Although total hip arthroplasty is highly successful for treatment of osteoarthrosis of hip joint, it is skill demanding surgery to perform and even more challenging in case of revision with bone defects. There are many options available for reconstruction of
Introduction. Primary stability is an important factor for long-term implant survival in total hip arthroplasty. In revision surgery, implant fixation becomes especially challenging due the
Introduction. Modern acetabular cups require a convenient bone stock for sufficient cup fixation. Thereby, fixation stability is influenced by the chosen interference fit of the acetabular cup, the cup surface structure, circularity of the reamed acetabulum and by the acetabular bone quality. The ideal implantation situation of the cup is commonly compromised by joint dysplasia and
Introduction.
THA in patients with
Introduction. Revision total hip arthroplasty is often associated with
Aim. Aim of this monocentric, prospective study was to evaluate the safety, efficacy, clinical and radiographical results at 24-month follow-up (N = 6 patients) undergoing hip revision surgery with severe
To evaluate the short-term clinical outcomes of patients treated arthroscopically with chitin-based scaffolding for
Introduction. The number of complex revision total hip arthroplasties (THA) is predicted to rise. The identification of
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Introduction. The goal of revision total hip arthroplasty (THA) for
Revision of total hip arthroplasty (THA) is being performed with increasing frequency. However, outcomes of repeated revisions have been rarely reported in the literature, especially for severe defects. Cup revision can be a highly complex operation depending on the bone
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The treatment of extensive bone loss and massive
Introduction. Acetabular osteotomy is considered to be an alternative treatment for acetabular dysplasia, particularly in adolescents and young adults because the long-term results of total hip arthroplasty (THA) in such patients remain controversial. To our knowledge, few reports have described the relationship between the types of osteotomies and surgical difficulty. We compared the operative and clinical results of THA following the 3 main types of acetabular osteotomies, including Chiari osteotomy, rotational periacetabular osteotomy (RAO), and shelf acetabuloplasty. Methods. Operative records of 13 hips following Chiari osteotomy (Chiari group), 22 hips following RAO (RAO group), and 16 hips following shelf acetabuloplasty (Shelf group) were retrospectively reviewed. Operative records of 2475 primary THAs without previous osteotomies during the same period were reviewed as a control. The direct anterior approach was used for all hips. Results. The mean operative time was 57.7 ± 11.7 min in the Chiari group, 68.7 ± 25.7 min in the RAO group, 57.4 ± 20.5 min in the shelf group, and 50.6 ± 18.5 min in the Control group. The operative time was significantly longer in the RAO group than in the Control group (p < 0.05). The mean operative blood loss was 406 ± 277 g in the Chiari group, 439 ± 400 g in the RAO group, 377 ± 163 g in the Shelf group, and 379 ± 270 g in the Control group. Allogeneic blood transfusion was performed in 1 patient (4%) in the RAO group and in 26 patients (1%) in the Control group. Bulk bone augmentation to the
The treatment of extensive bone loss and massive
Aims. Severe, superior
Introduction. Reinforcement ring with allograft bone is commonly used for acetabular reconstruction of bone defects because it can achieve stable initial fixation of the prosthesis. It is not clear whether the allograft bone can function as a viable host bone and provide long-standing structural support. The purpose of this study was to assess to long-term survival of the reinforcement rings and allograft bone incorporation after acetabular revisions. Methods. We retrospectively reviewed 39 hips (37 patients) who underwent reconstruction of the acetabulum with a Ganz reinforcement ring and allograft bone in revision total hip arthroplasty. There were 18 females and 19 males with a mean age of 55.9 years (35–74 years). The minimum postoperative follow-up period was 10 years (10∼17 years). We assessed the
The custom triflange acetabular component has been advocated for severe
Revision of total hip arthroplasty (THA) is being performed with increasing frequency. However, outcomes of repeated revisions have been rarely reported in the literature, especially for severe defects. Cup revision can be a highly complex operation depending on the bone