Trabecular Metal Augments for Treatment of Acetabular Defects: A Systematic Review

2021 ◽  
Author(s):  
Michael-Alexander Malahias ◽  
Fabio Mancino ◽  
Alex Gu ◽  
Ivan De Martino ◽  
Danilo Togninalli ◽  
...  
Keyword(s):  
Systematic Review ◽  
Aseptic Loosening ◽  
Revision Rate ◽  
Bone Defects ◽  
Trabecular Metal ◽  
Acetabular Bone ◽  
Hemispherical Shell ◽  
Acetabular Bone Defects ◽  
Acetabular Defects

AbstractSevere acetabular bone defects during revision total hip arthroplasty are often treated with a hemispherical shell and highly porous modular metal augments. Several papers have been already published reporting on the clinical performance of trabecular metal (TM) augments combined with a hemispherical shell for the management of severe acetabular defects. However, no systematic review of the literature has been published to date. The U.S. National Library of Medicine (PubMed/MEDLINE), EMBASE, and the Cochrane Database of Systematic Reviews were queried for publications utilizing keywords pertinent to tantalum augments and TM (Zimmer Biomet, Warsaw, Indiana) augments, revision THA, clinical outcomes, and complications associated with these procedures. Fifteen articles were found to be suitable for inclusion in the present study, which included 769 revision cases where acetabular augments were used. The majority of acetabular bone defects were type 3 according to the Paprosky classification (type 2A in 58 cases, 7.2%; type 2B in 139 cases, 17.2%; type 2C in 72 cases, 8.9%; type 3A in 360 cases, 44.7%; and type 3B in 177 cases, 22.0%). The overall revision rate for the 769 acetabular revisions with augments was 5.7% (46 cases) at mean mid-term follow-up. The most common reasons for revision were dislocation (3.3%), periprosthetic joint infection (2.9%), and aseptic loosening (2.7%). TM augments combined with hemispherical shells were found to be effective in the treatment of moderate-to-severe acetabular bone defects with a 5% acetabular component revision rate at mean mid-term follow-up. The literature did not delineate whether pelvic discontinuity was associated with a higher risk of aseptic loosening after TM augment. Further studies are needed to clarify the impact of additional screw fixation on survival rates, and whether the type of augment (wedge augments, “flying buttress” augments, column augments), the configuration used, and the number of screws influence clinical and radiographic outcomes.

Impaction bone grafting in hip re-revision surgery

2021 ◽  
Vol 103-B (3) ◽  
pp. 492-499
Author(s):  
Eduardo Garcia-Rey ◽  
Laura Saldaña ◽  
Eduardo Garcia-Cimbrelo
Keyword(s):  
Aseptic Loosening ◽  
Acetabular Component ◽  
Revision Surgery ◽  
Bone Grafting ◽  
Bone Defects ◽  
Bone Stock ◽  
Impaction Bone Grafting ◽  
Acetabular Bone ◽  
Acetabular Bone Defects

Aims Bone stock restoration of acetabular bone defects using impaction bone grafting (IBG) in total hip arthroplasty may facilitate future re-revision in the event of failure of the reconstruction. We hypothesized that the acetabular bone defect during re-revision surgery after IBG was smaller than during the previous revision surgery. The clinical and radiological results of re-revisions with repeated use of IBG were also analyzed. Methods In a series of 382 acetabular revisions using IBG and a cemented component, 45 hips (45 patients) that had failed due to aseptic loosening were re-revised between 1992 and 2016. Acetabular bone defects graded according to Paprosky during the first and the re-revision surgery were compared. Clinical and radiological findings were analyzed over time. Survival analysis was performed using a competing risk analysis. Results Intraoperative bone defect during the initial revision included 19 Paprosky type IIIA and 29 Paprosky type IIIB hips; at re-revision, seven hips were Paprosky type II, 27 type IIIA and 11 were type IIIB (p = 0.020). The mean preoperative Harris Hip Score was 45.4 (SD 6.4), becoming 80.7 (SD 12.7) at the final follow-up. In all, 12 hips showed radiological migration of the acetabular component, and three required further revision surgery. The nine-year cumulative failure incidence (nine patients at risk) of the acetabular component for further revision surgery was 9.6% (95% confidence interval (CI) 2.9 to 21.0) for any cause, and 7.5% (95% CI 1.9 to 18.5) for aseptic loosening. Hips with a greater hip height had a higher risk for radiological migration (odds ratio 1.09, 95% CI 1.02 to 1.17; p = 0.008). Conclusion Bone stock restoration can be obtained using IBG in revision hip surgery. This technique is also useful in re-revision surgery; however, a better surgical technique including a closer distance to hip rotation centre could decrease the risk of radiological migration of the acetabular component. A longer follow-up is required to assess potential fixation deterioration. Cite this article: Bone Joint J 2021;103-B(3):492–499.

Double-trabecular metal cup technique for the management of Paprosky type III defects without pelvic discontinuity

2018 ◽  
Vol 28 (2_suppl) ◽  
pp. 66-72 ◽  
Author(s):  
Mattia Loppini ◽  
Paolo Schiavi ◽  
Antonello Della Rocca ◽  
Francesco Traverso ◽  
Federico Della Rocca ◽  
...  
Keyword(s):  
Bone Defects ◽  
Acetabular Reconstruction ◽  
Trabecular Metal ◽  
Acetabular Bone ◽  
Pelvic Discontinuity ◽  
Type Iii ◽  
Heterotopic Ossifications ◽  
Radiographic Outcomes ◽  
Acetabular Bone Defects

Introduction: Modular reconstruction systems based on trabecular metal (TM) prosthetic components have been increasingly used in the last decade for the management of severe acetabular bone defects. The aim of this study was to assess the clinical and radiographic outcomes of double-cup technique for the management of Paprosky type III defects without pelvic discontinuity. Methods: A retrospective review was performed for all patients undergoing acetabular reconstruction with 2 TM cups at a tertiary referral centre between 2010 and 2015. Harris Hip Scores (HHS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores were evaluated preoperatively and at the latest follow-up. Radiographic assessment of the hip centre of rotation (COR) position and leg length discrepancy (LLD) was performed preoperatively and postoperatively. Osteolysis and radiolucencies, loosening of the implants, and heterotopic ossifications were evaluated with the latest follow-up radiographs. Results: Patients included 5 men and 11 women (16 hips) with an average age of 68 (45–81) years. Acetabular bone defects included 9 Paprosky type IIIB and 7 type IIIA defects. No pelvic discontinuities were registered. The mean follow-up was 34 (24–72) months. HHS and WOMAC scores, LLD and COR position significantly improved after surgery. In only 1 (6.3%) hip a not progressive radiolucent line adjacent the acetabular construct was noted. Heterotopic ossifications were found in 2 (12.5%) hips. No patients underwent acetabular components revision surgery for any reason. Conclusion: The double-cup technique could be considered an effective management of selected Paprosky type III defects without pelvic discontinuity providing excellent clinical and radiographic outcomes in the short term.

Reconstruction of Severe Acetabular Bone Defects in Revision Hip Arthroplasty Management options and clinical outcomes

2018 ◽  
Vol 69 (8) ◽  
pp. 2217-2221
Author(s):  
Stefan Mogos ◽  
George Viscopoleanu ◽  
Monica Dascalu ◽  
Radu Orfanu
Keyword(s):  
Revision Arthroplasty ◽  
Bone Defects ◽  
Harris Hip Score ◽  
Management Options ◽  
Acetabular Bone ◽  
Type Iiia ◽  
Acetabular Bone Defects ◽  
The Mean ◽  
Acetabular Defects

The objective of this study was to evaluate the effectiveness of different surgical implants for the reconstruction of severe acetabular bone defects in revision arthroplasty of the hip. The current study is a retrospective study on 32 patients with Paprosky type IIIA or IIIB acetabular defects operated between January 2012-December 2015 in a single hospital. The mean follow-up was 21 months (12-43 months). Five different types of reconstruction methods were used: primary uncemented cups with or without screws, cemented acetabular cups, tantalum cups, metal augments and antiprotrusio cages. Bone allograft was available in all cases. Functional outcome after surgery was evaluated using Harris Hip Score. Based on Paprosky classification, the study included 16 type IIIA and 16 type IIIB acetabular defects. Bone graft was used in 71.8% of the cases (23 out of 32 patients). Tantalum cups were used in 15 cases (46.9%), being the preferred implant. Primary uncemented cups were used in 2 cases, cemented acetabular cups were used in 4 cases, trabecular metal augments were used in 5 cases and antiprotrusion cages were used in 6 cases. The mean Harris Hip Score improved from 37.3�7.4 pre-operatively to 82.1�7.2 at final follow-up. In conclusion, the current study demonstrates that various methods of reconstruction are efficient in the short and medium-term.

Porous metal revision shells for management of contained acetabular bone defects at a mean follow-up of six years

2012 ◽  
Vol 94-B (2) ◽  
pp. 158-162 ◽  
Author(s):  
A. Sternheim ◽  
D. Backstein ◽  
P. R. T. Kuzyk ◽  
G. Goshua ◽  
Y. Berkovich ◽  
...  
Keyword(s):  
Porous Metal ◽  
Bone Defects ◽  
Acetabular Bone ◽  
Acetabular Bone Defects

scholarly journals Minimum 10 years clinical and radiological outcomes of acetabular revisions of total hip arthroplasties with tricalcium phosphate/hydroxyapatite bone graft substitute

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Jacek Gagala
Keyword(s):  
Bone Graft ◽  
Revision Arthroplasty ◽  
Bone Defects ◽  
Bone Graft Substitute ◽  
Acetabular Bone ◽  
Total Hip ◽  
Acetabular Bone Defects ◽  
Bone Graft Substitutes ◽  
Hip Arthroplasties

Abstract Background Aseptic loosening is the most frequent indication for revision of total hip arthroplasty. Revision arthroplasty of acetabular component is a challenge for every surgeon because they have to simultaneously deal with the reconstruction of bone defects, adequate implant geometry and stable fixation. Allografts are the most frequently used materials in reconstruction of bone loss during revision surgeries. Because of an increasing number of revision hip arthroplasties and poor availability of allografts, we decided to use bone graft substitutes in acetabular revisions. Methods Between September 2005 and January 2010, 44 revision arthroplasties in 43 patients were performed with the use of bone graft substitutes for acetabular defect reconstruction in revision of total hip arthroplasty. Acetabular bone defects were classified according to Paprosky. Seventeen hips were classified as IIA, 3 hips IIB, 3 hips IIC, 10 hips IIIA and 11 hips IIIB. Acetabular bone defects were reconstructed with tricalcium phosphate/hydroxyapatite bone graft substitute - BoneSave. Clinical and radiological examination was performed after 3 months, 1 year and then annually. Harris hip score was used for clinical evaluation. Survival analysis was performed with Kaplan-Meier method with aseptic loosening as the definition of endpoint. Results The average follow-up period is 12 (range from 10 to 15) years. During the follow-up, three patients died after 24 months because of causes not related to surgery. None of the patients was lost to follow-up. The evaluation of clinical results revealed an increase in pre-operative HHS from average 38.3 (range 25 to 55) points to average 86.3 (range 45 to 95) points at the most recent follow-up. Radiographic evaluation showed the migration of one revision cage 12 months after surgery. Revision arthroplasty performed after 14 months revealed the partial incorporation of bone graft substitute. There were not any cases of loosening of revision acetabular cup at the most recent follow up examination in the remaining 39 patients. Bone graft substitute was not absorbed in all of these patients. The survival after 10 years amounted to 97.56%. Conclusion Bone graft substitute Bone Save may be suitable for acetabular revision surgery, however preoperative bone defect is critical for success and determining of a surgical technique, so this is multifactorial in this challenge surgery.

scholarly journals Using Tantalum Augments for Major Acetabular Bone Defects in Revision Hip Surgery

2019 ◽  
Vol 2 (2) ◽  
pp. 64-68
Author(s):  
Adrian Cursaru ◽  
Bogdan Şerban ◽  
Alexandru George Lupu ◽  
Dan Anghelescu ◽  
Georgian Iacobescu ◽  
...  
Keyword(s):  
Revision Surgery ◽  
Functional Results ◽  
Bone Defects ◽  
Acetabular Bone ◽  
Rotation Center ◽  
Acetabular Bone Defects ◽  
Harris Score ◽  
Revision Hip Surgery ◽  
Hip Rotation

AbstractAim. The purpose of the study was to follow up the clinical and functional results of the patients with major acetabular bone defects in revision hip surgery.Materials and methods. The study was retrospective, over a period of six years (from January 2014 to January 2019), and included all the patients with hip replacement, with major acetabular bone defects, who needed Tantalum blocks substitution.11 patients were included in the study (8 men and 3 women). The average age was 71 years (between 64 and 78 years old). The average follow up period was 23 months (between 11 and 36 months). Paprosky radiological classification was used for the preoperatory evaluation of the bone defects. In 9 cases, the bone defect was of type 2B Paprosky and in 2 cases, of type 3A. Harris score was determined preoperatory and postoperatory for the appreciation of functional results.Results. 6 patients were underwent replacement for coxarthrosis secondary to dysplasia, 2 patients for coxarthrosis secondary to aseptic necrosis and 3 patients for primary coxarthrosis.The average time elapsed from the moment of primary arthroplasty to the need of revision surgery was on average of 13 years (between 7 and 16 years). The postoperatory radiological evaluation showed an improvement of the hip rotation center from an average postoperative vertical position of 3.1 cm (between 1.2 and 4.6 cm) at an average postoperatory position of 1.1 cm (between 0.5 and 2.3). The average result of Harris score postoperatively was 36 (between 39 and 96). During the follow up period, no early loosening, infection or prosthesis dislocation was registered. Conclusions. The Tantalum Augments used in major acetabular bone defects in revision surgery represent a good option, correcting the hip rotation center, thus considerably improving the functional score.

scholarly journals The mid-long term results of reconstructional cage and morselized allografts combined application for the Paprosky type III acetabular bone defects in revision hip arthroplasty

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Qiang Xiao ◽  
Haoyang Wang ◽  
Kai Zhou ◽  
Duan Wang ◽  
Tingxian Ling ◽  
...  
Keyword(s):  
Bone Graft ◽  
Hip Arthroplasty ◽  
Bone Defects ◽  
Revision Hip Arthroplasty ◽  
Cancellous Bone Graft ◽  
Acetabular Bone ◽  
Type Iii ◽  
Acetabular Bone Defects

Abstract Background Severe acetabular bone defects is a complex problem in revision hip arthroplasty, cage is one of the reconstruction options. The purpose of this study is to report the mid-long term clinical and radiographic results of Paprosky type III acetabular bone defects revised with reconstructional cage and morselized allogeneic cancellous bone graft without impaction. Methods We retrospectively analyzed 28 patients who underwent revision hip arthroplasty with reconstructional cage and allogeneic cancellous bone graft between January 2007 and January 2016. There were 13 Paprosky type IIIA bone defect patients and 15 Paprosky type IIIB bone defect patients and 4 patients of the 15 were also with pelvic discontinuity. Clinical assessment included Harris Hip Score (HHS) and Short Form-12 (SF-12). Radiographic assessment included center of rotation, cage migration, and bone graft incorporation. Results All patients were followed up with a mean follow-up of 79.5 months (range 38–141), HHS improved from 31.4 (13–43) points preoperatively to 84.6 (55–94) points at last follow-up and SF-12 also improved significantly. There was 1 re-revision for the cage loosening and screw breakage at 61 months after surgery, and 2 patients had nonprogressive radiolucency in zone III and the junction of zone II and zone III at the bone implant interface. Conclusion The reconstructional cage combining with morselized allografts without impaction achieves a good result with a high complete allograft incorporation rate in Paprosky type III acetabular bone defects.

Major Acetabular Defects Treated with the Burch-Schneider Antiprotrusion Cage and Impaction Bone Allograft in a Large Series: A 5- to 7- Year Follow-up Study

2016 ◽  
Vol 26 (6) ◽  
pp. 585-590 ◽  
Author(s):  
Axel Marx ◽  
Alexander Beier ◽  
Anne Richter ◽  
Christoph H. Lohmann ◽  
Andreas M. Halder
Keyword(s):  
Joint Infection ◽  
Revision Arthroplasty ◽  
Bone Allograft ◽  
Bone Defects ◽  
Harris Hip Score ◽  
Consecutive Series ◽  
Hip Revision ◽  
Acetabular Bone ◽  
Acetabular Bone Defects

Introduction Major bone defects are the greatest challenge in hip revision arthroplasty. Methods In a prospective, consecutive nonrandomised study we followed up 74 patients with Type III (AAOS) acetabular bone defects who underwent revision hip arthroplasty with bone grafting and implantation of a Burch-Schneider anti-protrusion cage (APC). The patients were examined pre- and postoperatively according to a standardised clinical and radiological protocol. No patient was lost to follow-up. Results 9 patients died before follow-up. In 9 other patients the APC was revised within the follow-up period. In 4 of these patients the revision was necessary because of aseptic loosening. In the remaining 5 cases joint infection, recurrent dislocation and 1 trauma were the reasons for revision. 56 patients were included in the statistical analysis. In the follow-up group the mean Harris Hip Score increased from 39.9 preoperatively to 73.2. 85% of the patients assessed their operation result as good or excellent. Conclusions In a large consecutive series the Burch-Schneider anti-protrusion cage proved to be a valuable option in the treatment of major acetabular bone defects in hip revision surgery.

The use of customized cages in revision total hip arthroplasty for Paprosky type III acetabular bone defects

2015 ◽  
Vol 39 (10) ◽  
pp. 2023-2030 ◽  
Author(s):  
Yuanqing Mao ◽  
Chen Xu ◽  
Jiawei Xu ◽  
Huiwu Li ◽  
Fengxiang Liu ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Bone Defects ◽  
Revision Total Hip Arthroplasty ◽  
Acetabular Bone ◽  
Total Hip ◽  
Type Iii ◽  
Acetabular Bone Defects
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