Knee System and the associated modular implant version Endo-Model – M.
This knee joint system is highly modular, and can therefore be employed in difficult primary and revision procedures. When it is used in combination with MEGASYSTEM-C implants, the range of indications is expanded to include treatment of revisions with large bone defects and also tumor arthroplasty.
The system incorporates biomechanical loading and anchoring principles. In combination with many years of experience gained from the use of proven implant components, this makes the system extremely reliable, thus optimizing the prospects for the surgical outcome.
For restoring the joint line in tumor and revision cases, special proximal tibial spacers and femoral segments are available.
- Flexible – wide choice of implants and a high degree of modularity.
- Adaptable – intraoperative choice between rotating and pure hinge versions (the joint components do not need to be substituted when the coupling mechanism is changed, in either primary or revision procedures).
- Integrated system – compatible interfaces between GEMINI SL and Endo-Model SL knee joint-femoral components.
- Optimized dimensions – to maximize bone conservation.
- Anatomical – valgusing alignment (6°) of the intramedullary box.
- Large “jump distance” – for more secure knee flexion. Use of the proven anti-luxation mechanism.
- Modular – optional use of cemented and cementless modular stems.
- Compatible – with MEGASYSTEM-C implants, and therefore suitable for treating serious bone defects.
Flexible
- Intraoperative changeover from rotating and pure hinge knee prosthesis with implant components in situ.
- Intraoperative flexibility because fully compatible with MEGASYSTEM-C Tumor and Revision System.
Coupling and Decoupling in the Joint Plane
- Minimal soft tissue distraction during reduction.
Anatomically Adapted
- 6° valgus from joint line.
- Tibial plateau with 8° slope to dorsal.
- Deep patellar articulating groove creates physiological patellar movement and patellar self-guidance.
Conserves Bone and Soft Tissue
- Potential for bone and soft tissue conservation.
- Coupling with only minor distraction and minimal soft tissue release.
- Optimal box dimensions conserve bone substance.
Wide Range of Stems
- Modular stems, cemented and cementless, for femur and tibia.
- In addition, cemented monoblock stem for tibia.
- Short stems for anticipated re-revisions.
Read more
Read less
- Rodolfo Capanna MD, Guido Scoccianti MD, Filippo Frenos MD, Antonio Vilardi MD, Giovanni Beltrami MD, Domenico Andrea Campanacci MD, What was the Survival on Megaprostheses in Lower Limb Reconstruction after Tumor Resection, Clin. Orthop. Relat Res. (2015) 473: 820-830
- H. Thabe, „Auswirkungen verschiedener konstruktiver Prothesenmerkmale auf Langzeitergebnisse“, Akt Rheumatol 2013;38
Further Literature
Development based on the Endo-Model® Rotational and Hinge Knee Prosthesis, which has been used with great success for many years.
- E. Engelbrecht, A. Siegel, J. Röttger, and Prof. H. W. Buchholz*
Statistics of Total Knee Replacement: Partial and Total Knee Replacement, Design St. Georg
Journal of Clinical Orthopaedics, 1976, No. 120, pp 54-64 (K3) - E. Engelbrecht, E. Nieder, E. Strickle, A. Keller
Intrakondyläre Kniegelenkendoprothese mit Rotationsmöglichkeit
- ENDO-MODELL®
CHIRURG 52: 368-375 (1981) (K1) - R. Dederich und L. Wolf
Kniegelenkprothesen-Nachuntersuchungsergebnisse
Unfallheilkunde (1982) 85:359-368 (K2) - J. Röttger, K. Heinert
Die Knieendoprothesensysteme (Schlitten- und Scharnierprinzip).
Beobachtungen und Ergebnisse nach 10 Jahren Erfahrung mit
über 3700 Operationen.
Z. Orthop. 122(1984) 818-826 (K17) - E. Nieder, E. Engelbrecht, A. Keller
Totale intrakondyläre Scharniergelenkendoprothese mit
Rotationsmöglichkeit - Endo-Modell®
Reprint from Issue 5: Orthopädische Praxis, 1987, 23. Jahresgang,
Seite 402-412 (K34) - K. Heinert, E. Engelbrecht
Total Knee Replacement - Experience with a Surface and
Total Knee Replacement: Further Development of the Model St. Georg®. 2400 Sledges and Hinges
Proceedings of the International Symposium on Total Knee Replacement, May 19-20, 1987, Nagoya, Japan Springer Verlag:, Berlin Heidelberg, New York Tokyo (1987),
pp 257-273 (K53) - E. Engelbrecht, M.D.
The Tibial Rotating Knee Prosthesis “Endo” Model: Surg. Technique
The Journal of Orthopaedic Surgical Techniques, Volume 3,
Number 2, 1987 (K36) - K. Heinert, E. Engelbrecht
Langzeitvergleich der Knie-Endoprothesensysteme St. Georg®
10-Jahres-Überlebensraten von 2236 Schlitten- und Scharnier Endoprothesen
Der Chirurg (1988) 59:755-762 (K38) - F. Madsen, P. Kjarsgaard-Andersen, M. Juhl, O. Sneppen
A Custom-Made Prosthesis for the Treatment of Supracondylar
Femoral Fractures after Total Knee Arthroplasty: Report of Four Cases
Journal of Orthopaedic Trauma, Vol. 3, No. 4, pp. 333-337,1989 (K42) - E. Nieder
Schlittenprothese, Rotationsknie und Scharnierprothese Modell
St. Georg® und Endo-Modell®. Differentialtherapie in der primären
Kniegelenkalloarthroplastik
Orthopäde (1991) 20:170-180 (K45) - G. von Förster, D. Klüber und U. Käbler
Mittel- bis langfristige Ergebnisse nach Behandlung von 118 periprothetischen
Infektionen nach Kniegelenkersatz durch einzeitige Austauschoperationen
Orthopäde(1991) 20: 244-252 (K46) - Adolph V. Lombardi, Jr, Thomas H. Mallory, Robert W. Eberle, and Joanne B. Adams
Results of Revision Total Knee Arthroplasty Using Constrained Prostheses
Seminars in Arthroplasty, Vol 7, No. 4 (October), 1996: pp 349-355 - E. Engelbrecht, E. Nieder, D. Klüber
Reconstruction of the Knee - Ten to Twenty Years of Knee Arthroplasty at
the Endo-Klinik: A Report on the Long-term Follow-up of the St. Georg®
Hinge and the Medium-term Follow-up of the Rotating Knee Endo-Model®
Springer Verlag: Tokyo, Berlin, Heidelberg, New York (1997) (K57) - E. Nieder
Revisionsalloarthroplastik des Kniegelenks
Sonderausgabe aus: Orthopädische Operationslehre, Band II/1: Becken und untere Extremität
Herausgegeben von R. Bauer, F. Kerschbaumer und S. Poisel - F. Alt, U. Sonnekalb, N. Walker
Unikondyläre Schlittenprothese versus scharniergeführte
Totalendoprothesen des Kniegelenkes
Orthopädische Praxis 1/98, 34. Jahresgang, Seite 20-24, 1998 (K61) - A. V. Lombardi, T. H. Mallory, R. E. Eberle, J. B. Adams
Rotating Hinge Prosthesis in Revision Total Knee Arthroplasty:
Indications and Results
A Reprint from Surgical Technology International VI, 1998 (K55) - E. Nieder, G.W. Baars, A. Keller
Totaler Tibia-Ersatz Endo-Modell®
Orthopädie Aktuell: Nr. 5/1998, LINK News (K60) - S. Schill, H. Thabe
Die periprothetische Knieinfektion - Therapiekonzept, Wertigkeit
und mittelfristige Ergebnisse
Aktuelle Rheumatologie, Heft 5, 24. Jahrgang, 1999, pp 153-160 (K70) - G.W. Baars
Knieendoprothetik: Das optimale Implantat für jeweilige Indikation finden
Orthopäde 2000 (Suppl1) 29: S1-2 - M. Zinck, R, Sellkau
Rotationsknieprothese Endo-Modell®- Geführter Oberflächenersatz mit Sti(e)l
Orthopäde 2000 (Suppl1) 29: S 38-42 - M. Crowa, E. Cenna, C. Olivero
Rotating knee prosthesis - Surface or hinge replacement?
Orthopäde 2000 (Suppl1) 29: S 43-44 - J-N. Argenson. J M. Aubaniac
Total Knee arthroplasty in femorotibial instability
Orthopäde 2000.29:S 45-47, Springer Verlag 2000 (K72) - M. von Knoch, R. Brocks, C. Siegmüller, G. Ribaric, L. Leupolt,
G. von Förster
Knieflexion nach Rotationsknieendoprothese
Z. Orthop 2000; 138: 66-68 (K71) - R.E. Windsor, K. Steinbrink
Controversies in Total Knee Replacement Two-stage exchange is the optimal treatment for an infected total knee replacement
Oxford University Press 2001 (K78) - A. Katzer, R. Sellckau, W. Siemssen, G. von Foerster
ENDO-Modell Rotating Knee Prosthesis: a functional analysis
J Orthopaed Traumatol (2002) 3:163-170, Springer Verlag 2002 - Thomas Nau, MD, E. Pflegerl, MD, J. Erhart, MD, and V. Vecsei, MD
Primary Total Knee Arthroplasty for Periarticular Fractures
The Journal of Arthroplasty, Vol 18, No 8, 2003 (K82) - G. Petrou, H. Petrou, C. Tilkeridis, T. Stavrakis, T. Kapetsis, N.
Kremmidas, M. Gavras
Medium-term results with a primary cemented rotating-hinge total knee replacement
A 7-TO 15-YEAR FOLLOW-UP
J Bone Joint Surg (Br), 2004; 86-B :813-17 (K84) - M.R. Utting, J.H. Newman
Customised hinged knee replacement as a salvage procedure for failed total knee arthroplasty
The Knee 11 (2004) 475-479 (K86) - Nayana Joshi, Antonio Navarro-Quilis
Is There a Place for Rotating-Hinge Arthroplasty in Knee Revision Surgery for Aseptic Loosening?
The Journal of Arthroplasty 2008; 23(8):1204-1210 (K94) - M. Napp, M. Frank, M. Witt
Pathologische Fraktur des distalen Femurs bei Knie-TEP
Der Orthopäde, Band 38, Heft 10, Oktober 2009 (K96) - Dae Kyung Bae, Sang Jun Song, Kyoung Ho Yoon, Jung Ho Noh
Long-Term Outcome of Total Knee Arthroplasty in Charocot Joint:
A 10- to 22- Year Follow-Up
The Journal of Arthroplasty 2009; 24(8):1152-1156 (K98)