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Case Reports
. 2023 Oct 27:24:101248.
doi: 10.1016/j.artd.2023.101248. eCollection 2023 Dec.

Reinforcement Ring-Augmented Hip Arthroplasty: A 35-Year Follow-up

Reinhold Ganz  1 , Gary Ulrich  2 , Srinath Kamineni  2
Affiliations
Case Reports

Reinforcement Ring-Augmented Hip Arthroplasty: A 35-Year Follow-up

Reinhold Ganz et al. Arthroplast Today. .

Abstract

During the late 1980s, techniques were evolving to prevent acetabular component loosening. Inadequate acetabular bone stock further complicated this concern, which was traditionally addressed with cementation and bone grafting during this time period. However, one evolving tactic to address acetabular component loosening in the setting of inadequate acetabular bone stock was to augment bone graft with an acetabular reinforcement ring. In 1963, a 26-year-old, active male sustained a right-sided femoral neck fracture following a skiing accident. He ultimately developed a collapsed femoral head and varus deformity of the femoral neck requiring a total hip arthroplasty with a cemented monoblock femoral component and a polyethylene acetabular component cemented into a reinforcement ring. The initial procedure was performed in 1988, and this prosthesis is still functioning 35 years later and represents one of the longest follow-ups of a patient with a primary total hip arthroplasty with a reinforcement ring.

Keywords: Case report; Hip arthroplasty; Reinforcement ring.

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Figures

Figure 1
Figure 1
Kerboull device (a), Burch-Schneider cage (b), Mueller ring (c), Reinforcement Ring (d and e). Pictures (a-d) are credited to source with permission - Kawanabe, K., Akiyama, H., Goto, K., Maeno, S., & Nakamura, T. (2011).[15] Picture e is used with permission from The Orthopedic Museum.
Figure 2
Figure 2
Anteroposterior (a) and lateral (b) radiographs demonstrating a collapsed femoral head with an altered contour and varus deformity.
Figure 3
Figure 3
Valgus femoral osteotomy with a fixed angle blade plate. One-year after operation with the persistence of a lateral joint space.
Figure 4
Figure 4
Five-year postoperative anteroposterior radiograph, demonstrating a solidly fixed total hip arthroplasty with no loosening.
Figure 5
Figure 5
Anteroposterior (a) and lateral (b) radiographs demonstrating well-fixed components. Some heterotopic bone evident on both the anteroposterior and lateral views.
Figure 6
Figure 6
Anteroposterior (a) and lateral (b) radiographs demonstrating well-fixed components. A mature heterotopic bone evident on the AP and lateral view. No loosening visible of either component.
Figure 7
Figure 7
Anteroposterior radiograph in 2019 (latest radiographic follow-up) demonstrating well-fixed components. No loosening visible of either component.
See this image and copyright information in PMC

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