Acetabular reconstruction in developmental dysplasia of the hip

Gill, Thomas J.; Siebenrock, Klaus A.; Oberholzer, Rolf; Ganz, Reinhold

doi:10.1016/s0883-5403(99)90115-8

Cited by 47 publications

(8 citation statements)

References 22 publications

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“…Regarding the implantation of Ganz Rings for acetabular revision arthroplasty the earliest long-term results published by Gill [ 2 ] in 1999 showed a survivorship rate of 93,9% (33 hips) after 6,7 years on average. Longer follow-up periods were presented by Uchiyama et al .…”

Section: Discussionmentioning

confidence: 99%

“…The Ganz Ring (Fig. 1 ) – also known as acetabular roof reinforcement ring with hook – has been used by Ganz routinely for acetabular reconstruction since 1989 [ 2 ]. It is designed for reconstruction of acetabular floor or cavitary defects and smaller defects of the lateral border of the acetabular rim.…”

Section: Introductionmentioning

confidence: 99%

“…An intact inferior part of the acetabulum is required for anchoring the hook in the incisura acetabula. Concerning the survivor rate of this implant long-term results of 10 years are available [ 2 , 4 , 6 - 9 ]. When the inferior border of the acetabulum is deficient for anchoring the hook a different implant is needed.…”

Section: Introductionmentioning

confidence: 99%

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10-Year Survival of Acetabular Reinforcement Rings/Cages for Complex Hip Arthroplasty

Ewers¹,

Spross²,

Ebneter³

et al. 2015

TOORTHJ

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Introduction : Acetabular reinforcement rings/ cages (AR) are commonly used for reconstruction of bone defects in complex hip arthroplasty. The aim of this study was to retrospectively investigate the 10-year survival rate of Ganz reinforcement rings and Burch-Schneider cages used in a single institution.Material and Methods : Between September 1999 and June 2002 all ARs, implanted in one institution, were identified. All patients had regular clinical and radiographic follow-up and were included in this study. Their prospectively collected clinical and radiographic data was retrospectively analyzed. In case of death before the 10-year follow-up examination, patient’s families or their general practitioner was contacted by telephone. The main outcome measures were survival of the ARs and kind of revision surgery.Results : The 10-year survival rate was 77.7%. At 10-year follow-up, 5/60 (8,3%) patients could not be located and had to be excluded therefore. 27/55 (49,1%) were dead, whereof 22 had no revision of the ARs before death (after a mean of 66 months; range: 0 - 123). Of the remaining 28/55 (50,9%) patients, 23 patients (24 ARs) had no revision of the ARs.Conclusion : Despite the high mortality rate of this study’s collective, ARs for complex primary or revision total hip arthroplasty provided predictable long term results.Level of Evidence : Clinical investigation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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10-Year Survival of Acetabular Reinforcement Rings/Cages for Complex Hip Arthroplasty

Ewers¹,

Spross²,

Ebneter³

et al. 2015

TOORTHJ

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“…The main goal to manage severe periacetabular bone loss is providing a stable continuousness between ischium and ileum with anatomical hip center reconstruction. The reconstruction in RTHA surgery is done by utilizing porous cups, acetabular reinforcement rings/cages (Ganz Ring and Burch-Schneider Cages also known as anti-protrusio cage) with or without utilizing of cement or bone grafts (8)(9)(10)(11)(12)(13). In the report by Kim et al, 35 RTHA using acetabular ring and allogenic bone grafting were followed-up for an average of 3.8 years.…”

Section: Introductionmentioning

confidence: 99%

The Midterm Results of Revision Total Hip Arthroplasty in Cases with Acetabular Defects: A Single-Center Case Series

Rasi¹,

Amrani²,

Abousaidi³

et al. 2018

J Orthop Spine Trauma

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Background: Revision total hip arthroplasty (RTHA) is one of the critical topics in the orthopedic surgery. In this single center case series, the revision treatment of cases with acetabular defects following total hip arthroplasty is reported. Methods: A total of 25 patients with acetabular defects were enrolled in this case series held in Imam Hossein Hospital, Tehran, Iran. The mean follow-up of patients was three years (24 -42 months). The illustrated data include a history of surgeries, underlying diseases, acetabular defect classification, surgery procedure, and pre-and post-surgery complications and managements, Harris hip score (HHS), leg length discrepancy (LLD). Results:The mean age of patients was 63.8 ± 10.45 years. A total of 14 patients had two previous surgeries, eight patients had three surgeries, and three patients had four previous surgeries. Classification of bone loss using AAOS showed that four patients had grade III and 21 patients had grade IV acetabular bone loss. The RTHA was done using anti-protrusio in 12 patients and large cups in 13 patients. The mean Harris hip score was 22.16 before RTHA, which was 80.6 after revision surgery. Before the operation, the mean leg length discrepancy was 38.84 mm, which was corrected after surgery to an average of 3.56 mm. Conclusions: Extensive evaluation of patients with acetabular defects before and during revision surgery leads to promising results. Larger studies evaluating the management strategy in patients with acetabular defects are needed.

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“…In dysplastic hips, such as Developmental dysplasia of the hip sequelae or hip joint infection sequelae, placing the cup in the true acetabulum and acquiring sufficient cup coverage by the subchondral bone may not be possible because of a lack of sufficient host bone. The techniques for managing the problem of insufficient acetabular bone coverage include structural bone graft ing,4-7) the use of a small cup placed in or near the native acetabulum,1) the use of an acetabular reinforcement ring8) and medialization of the acetabular component 2,9,10)…”

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confidence: 99%

Cotyloplasty in Cementless Total Hip Arthroplasty for an Insufficient Acetabulum

Kim¹,

Nam

Yoo

et al. 2010

Clin Orthop Surg

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BackgroundCotyloplasty is a technique that involves making a perforation of the medial wall of a shallow acetabulum and then inserting an acetabular cup with the medial aspect of its dome beyond the Kohler line. The purpose of this study was to evaluate the results of cementless total hip arthroplasty (THA) using cotyloplasty with focusing on the amount of medial cup protrusion.MethodsSixteen hips with insufficient acetabulum in sixteen patients were treated by cementless THA using cotyloplasty. The average patient age was 47 years. The diagnoses included dysplastic hip (12) and infection sequelae (4). All the patients were followed up for at least 2 years. Clinically, the Harris hip scores were assessed and radiologically, the amount of cup protrusion, the hip center movement and cup fixation were evaluated.ResultsThe average Harris hip score improved from 57 to 94 postoperatively. The average proportion of cup surface beyond the Kohler line was 44.1% and the hip centers were medialized by an average of 23 mm. Stable fixation of the acetabular cup was achieved in all the cases except one. In this one case, migration of the cup was detected 2 weeks postoperatively and a reoperation was performed.ConclusionsUsing cotyloplasty, good coverage of the acetabular cup was obtained without a block bone graft, and the hip joint centers were medialized. However, the safety margin for the amount of protrusion should be established.

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Acetabular reconstruction in developmental dysplasia of the hip

Cited by 47 publications

References 22 publications

10-Year Survival of Acetabular Reinforcement Rings/Cages for Complex Hip Arthroplasty

10-Year Survival of Acetabular Reinforcement Rings/Cages for Complex Hip Arthroplasty

The Midterm Results of Revision Total Hip Arthroplasty in Cases with Acetabular Defects: A Single-Center Case Series

Cotyloplasty in Cementless Total Hip Arthroplasty for an Insufficient Acetabulum

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