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May 2007
Tonino, A. J.; Grimm, B.; Van der Wal, B. C.; Heyligers, I. C. EFORT 2007
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Post-mortem histological analysis of HA-coated hip stems: Bone ongrowth and HA reabsorption Download
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May 2007
Panisello, J. J.; Canales, V.; Herrera, A.; Herrero, L.; Martinez, A.; Cuenca, J. EFORT 2007
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Long term remodelling in proximal femur around a hydroxyapatitecoated anatomic stem. Ten years densitometric follow-up Download
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May 2007
De Kramer, B. J.; Van der Wal, B. C.; Grimm, B. Heyligers, I. C.; Tonino, A. J. EFORT 2007
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Femoral fit in ABG-II hip stems: Influence on clinical outcome and bone remodelling Download
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June 2005
van der Wal B.C.H, Tonino A.J, Geerdink C, Grimm B, Heyligers I.C EFORT 2005
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Analysis of periprosthetic fractures with the ABG I uncemented hip stem using an adjusted Vancouver classification system Download
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June 2005
Tonino A.J, Geerdink C, Grimm B, Heyligers I.C EFORT 2005
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Different long-term results of the femoral stem and the acetabular cup of the ABG I Total Hip Arthroplasty system Download
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June 2005
Asencio G EFORT 2005
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Primary total hip arthroplasty with an anatomic HA coated stem 8 13 years follow up Download
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June 2005
Canales V EFORT 2005
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Ten year follow-up of an anatomic hydroxyapatite-coated hip prosthesis, the ABG I system Download
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June 2005
Rossi R EFORT 2005
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Radiographic analysis of an anatomical stem hip prosthesis ling-term follow-up Download
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November 2004
Nourissat C, Asencio G, Berteaux D SOFCOT 2004
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ABG I Results at more than 10 years for patients below 50 years of age.
97% stem survivorship @ 15 years (97 hips)
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2004
ABG Scientific Group Data In-House
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International Multicentric Studies - ABG Cup and Stem
92% survivorship @ 10 years Please refer to graph. #1
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June 2004
Anderson J, Foster A Presentation ABG Meeting, Nimes
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ABG Experience (stem and cup)
95.4% survivorship @ 10 years (173 patients)
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June 2004
Herrera A, Canales V, Anderson J, Garcia-Araujo C, Murcia-Mazon A, Tonino A.J Clin Orthop 2004 Jun; (423): 129-37
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Seven to 10 Years Follow-Up of an Anatomic Hip Prosthesis: An International Study
96.15% survivorship (99.13% stem; 96.15% cup - 312 patients, 5 centres)
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June 2004
Blacha J Acta Orthop Scand 2004 Jun; 75(3): 276-82
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High Osteolysis and Revision Rate with the Hydroxyapatite-Coated ABG Hip Prostheses: 65 Hips in 56 Young Patients Followed for 5-9 Years
Survivorship 98% stem, 59% cup @ 9 years (average age: 44)
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April 2004
Oosterbos C.J.M, Rahmy A.I, Tonino A.J, Witpeerd W Acta Orthop Scand 2004 Apr; 75(2): 127-33
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High Survival Rate of Hydroxyapatite-Coated Hip Prostheses: 100 Consecutive Hips Followed for 10 Years
Survivorship 100% stem, 97% cup
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April 2004
Asencio G Orthopeadics Today International
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Periacetabular Osteolysis of Uncemented Prostheses
Reference as summary of causes, detection & management / treatment of osteolysis.
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January 2004
Duffy P, Sher J.L, Partington P.F J Bone Joint Surg Br 2004 Jan; 86-B: 34-8
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Premature Wear and Osteolysis in an HA-Coated, Uncemented Total Hip Arthroplasty
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2003
Nourissat C, Adrey J, Berteaux D, Goalard C Springer Verlag Muenchen 2003: 243-259
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Fifteen Years of Clinical Experience with Hydroxyapatite Coatings in Joint Arthroplasty
92.18% survivorship (294 patients - 3 centres @ > 10 years)
97.62% (stem) and 95.92% (cup)
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2003
Tonino A.J, Oosterbos C.J, Rahmy A.I, Therin M Springer Verlag Muenchen 2003: 75-86
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Fifteen Years of Clinical Experience with Hydroxyapatite Coatings in Joint Arthroplasty
What is the Function and Fate of the HA Coating in Cementless HA-Coated Hip Prostheses?
Histology and Histomorphometry Around Eight Hip Prostheses Retrieved at Post Mortem
Between 3 and 9 Years After Successful Implantation.
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August 2003
Rogers A, Kulkarni R, Downes EM J Arthroplasty 2003 Aug; 18(5): 619-25
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The ABG Hydroxyapatite-Coated Hip Prosthesis:
One Hundred Consecutive Operations With Average 6-Year Follow-Up
Survivorship 100% (stem) and 95% (cup)
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October 2003
Nevalainen J, Keinonen A, M
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ABG HA Hip Prosthesis in Primary Arthrosis in 1992-2001
>91% survivorship (cup & stem) 824 cases @ 10 years Please refer to graph. #2
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May 2003
Aebli N, Krebs J, Schwenke D, Stich H, Schawalder P, Theis J.C J Bone Joint Surg Br 2003 May; 85-B: 499-503
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Degradation of Hydroxyapatite Coating on a Well-Functioning Femoral Component
No radiolucent lines.
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April 2003
Garellick G, Herberts P, Malchau H The Swedish National Hip Arthroplasty Register Annual Report 2002
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ABG I Stem & Cup Results at 6 Years
95.5% survivorship (cup & stem)
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February 2003
Giannikas KA, Din R, Sadiq S, Dunningham TH J Arthroplasty 2002 Feb; 17(2): 184-8
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Medium-Term Results of the ABG Total Hip Arthroplasty in Young Patients
Survivorship 96.87% @ 2-7 yrs
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May 2007 Tonino, A. J.; Grimm, B.; Heyligers, I. C. EFORT 2007
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The ABG-II hip stem: A 6-year clinical and radiographic follow-up on 512 implants Download
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May 2007 Grimm, B.; Tonino, A. J.; Heyligers, I. C. EFORT 2007
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8-year prospective randomized comparison between a crosslinked and conventional polyethylene in total hip arthroplasty Download
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May 2007 De Kramer, B. J.; Van der Wal, B. C.; Grimm, B.; Heyligers, I. C.; Tonino, A. J. EFORT 2007
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Femoral fit in ABG-II hip stems: Influence on clinical outcome and bone remodell Download
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2006 Geerdink C H, Grimm B, Ramakrishnan R, Rondhuis J, Verburg A J, Tonino A J Acta Orthopaedica 2006; 77 (5): 719
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Crosslinked polyethylene compared to conventional polyethylene in total hip replacement. Pre-clinical evaluation, in-vitro testing and prospective clinical followup study: The Duration polyethylene showed a significantly lower in-vitro wear rate in the simulator study (mean 22 (SD 2.3) vs. 40 (SD 1.5) mm3/106 cycles). Also, the in-vivo wear was lower for Duration (mean 0.083 (SD 0.056) mm/year) than for conventional polyethylene (mean 0.123 (SD 0.082) mm/year). All radiographic signs of osteolysis were less frequent in the Duration group.
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2006 Panisello J.J., Herrero L., Canales V., Herrera A., Martínez A., Cuenca J. Rev Ortop Traumatol. 2006;50:419-24
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Periprosthetic Remodelling with an Uncemented Anatomical Femoral Stem. A Three-Year Longitudinal Densitometric Study: At 3 years bone mineral density had increased in zones 2 (7.05%) and 6 (5.92%), and had decreased in zones 1 (8.26%) and 7 (16.81%) due to proximal atrophy. No differences in the remodeling pattern were seen due to differences in weight, age or position of the implant. Conclusions. The anatomic femoral stem achieves efficient fixation in the bone metaphysis, and a load transmission pattern that minimizes bone loss at this level and causes a long-term stimulus that allows bone preservation in more distal areas.
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2006 Panisello JJ, Herrero L, Herrera A, Canales V, Martinez A, Cuenca J Journal of Orthopaedic Surgery 2006;14(1):32-7
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Bone remodelling after total hip arthroplasty using an uncemented anatomic femoral stem: a three-year prospective study using bone densitometry 54 patients had neutrally placed stems, while varus and valgus malalignment occurred in 6 and 9 patients, respectively. Only densitometry could detect traceable changes resulting from the differing biomechanics of the neutral, varus, and valgus stem alignments. Conclusion. The ABG II stem design made moderate errors in alignment biomechanically tolerable. Alignment defects had no clinical consequences and resulted in minimal differences in bone remodelling.
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June 2005
Essig J EFORT 2005
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Posterior approach in total hip arthroplasty: Comparative prospective study between mini incision approach and standard incision approach Download
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June 2005
Charriere E EFORT 2005
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Bone remodelling around ABG I and ABG II stems Download
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June 2005
Panisello J EFORT 2005
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Periprosthetic bone remodelling using an uncemented anatomic femoral stem. A 3 year longitudinal densitometric study with 69 patients Download
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2004
Van der Wal B.C.H, Rahmy A.I.A, Grimm B, Blake G.M, Heyligers I.C, Tonino A.J Journal Orthopaedic Research (application to the W. Harris award)
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The influence of implant design on periprosthetic bone remodelling of two types of uncemented
HA coated hip stems. A two years follow up study using DEXA.
The distinct differences in the effect on BMD confirms the philosophy behing the design changes from the ABG I to ABG II where a shorter stem, a polished distal and additional proximal HA coating was meant to enhance load transfer in the proximal region critical for long term fixation.
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September 2004
Adrey J, Ascencio G, Berteaux D, Essig J, Nourissat C, Walter W.L. Presentation ABG Meeting, Nimes 2004 Sep
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Hip Arthroplasty Survivorship
ABG II PE cups (n=456) 100% survivorship @ 7.5 years - no osteolysis
ABG II Ceramic cups (n=156) 100% survivorship @ 3 years - no osteolysis
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July 2004
Bitsakos C, Amis A.A, Charri
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Bone Remodelling Simulation Around the ABG I and ABG II Hip Implants
Approximately 25% les resorption in Gruen zone 7 for the ABGII design compared to the original
ABG design.
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2004
Panisello Sebastia J.J, Herrero Barcos L, Herrera Rodriguez A, Martinez Martin A, Canales Cortes V Submitted to Journal of Arthroplasty, pending
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Changes in Periprosthetic Bone Remodelling Following ABG Stem Design. Densitometric Study
The ABG II stem, with strictly metaphyseal anchorage, achieves sufficient anchoring to transfer loads to the proximal femur and minimize bone loss through stress-shielding.
The changes introduced to the ABG design appear to achieve effective metaphyseal anchoring capable of transferring loads to the proximal femur.
This implant (ABG II) appears particularly suitable for those women in whom one should avoid using large stems with more distal anchoring, which may lead to greater proximal bone atrophy, and for women who are not good candidates for cemented implants.
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2004
Panisello J.J, Herrero L, Canales V, Herrera A, Martinez A.A, Cuenca J Submitted to Journal of Arthroplasty
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Periprosthetic Bone Remodelling Using An Uncemented Anatomic Femoral Stem. A Three Year Longitudinal Densitometric Study
ABG II stem can be considered to achieve efficient metaphyseal fixation, with load transmission to the proximal femur which minimizes bone atrophy at that level which represents sufficient stimulus for long term bone preservation in more distal areas
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April 2003
Garellick G, Herberts P, Malchau H The Swedish National Hip Arthroplasty Register Annual Report 2002
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ABG I Stem & ABG II Cup Results
100% survivorship (109 cases @ 6 years) Please refer to graph. #3
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October 2003
Nevalainen J, Keinonen A, M
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ABG HA + ABG II Cup Hip Prosthesis in Primary Arthrosis in 1996-2001, 90-100% Scale
99% survivorship (1859 cases @ 4 years) Please refer to graph. #4
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February 2003
Freedman L.S, Bolland B.J, Holloway I.P, Remedios D British Hip Society, Belfast, Northern Ireland - Presentation
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ABG II Uncemented Hydroxyapatite Coated Hip Arthroplasty: Clinical and Radiographic Results
100% survivorship for cup and stem (36 patients - 42 hips @ 7 years)
Excellent average MDA score of 17.6
No radiological evidence of loosening of femoral nor acetabular components
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