Hydroxyapatite Ceramic Hip Survey: Ceramic/Ceramic Bearings

2007 ◽  
Vol 361-363 ◽  
pp. 1283-1286
Author(s):  
James M. Buchanan ◽  
Sally Goodfellow
Keyword(s):  
Histological Examination ◽  
Clinical Application ◽  
Alumina Ceramic ◽  
Harris Hip Score ◽  
X Rays ◽  
Post Mortem ◽  
Hydroxyapatite Ceramic ◽  
Ceramic Components ◽  
Zirconia Toughened Alumina

This paper describes the clinical application of alumina ceramic and, more recently, Zirconia Toughened Alumina (ZTA), to the bearing surfaces of hip implants with a maximum follow up of fifteen years. Patients are assessed pre- and post-operatively using the Harris Hip Score. [1] X-rays are taken annually and, where appropriate, post mortem histological examination is carried out. Results are discussed. Some failures of alumina ceramic components have been seen and measures to prevent such incidents are described.

scholarly journals The Reconstruction Accuracy of the Hip Center of Rotation After Cementless Total Hip Arthroplasty for Failed Treatment of Acetabular Fractures. Does It Matter?

2021 ◽  
Author(s):  
Liang Zhang ◽  
Mingxue Chen ◽  
Zhuyi Ma ◽  
Tao Bian ◽  
Shaoliang Li ◽  
...  
Keyword(s):  
Harris Hip Score ◽  
Acetabular Fractures ◽  
X Rays ◽  
Reconstruction Accuracy ◽  
Center Of Rotation ◽  
Total Hip ◽  
Radiographic Outcomes ◽  
Negative Effect ◽  
Hip Arthroplasties

Abstract Background To assess the impaction of reconstruction accuracy of hip center of rotation (COR) on midterm clinical and radiographic results of cementless reconstruction of total hip arthroplasties (THAs) for patients after failed treatment of acetabular fractures. Methods One hundred and four patients (107 hips) who underwent THAs after failed treatment of acetabular fractures were retrospectively evaluated and cementless cups and stems were implanted in all hips. Clinical outcomes were assessed using the Harris hip score (HHS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC) scoring system. Radiographic results were analyzed by serial perioperative x-rays. Results At the latest follow-up examination, the median HHS increased from 52 (42-65) before surgery to 93 (90-97) (p < 0.001) and the median WOMAC decreased from 52 (36-65) before surgery to 5.8 (1.5-8) (p < 0.001). Compared with normal contralateral hip, 79 cups migrated superiorly (0.2-33.6mm) and 22 cups migrated inferiorly (0.2-16.1mm). The distance of superior migration of reconstructed COR was correlated with positive Trendelenburg sign at the latest follow-up examination (r=0.504; p < 0.001). The percentage of postoperative Trendelenburg sign was significantly higher in superior migration subgroup than that in subgroup with anatomical restoration of COR (P=0.015). Conclusions Cementless THAs in patients after failed treatment for acetabular fractures achieved predictable clinical and radiographic outcomes. A superiorly migrated hip COR appeared to exert a negative effect on abductor muscle function.

scholarly journals Modified trapdoor procedures using autogenous tricortical iliac graft without preserving the broken cartilage to treat osteonecrosis of the femoral head: A Prospective Cohort Study With Historical Controls

2019 ◽  
Author(s):  
Qi Cheng ◽  
fengchao zhao ◽  
Shi-zhuang Xu ◽  
Li Zheng ◽  
Xin Zheng ◽  
...  
Keyword(s):  
Articular Cartilage ◽  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
X Rays ◽  
Clinical Failure ◽  
Light Bulb ◽  
Total Hip

Abstract Background The aim of the present study was to investigate clinical and radiological outcomes of autologous tricortical iliac graft through a window created at the femoral head, without suturing the opened articular cartilage to treat osteonecrosis of the femoral head (ONFH), called modified trapdoor procedures. Methods A total of 59 consecutive patients (67 hips ) with ONFH were included in this study, which was conducted during the period from April 2009 to March 2012. Harris hip scores (HHS) were used to evaluate hip function pre- and postoperatively. Anteroposterior and frog-position X-rays and magnetic resonance imaging (MRI) were conducted to evaluate lesion location, size, and ARCO stage. Clinical failure was defined as score < 80 points or treatment by total hip arthroplasty(THA). Radiographic failure was defined as a > 3 mm of collapse in the hip. This group was retrospectively matched according to the ARCO stage, extent, location, etiology of the lesion, average age, gender, and preoperative Harris hip score to a group of 59 patients (67 hips) who underwent the“light bulb”approach during March 2007 to April 2009. Results Mean follow-up was 91.2 ± 13.6 months (range, 75–115 months). Mean HHS was 91.3 ± 4.5, compared with 83.1± 4.5 in the “light bulb” cohort at the 6 years follow-up examination ( P < 0.001). At the 6 years follow-up, for modified trapdoor procedures, five hips (8.5%) were classified as clinical failure, and 3 hips underwent total hip arthroplasty; Seven hips were classified as (10.4%) radiographic failure.The clinical and radiographic failure of the hips treated with the modified trapdoor procedure was significantly lower than that of the hips treated with the “light bulb” procedure (p < 0.05). Survival of the joint was not significantly related to the location of the femoral head lesion between two groups, but there was better clinical and radiographic results in modified trapdoor procedures with Size-C and the ARCO stage III. Conclusion The study demonstrated superior medterm clinical results in ONFH with the use of autologous tricortical iliac block graft through a femoral head window, without suturing the opened articular cartilage.

scholarly journals A new anterolateral surgical approach for total hip replacement

Joints ◽  
2016 ◽  
Vol 04 (03) ◽  
pp. 148-152
Author(s):  
Giovanni Grano ◽  
Maria Pavlidou ◽  
Alberto Todesco ◽  
Augusto Palermo ◽  
Luigi Molfetta
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Case Series ◽  
Hip Dislocation ◽  
Harris Hip Score ◽  
Anterolateral Approach ◽  
X Rays ◽  
Level Of Evidence ◽  
Total Hip

Purpose: the purpose of the present paper is to present the short-term results of a “detachment-free” (DF) anterolateral approach for primary total hip replacement (THR) performed in a large series of patients. Methods: two hundred patients submitted to primary THR were retrospectively reviewed for the present study. In all cases, the surgery was performed using a minimally invasive DF anterolateral approach, which entails no disconnection of tendons and no muscle damage. The study population consisted of 96 men (48%) and 104 women (52%), with an average age of 69.4 years (range 38-75). Clinical and radiographic follow-up was performed after 12 months. Results: the clinical results, evaluated using the Harris Hip Score, were excellent in 95% of the cases and good in 5%; no cases had fair or poor results. X-rays taken at 3, 6 and 12 months after surgery did not show heterotopic ossification, mobilization of the prosthetic components, or hip dislocation. No infections, deep vein thrombosis, or failure of the gluteal muscles were reported. Conclusions: the DF anterolateral approach for THR proved safe and provided effective results at shortterm follow-up. Level of evidence: Level IV, therapeutic case series.

High rate of infection eradication following cementless one-stage revision hip arthroplasty with an antibacterial hydrogel coating

2021 ◽  
pp. 039139882199550
Author(s):  
Antonio Pellegrini ◽  
Claudio Legnani
Keyword(s):  
Hip Arthroplasty ◽  
Soft Tissues ◽  
High Rate ◽  
Revision Hip Arthroplasty ◽  
Harris Hip Score ◽  
X Rays ◽  
One Stage ◽  
Infection Eradication ◽  
Hydrogel Coating

Purpose: We conducted a retrospective study to evaluate the outcomes of one-stage revision total hip arthroplasty (THA) following periprosthetic joint infection (PJI) in terms of eradication of the infection, improvement of pain and joint function. We hypothesized that this treatment strategy could lead to satisfying results in selected patients after preoperative microorganism isolation. Methods: Ten patients underwent cementless one-stage revision hip arthroplasty with antibacterial hydrogel coating for the treatment of an infected THA. Inclusion criteria were: the presence of a known organism with known sensitivity, patients non-immunocompromised with healthy soft tissues with minimal or moderate bone loss. Mean age at surgery was 69.4 years. Assessment included objective examination, Harris hip score, visual analog scale pain score, standard X-rays. Results: At a mean follow-up of 3.1 years (range, 2–5 years), none of the patients had clinical or radiographic signs suggesting recurrent infection. Follow-up examination showed significant improvement of all variables compared to pre-operative values ( p < 0.05). Radiographs did not show progressive radiolucent lines or change in the position of the implant. Conclusions: One-stage revision THA with antibacterial hydrogel coated implants represents a safe and effective procedure providing infection eradication and satisfying subjective functional outcomes in selected patients.

scholarly journals Modified trapdoor procedures  using autogenous tricortical iliac graft  without preserving the broken cartilage to treat osteonecrosis of the femoral head: A Prospective Cohort Study With Historical Controls

2020 ◽  
Author(s):  
qi Cheng ◽  
fengchao zhao ◽  
Shizhuang Xu ◽  
Li Zheng ◽  
Xin Zheng
Keyword(s):  
Articular Cartilage ◽  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
X Rays ◽  
Clinical Failure ◽  
Light Bulb ◽  
Total Hip

Abstract Background The aim of the present study was to investigate clinical and radiological outcomes of autologous tricortical iliac graft through a window created at the femoral head, without suturing the opened articular cartilage to treat osteonecrosis of the femoral head (ONFH), called modified trapdoor procedures.Methods A total of 59 consecutive patients (67 hips; 36 males and 23 females) with ONFH were included in this study, which was conducted during the period from April 2009 to March 2012. Patient age ranged from 27 to 46 years old, with mean age of 36.3 years. Harris hip scores (HHS) were used to evaluate hip function pre- and postoperatively. Anteroposterior and frog-position X-rays and magnetic resonance imaging (MRI) were conducted to evaluate lesion location, size, and ARCO stage. Clinical failure was defined as score < 80 points or treatment by total hip arthroplasty(THA). Radiographic failure was defined as a > 3 mm of collapse in the hip. This group was retrospectively matched according to the ARCO stage, extent, location, etiology of the lesion, average age, gender, and preoperative Harris hip score to a group of 59 patients (67 hips) who underwent the“light bulb”approach during March 2007 to April 2009. Results Mean follow-up was 91.2 ± 13.6 months (range, 75–115 months). Mean HHS was 91.3 ± 4.5, compared with 83.1± 4.5 in the “light bulb” cohort at the 6 years follow-up examination (P < 0.001). At the 6 years follow-up, for modified trapdoor procedures, five hips (8.5%) were classified as clinical failure, and 3 hips underwent total hip arthroplasty; Seven hips were classified as (10.4%) radiographic failure.The clinical and radiographic failure of the hips treated with the modified trapdoor procedure was significantly lower than that of the hips treated with the “light bulb” procedure (p < 0.05). Survival of the joint was not significantly related to the location of the femoral head lesion between two groups, but there was better clinical and radiographic results in modified trapdoor procedures with Size-C and the ARCO stage III.Conclusion The study demonstrated superior medterm clinical results in ONFH with the use of autologous tricortical iliac block graft through a femoral head window, without suturing the opened articular cartilage. The results of this femoral head-preserving procedure in patients with postcollapse osteonecrosis and large lesion are superior to those of the “light bulb” procedure treatment.

scholarly journals The Corail Stem as a Reverse Hybrid – Survivorship and X-Ray Analysis at 10 Years

2017 ◽  
Vol 27 (4) ◽  
pp. 354-360 ◽  
Author(s):  
Helge Wangen ◽  
Lars Nordsletten ◽  
Jens G. Boldt ◽  
Anne M. Fenstad ◽  
David E. Beverland
Keyword(s):  
Clinical Outcome ◽  
Femoral Stem ◽  
Successful Outcome ◽  
Harris Hip Score ◽  
Heterotopic Bone ◽  
Heterotopic Bone Formation ◽  
X Rays ◽  
The Mean ◽  
Cemented Cup

Background The use of a cemented cup together with an uncemented stem in total hip arthroplasty (THA) has become popular in Norway and Sweden during the last decade. The results of this prosthetic concept, reverse hybrid THA have been sparsely described. We report our experience of reverse hybrid THA, using the Elite plus polyethylene cemented cup together with the Corail fully hydroxyapatite-coated uncemented stem and a 28-mm alumina ceramic head. Patients and methods 132 consecutive reverse hybrid hip arthroplasties were performed from January 2000 to December 2003 in 126 patients with a mean age of 54.3 years (28-65). All patients were routinely reviewed at 3 months, 1, 5, 7 and 10 years postoperatively. At each follow-up patients were seen either by a consultant orthopaedic surgeon or a senior trainee. Anteroposterior pelvic and lateral x-rays of the hip were taken at each visit. To estimate the survival of the THAs we used the Kaplan-Meier method with 95% confidence interval (CI). Logistic regression analysis was performed to determine which factors affected the presence of radiolucency around the femoral stem. Results The mean follow-up was 11.1 years (9.0-14.2). 1 patient was lost to follow-up, and 7 patients were deceased at the time of 10-year follow up. At 10 years 7 patients have had further surgery. 5 for infection, 1 periprosthetic femoral fracture and 1 heterotopic bone formation. All stems were classified as well fixed. 2 cups were defined as loose at 10 years. 1 patient is scheduled for revision the other refused revision. The clinical outcome and radiological findings were assessed in 123 hips. The mean Harris Hip Score was 94 (35-100) at 10 years and the mean WOMAC score was 89 (30.2-100). Conclusions We report good results with respect to clinical outcome and survival of the reverse hybrid concept in patients younger than 65. A successful outcome depends on meticulous preoperative planning, use of modern cementing techniques in the acetabulum and experience in implanting an uncemented stem.

Ceramic-On-Ceramic Implants in Total Hip Arthroplasty

2005 ◽  
Vol 284-286 ◽  
pp. 1003-1006
Author(s):  
Clifford W. Colwell ◽  
J.A. D'Antonio ◽  
W.N. Capello ◽  
M.E. Hardwick
Keyword(s):  
Ceramic Materials ◽  
Clinical Results ◽  
Alumina Ceramic ◽  
Harris Hip Score ◽  
X Rays ◽  
Cobalt Chromium ◽  
Ceramic Implants ◽  
Receive System ◽  
Clinical And Radiological Results ◽  
Ceramic On Ceramic

Alumina ceramic is an excellent material for biologic implantation. Decreased particulate wear debris should increase implant longevity. The purpose of this study is to examine clinical and radiological results of ceramic-on-ceramic hip implants compared to cobalt chrome on polyethylene. Four cementless systems were compared, three alumina-on-alumina bearing systems: System I, porous coated cup; System II, hydroxyapatite-coated cup; Trident system, hydroxyapatite-coated cup with metal sleeve backing on ceramic cup liner; and System III (control), porous-coated cup with polyethylene and cobalt chromium bearing system. Patients were randomized to receive System I, II, or III. Trident patients were not randomized. Examinations are performed at 6 months, 1 year and yearly thereafter including x-rays, clinical exam and Harris Hip Score (HHS). Minimum 24-month followup was performed in 562 ceramic hips and 154 control hips. Age, height, weight, gender and diagnosis were similar in all groups. HHS was rated good/excellent by 95 percent of ceramic hips and 97 percent of control hips. Radiographic results demonstrated radiolucency in Femoral Gruen Zone 1 in 3.8 percent (18/474) of ceramic hips and in 8 percent (10/128) of control hips. Unstable acetabular components were reported in none of ceramic hips and in 3.2 percent (5/154) of control hips. Revision was performed in 7 (1.2 percent) ceramic hips, none due to failure of ceramic materials, and in 9 (5.8 percent) control hips. Alumina ceramic materials show promise, but continued evaluation of long-term clinical results is needed.

scholarly journals Midterm results of the cylindrical fully porous-coated uncemented femoral stem in revision patients with Paprosky I–IIIA femoral defects

2018 ◽  
Vol 26 (2) ◽  
pp. 230949901878390 ◽  
Author(s):  
Salduz Ahmet ◽  
Kılıçoğlu Önder İsmet ◽  
Ekinci Mehmet ◽  
Yıldız Eren ◽  
Tözün Remzi ◽  
...  
Keyword(s):  
Aseptic Loosening ◽  
Femoral Stem ◽  
Assistive Device ◽  
Harris Hip Score ◽  
X Rays ◽  
Functional Scores ◽  
Femoral Stems ◽  
The Mean ◽  
Uncemented Femoral Stem

Introduction: The aim of this study was to analyze the survival of the Echelon® femoral stems in revision hip surgeries in patients with Paprosky I–IIIA femoral defects. Patients and methods: Sixty-six patients (70 hips) who underwent revision hip surgery with at least 3 years of follow-up data were included in the study between 2000 and 2013. The mean patient age was 64.5 (32–83) years, and the mean follow-up period was 93 (45–206) months. The reasons for revision were aseptic loosening in 55 (78.6%) patients, periprosthetic joint infection in 9 (12.9%) patients, periprosthetic fracture in 4 (5.7%) patients, and stem fracture in 2 (2.9%) patients. The preoperative and postoperative follow-up X-rays and functional scores were evaluated. Results: Five patients died in an average of 70 (45–86) months after surgery due to non-related diseases. We encountered sciatic nerve palsy in two patients and early hip dislocation in two patients, whereas 54 patients were able to walk without any assistive device. The remaining 12 patients required an assistive device to walk. The mean Harris hip score significantly increased from 34 (7–63) preoperatively to 72 (43–96) postoperatively. Aseptic loosening was observed in one patient. The survival of the porous-coated anatomical uncemented femoral stem was 98.4% over 10 years. Conclusion: This study showed that good clinical outcomes and survival can be obtained when using porous-coated anatomical uncemented femoral stems.

Modified Dunn procedure versus percutaneous pinning in moderate/severe stable slipped capital femoral epiphyses

2021 ◽  
pp. 112070002110048
Author(s):  
Claudia Galletta ◽  
Alessandro Aprato ◽  
Matteo Giachino ◽  
Giorgio Marre’ Brunenghi ◽  
Silvio Boero ◽  
...  
Keyword(s):  
Harris Hip Score ◽  
X Rays ◽  
Anatomic Reduction ◽  
Significant Difference ◽  
Functional Scores ◽  
Long Term Follow Up ◽  
In Situ Fixation

Background: The modified Dunn procedure (MDP) has risen enthusiasm in treating slipped capital femoral epiphyses (SCFE) due to the anatomic reduction and high patients’ satisfaction rates at long-term follow-up. Main aim of this study is to compare clinical and radiographic outcomes of 2 cohorts with moderate to severe stable SCFE treated by MDP and in situ fixation. Methods: Medical records were analysed to collect demographic data, comorbidities and time from slip to surgery. The collected postoperative data were: avascular necrosis (AVN); complications; progression of osteoarthritis and subsequent procedures. Southwick angles (SA), alpha angles and Klein line were measured on the preoperative x-rays, on the immediate postoperative period and at the latest follow-up. Outcomes scores were recorded by the following questionnaires: the Harris Hip Score, the Hip disability and Osteoarthritis Outcome Score, the Merle d’Aubigné and Postel score and the Western Ontario and McMaster Universities Arthritis Index. Kaplan-Meier survivorship curve was calculated. Results: We compared 81 hips treated by MDP with 22 hips treated by in situ pinning (PS) for moderate/severe stable SCFE. No significant differences were found between the 2 groups in terms of age, BMI, comorbidities and preoperative slip angles. At the latest follow-up, postoperative anteroposterior mean slip angles were respectively 6.2 and 19.9° in MDP and PS group ( p = 0.3). Slip angles in frog lateral view were 11° in the MDP group and 39.7° in the PS group ( p = 0.2). MDP group achieved better correction angles on frog leg view (11° vs. 39.7°; p < 0.001). There was no statistically significant difference in the occurrence of AVN among both groups (19.7% MDP group vs. 31.8% PS group) ( p = 0.2). Conclusions: The MDP in treating severe stable SCFE showed the best deformities corrections in conjunction with the highest functional scores at long-term follow-up and similar rates of osteonecrosis compared to in situ fixation.

scholarly journals Modified trapdoor procedures  using autogenous tricortical iliac graft  without preserving the broken cartilage to treat osteonecrosis of the femoral head: A Prospective Cohort Study With Historical Controls

2020 ◽  
Author(s):  
Qi Cheng ◽  
Fengchao Zhao ◽  
Shizhuang Xu ◽  
Li Zheng ◽  
Xin Zheng
Keyword(s):  
Articular Cartilage ◽  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
X Rays ◽  
Clinical Failure ◽  
Light Bulb ◽  
Total Hip

Abstract Background The aim of the present study was to investigate clinical and radiological outcomes of autologous tricortical iliac graft through a window created at the femoral head, without suturing the opened articular cartilage to treat osteonecrosis of the femoral head (ONFH), called modified trapdoor procedures. Methods A total of 59 consecutive patients (67 hips; 36 males and 23 females) with ONFH were included in this study, which was conducted during the period from April 2009 to March 2012. Patient age ranged from 27 to 46 years old, with mean age of 36.3 years. Harris hip scores (HHS) were used to evaluate hip function pre- and postoperatively. Anteroposterior and frog-position X-rays and magnetic resonance imaging (MRI) were conducted to evaluate lesion location, size, and ARCO stage. Clinical failure was defined as score < 80 points or treatment by total hip arthroplasty(THA). Radiographic failure was defined as a > 3 mm of collapse in the hip. This group was retrospectively matched according to the ARCO stage, extent, location, etiology of the lesion, average age, gender, and preoperative Harris hip score to a group of 59 patients (67 hips) who underwent the“light bulb”approach during March 2007 to April 2009. Results Mean follow-up was 91.2 ± 13.6 months (range, 75–115 months). Mean HHS was 91.3 ± 4.5, compared with 83.1± 4.5 in the “light bulb” cohort at the 6 years follow-up examination ( P < 0.001). At the 6 years follow-up, for modified trapdoor procedures, five hips (8.5%) were classified as clinical failure, and 3 hips underwent total hip arthroplasty; Seven hips were classified as (10.4%) radiographic failure.The clinical and radiographic failure of the hips treated with the modified trapdoor procedure was significantly lower than that of the hips treated with the “light bulb” procedure (p < 0.05). Survival of the joint was not significantly related to the location of the femoral head lesion between two groups, but there was better clinical and radiographic results in modified trapdoor procedures with Size-C and the ARCO stage III. Conclusion The study demonstrated superior medterm clinical results in ONFH with the use of autologous tricortical iliac block graft through a femoral head window, without suturing the opened articular cartilage. The results of this femoral head-preserving procedure in patients with postcollapse osteonecrosis and large lesion are superior to those of the “light bulb” procedure treatment.

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