Ceramic-on-metal bearing in short stem total hip arthroplasty: ions, functional and radiographic evaluation at mid-term follow-up

Introduction: The aim of this study is to evaluate clinical, radiographic and laboratory results of ceramic-on-metal (CoM) (hybrid hard bearing) in total hip arthroplasty (THA), associated with a short stem implant. Methods: From a cohort of 37 patients suffering from primary or secondary hip osteoarthritis who underwent THA using CoM bearing, 19 were suitable for this study. All procedures were performed by the same surgeon using a posterior-lateral approach. All patients were compared clinically using the Harris Hip Score (HHS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), visual analogue scale (VAS), 12-item Short Form Health Survey (SF12F/M), and radiographically (offset, CD angle, limb length discrepancy, cup inclination and anteversion, subsidence, osseointegration, heterotopic ossification). Blood samples were collected in order to evaluate chromium (Cr) and cobalt (Co) ions level. Radiographic evaluations were carried out by 3 different blinded surgeons. A statistical analysis was performed. Results: At a mean follow-up of 97 (73–125) months all implanted stems were well-positioned and osseointegrated. Clear improvements were observed for clinical scores comparing preoperative and postoperative values. Radiographic evaluation showed a good ability to restore proper articular geometry. Cr ion analysis revealed values below the safety threshold except for 1 case. Serum levels of Co were below the threshold in all patients. There was a statistically significant correlation only between Cr metal ions and length of follow-up. Conclusions: CoM bearing has proven to be reliable and safe at a mean 8-year follow-up for patients in whom the components were correctly implanted. The rise of blood metal ions was minimal and involved neither systemic or local toxicity nor influenced clinical results.

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5-Year Clinical and Radiographic Results of the Direct Anterior Approach for Total Hip Arthroplasty Using a Collared Cementless Femoral Short-Stem Prosthesis

Journal of Clinical Medicine ◽

10.3390/jcm11020346 ◽

2022 ◽

Vol 11 (2) ◽

pp. 346

Author(s):

Ali Darwich ◽

Kim Pankert ◽

Andreas Ottersbach ◽

Marcel Betsch ◽

Sascha Gravius ◽

...

Keyword(s):

Total Hip Arthroplasty ◽

Clinical Outcome ◽

Hip Arthroplasty ◽

Anterior Approach ◽

Hip Osteoarthritis ◽

Direct Anterior Approach ◽

Short Stem ◽

Total Hip ◽

The Mean

The aim of this study was to investigate the radiological and clinical outcome of the direct anterior approach (DAA) in total hip arthroplasty (THA) using a collared cementless femoral short-stem. This retrospective study included 124 patients with 135 THAs operated from 2014 to 2016 using a collared cementless triple tapered hydroxyapatite-coated femoral short-stem (AMIStem H Collared®, Medacta International, Castel San Pietro, Switzerland) implanted with a DAA. Follow-up was performed at three months, 12 months, and five years. Clinical outcome was assessed using the hip osteoarthritis outcome score (HOOS) and radiological analysis was done using conventional radiographs, which included evaluation of the femur morphology based on Dorr classification, of radiolucencies based on the Gruen zone classification and of stem subsidence. The mean age was 67.7 ± 11.3 years and the mean body mass index (BMI) was 27.4 ± 4.4 kg/m2. The stem survival rate at five years was 99.1% with one revision due to recurrent dislocations. Mean HOOS score improved from 40.9 ± 18.3 preoperatively to 81.5 ± 19.7 at three months, 89.3 ± 10.9 at 12 months, and 89.0 ± 14.0 at five years (all with p < 0.001). No significant correlations were found between age, femoral bone morphology, BMI and HOOS, and the appearance of relevant radiolucencies.

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Periacetabular Bone Densitometry after Total Hip Arthroplasty with Highly Porous Titanium Cups: A 2-Year Follow-Up Prospective Study

Hip International ◽

10.5301/hipint.5000509 ◽

2017 ◽

Vol 27 (6) ◽

pp. 551-557 ◽

Cited By ~ 7

Author(s):

Leo Massari ◽

Alessandro Bistolfi ◽

Pier Paolo Grillo ◽

Alda Borré ◽

Gaetano Gigliofiorito ◽

...

Keyword(s):

Total Hip Arthroplasty ◽

Functional Recovery ◽

Hip Arthroplasty ◽

Harris Hip Score ◽

Radiographic Evaluation ◽

Mineral Density ◽

Cellular Solid ◽

Total Hip ◽

Sf 36

Introduction Trabecular Titanium is an advanced cellular solid structure, composed of regular multiplanar hexagonal interconnected cells that mimic the morphology of the trabecular bone. This biomaterial demonstrated improved mechanical properties and enhanced osteoinduction and osteoconduction in several in vitro and in vivo studies. The aim of this study was to assess Trabecular Titanium osseointegration by measuring periacetabular changes in bone mineral density (BMD) with dual-emission X-ray absorptiometry (DEXA). Methods 89 patients (91 hips) underwent primary total hip arthroplasty (THA) with acetabular Trabecular Titanium cups. Clinical (Harris Hip Score (HHS), SF-36) and radiographic assessment were performed preoperatively, and postoperatively at 7 days and at 3, 6, 12 and 24 months. DEXA analysis was performed only postoperatively, using the BMD values measured at 7 days as baselines. Results After an initial decrease from baseline to 6 months, BMD increased and progressively stabilised in all 3 regions of interest (ROIs). Median (IQR) HHS and SF-36 increased from 48 (39-62) and 49 (37-62) preoperatively to 99 (96-100) and 86 (79-92) at 24 months, indicating a considerable improvement in terms of pain relief, functional recovery and quality of life. BMD patterns and radiographic evaluation showed evident signs of periacetabular bone remodelling and osseointegration; all cups were stable at the final follow-up without radiolucent lines, loosening or osteolysis. No revisions were performed. Conclusions After an initial reduction in periacetabular BMD, all 3 ROIs exhibited stabilisation or slight recovery. Although clinical outcomes and functional recovery proved satisfactory, longer follow-ups are necessary to assess this cup long-term survivorship.

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Total hip arthroplasty after hip joint gunshot injury

Journal of Orthopaedic Surgery ◽

10.1177/2309499019873113 ◽

2019 ◽

Vol 27 (3) ◽

pp. 230949901987311 ◽

Cited By ~ 2

Author(s):

Ozhan Pazarci ◽

Seyran Kilinc ◽

Yalkin Camurcu ◽

Okay Bulut

Keyword(s):

Total Hip Arthroplasty ◽

Hip Joint ◽

Hip Arthroplasty ◽

Short Form ◽

Gunshot Injury ◽

Harris Hip Score ◽

Joint Region ◽

Total Hip ◽

The Mean

Background: Gunshot injury of the hip joint was reported to constitute 2–17% of all extremity firearm injuries. However, there are few studies in the literature related to gunshot injuries of the hip joint. The aim of the current study was to present the results of 10 cases treated with arthroplasty following a gunshot injury to the hip joint together with the recommended treatment algorithm. Methods: Patients with a previous medical history of hip joint region gunshot injury who underwent total hip arthroplasty were retrospectively evaluated. Those with incomplete medical records or who were lost to follow-up were excluded. Patients were classified according to the severity of the previous gunshot injury to the hip joint region. Harris hip score (HHS) and Short Form-12 quality of life score were the main outcome measurements. Postoperative complications encountered during follow-up were recorded. Results: The mean age of the patients at the time of surgery was 29.9 years. The mean preoperative HHS was 25.2 points and it was 65.8 at the final follow-up. Patients with bullet fragments in the hip joint, classified as group 1, had better HHS, whereas those with contaminated hip joint with intestinal flora, classified as group 3, had worst HHS. Conclusion: Hip arthroplasty after hip joint gunshot injury is a good treatment choice in young patients to reduce pain and regain functions. However, very high infection rates can be seen in patients with accompanying intestinal injury.

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Eleven Year Results of Total Hip Arthroplasty in Patients with Secondary Osteoarthritis Due to Slipped Capital Femoral Epiphysis

The Open Orthopaedics Journal ◽

10.2174/1874325001307010158 ◽

2013 ◽

Vol 7 (1) ◽

pp. 158-162 ◽

Cited By ~ 2

Author(s):

Benjamin Schoof ◽

Mustafa Citak ◽

Padhraig F O’Loughlin ◽

Daniel Kendoff ◽

Carl Haasper ◽

...

Keyword(s):

Total Hip Arthroplasty ◽

Health Survey ◽

Hip Arthroplasty ◽

Short Form ◽

Slipped Capital Femoral Epiphysis ◽

Harris Hip Score ◽

Secondary Osteoarthritis ◽

Total Hip ◽

Patient Cohort

Background: Total hip arthroplasty (THA) in patients with a history of Slipped Capital Femoral Epiphysis (SCFE), is typically indicated to address the consequent deformity of the proximal femur and/or acetabulum. It can be a challenging procedure for the orthopaedic surgeon. Previous studies have focused on prevention of osteoarthritis post-SCFE. However, there is a paucity of data on the outcomes of total hip arthroplasty in patients with osteoarthritis secondary to SCFE. This study was performed to assess the mid-term results of total hip arthroplasty in this patient cohort. Materials and Methods: All patients with secondary osteoarthritis due to slipped capital femoral epiphysis, treated with total hip arthroplasty between 1987 and 2005, were included in this retrospective study (n=30). Thirty patients (17 male, 13 female) met the inclusion criteria with one patient lost to follow-up and one unrelated death one year before follow up examination, thereby leaving 28 patients (32 hips) eligible for the study with a mean follow-up time period of 11.2 years. The Harris Hip Score (HHS) and MOS 36 short form health survey (SF36) were determined preoperatively and at most recent follow-up for all patients. Complications were also noted for all cases. Results: The mean Harris Hip Score increased significantly from 47 (32-59; SD=8.3) to 92.3 (65-100; SD=8.2) (p<0.0001). The SF-36 health survey showed an improvement of quality-of-life in all sub-scales. Overall, revision surgery was required in six cases (19 %). Aseptic loosening, leading to implant removal, was noted in five cases. A single-stage revision to address infection was performed in one case. The cumulative survival rate at latest follow-up was 81 %. No other complications were encountered during the study. Conclusions: Despite a higher failure rate, compared to total hip arthroplasty in the treatment of primary osteoarthritis, total hip arthroplasty can be considered a feasible option for patients with secondary osteoarthritis of the hip due to slipped capital femoral epiphysis. The current study demonstrates good outcomes in patients treated with a cementless column-preserving prosthesis, which is of particular relevance for this young patient cohort. However, further clinical prospective randomized studies are warranted to provide more definitive evidence.

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Total hip arthroplasty for dysplastic coxarthrosis using a cementless Wagner Cone stem

Journal of Orthopaedics and Traumatology ◽

10.1186/s10195-021-00578-8 ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Giuseppe Solarino ◽

Giovanni Vicenti ◽

Andrea Piazzolla ◽

Francesco Maruccia ◽

Angela Notarnicola ◽

...

Keyword(s):

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Bone Growth ◽

Hip Osteoarthritis ◽

Harris Hip Score ◽

Radiographic Evaluation ◽

Retrospective Case ◽

Level Of Evidence ◽

Term Survival ◽

Total Hip

Abstract Background Total hip arthroplasty (THA) is currently the best surgical option for hip osteoarthritis secondary to developmental hip dysplasia (DDH); it may be extremely challenging, because of the hypoplasic proximal metaphysis, pathological anteversion, and excessive cervico-diaphyseal angle of the neck at the femoral side. The purpose of this retrospective study was to evaluate the long-term survival and clinical and radiological results of Conus uncemented stems, implanted in patients affected by hip osteoarthritis with Crowe not-type IV secondary to DDH. Material and methods We identified 100 consecutive THAs performed for DDH in 63 women and 24 men, with an average age of 53 years in a single center. Thirteen patients underwent bilateral hip replacement. The patients’ mean body mass index was 29.8 kg/m2 (range 27.1–35.6 kg/m2). The main indications for surgery were severe hip pain and considerable functional impairment: the preoperative Harris Hip Score was 29.5 on average (range 22–61). Radiologically, 8 hips were classified as Crowe I, 43 hips as Crowe II, and 49 hips as Crowe III. In all cases, we implanted the Wagner femoral cone prosthesis using the direct lateral approach; in the attempt to reestablish native hip biomechanics, 66 stems were 135° and 34 were 125°. Results The mean follow-up of the study was 11.7 years (range 2.2–21.8 years). Harris Hip Score increased to a mean value of 71.5 points (range 52–93 points). Radiographic evaluation demonstrated osteointegration of the implant with stable bone growth observed at the stem–endosteum interface; signs of bone readaptation and thinning of the femoral calcar were present in nine hips. None of the patients underwent revision for septic or aseptic loosening of the stem; none sustained a periprosthetic fracture. Conclusions This study confirms the theoretical advantages that suggest the choice of the Wagner cone when technical difficulties during prosthetic surgery are expected owing to abnormal proximal femoral anatomy. Level of evidence Level IV, retrospective case study

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Prospective Short-Term and Return-to-Sports Results of a Novel Uncemented Short-Stem Hip Prosthesis with Metaphyseal Anchorage

Journal of Clinical Medicine ◽

10.3390/jcm9061972 ◽

2020 ◽

Vol 9 (6) ◽

pp. 1972

Author(s):

Robert Breuer ◽

Rainer Fiala ◽

Nina Schrenk ◽

Thomas M. Tiefenboeck

Keyword(s):

Los Angeles ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Activity Level ◽

Short Stem ◽

Harris Hip Score ◽

Return To Sports ◽

Short Term ◽

Total Hip

Short-stem hip prostheses were developed to treat active patients requiring total hip arthroplasty (THA). This study provides short-term data about a short-stem total hip arthroplasty system. Functional and radiological outcomes as well as return to sports and activity level were assessed. A series of 55 patients was primarily included. Data were available for 47 patients at an average follow-up of 38 ± 4.6 months. The back-to-sports analysis showed a 98% return-to-sports rate (46/47 patients). The average time for return to sports was 13 weeks (± 8) postoperatively. Five patients (10.6%) were more active postoperatively. The Harris Hip Score (HHS) improved from 34.8 (±9.4) preoperatively to 94.7 (±8.4, p ≤ 0.001) and the University of California, Los Angeles (UCLA) score improved from 4.5 (±1.8) to 6.9 (±1.9) (p ≤ 0.001). The High Activity Arthroplasty Score (HAAS) was 12 (±3.6) at 3-year follow-up. Pre- and postoperative UCLA and postoperative HHS and HAAS scores had a positive influence on the return-to-sports rate (p ≤ 0.05). The collection of radiographic data during all postoperative follow-ups showed no signs of radiolucent lines or bone fissures. The complication rate was at 5%. Short-stem systems are equaling conventional prostheses and offer benefits regarding soft tissue and bone stock preservation. Fast recovery and return to sports can be achieved.

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Retrospective Clinical and Radiological Outcomes of Total Hip Arthroplasty in 51 Patients After a Mean 8.2 Years Using the Nanos® Short-stem Prosthesis

Surgical Technology Online ◽

10.52198/21.sti.39.os1473 ◽

2021 ◽

Vol 39 ◽

Author(s):

Christian Fischer ◽

◽

Julia Dietz ◽

Karl-Stefan Delank ◽

Alexander Zeh ◽

...

Keyword(s):

Patient Satisfaction ◽

Total Hip Arthroplasty ◽

Hip Arthroplasty ◽

Survival Rates ◽

Short Stem ◽

Harris Hip Score ◽

Leg Length ◽

Total Hip ◽

The Mean

Introduction: Over the past several years, femoral short-stem hip implants have become more popular as a treatment option in the field of primary hip arthroplasty for younger and more active patients. Current data on clinical outcomes and the implant survival rates in patients with short-stem implants cover a maximum of five to six years. The aim of this study was to assess the survival rates, as well as clinical and functional outcomes, in total hip arthroplasty (THA) using the Nanos® short-stem implant (Smith & Nephew, Marl, Germany) over a follow-up period exceeding 5 y. Materials and Methods: This single-center retrospective study included the first 100 patients who were treated at the Department of Orthopedics at the University Hospital Halle (Saale) between January 2008 and February 2009. Ultimately, the complete data of 51 patients (54 hips) were reviewed. The follow-up period was from May to November 2017. We evaluated patient satisfaction regarding pain and function using a grading system. The Harris Hip Score and Forgotten Joint Score were obtained to evaluate functional outcome after THA. Postoperative radiographic evaluation included the measurement of leg-length discrepancy, changes in the shaft axis, femoral offset and horizontal or vertical center of rotation. Potential postoperative shaft angulation or axial shaft migration was also determined. Radiographic images were checked for radiolucent lines and heterotopic ossification using the classification systems outlined by Green and Brooker. Results: The average follow-up was 97.8 months (8.2 y). The mean patient age at follow-up was 68 y and the body mass index was 28.2 kg/m2. The mean Harris hip score at follow-up was 92.0 and the Forgotten Joint Score was 91.7 %. Survey results showed that patient satisfaction and pain perception were rated very good. No significant change in leg length was observed (mean: 0.1 mm shortening). Overall, a rather varus stem positioning was detected postoperatively (mean: 3.1°). The femoral offset was slightly reduced on average in the entire patient group (mean: -1.8 mm). In the horizontal plane, lateralization of the center of rotation was detected overall (mean: 0.7 mm). In the vertical plane, cranialization was noted (mean: 1.4 mm). The CCD angle did not change. There was no further stem migration postoperatively. Radiolucent lines occurred in 10 cases in Gruen zones 1 and 7. Heterotopic ossification occurred in stages 1 to 3 according to the Brooker classification system. We found no cases of aseptic loosening or other reasons for revision. Conclusion: The outcomes after a mean follow-up of 97.8 months (8.2 y) showed that high levels of patient satisfaction and functional outcome can be achieved with the use of a short-stem endoprosthesis. Sufficient restoration of the patient's individual anatomy paired with high survival rates makes this short-stem prosthesis a reliable implant in total hip arthroplasty.

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A prospective randomised comparison of earlier function after total hip arthroplasty with a mini posterior approach or supercapsular percutaneously-assisted total hip approach: a gait analysis study

Hip International ◽

10.1177/11207000211018440 ◽

2021 ◽

pp. 112070002110184

Author(s):

Andrey A Korytkin ◽

Younes M El Moudni ◽

Yana S Novikova ◽

Kirill A Kovaldov ◽

Ekaterina A Morozova

Keyword(s):

Total Hip Arthroplasty ◽

Gait Analysis ◽

Hip Arthroplasty ◽

Posterior Approach ◽

Gait Velocity ◽

Harris Hip Score ◽

Kinematic Parameters ◽

Gait Patterns ◽

Total Hip

Background: The supercapsular percutaneously-assisted total hip (SuperPATH) approach is a muscle sparing surgical technique for total hip arthroplasty (THA). The literature reports good clinical and functional results of the SuperPATH technique in the short term. We aimed to compare early outcomes and gait analysis of THA using the mini posterior approach (MPA) and supercapsular percutaneously-assisted total hip (SuperPATH) approach. Methods: 44 patients who underwent THA, were randomly allocated to either MPA or SuperPATH. The data were then collected prospectively (preoperatively and postoperatively at 6 weeks). Plain anteroposterior radiographs of the pelvis and instrumental gait analysis were obtained. The visual analogue scale (VAS), Harris Hip Score (HHS) and Hip disability and Osteoarthritis Outcome Scores (HOOS) were used to assess functional and clinical outcomes. Results: No significant difference was found in patients’ surgical outcomes. Patients in the SuperPATH group had less pain according to the VAS score at follow-up than the MPA group ( p < 0.01). There was also a significant improvement in HHS and HOOS scores for all patients ( p < 0.001) with the SuperPATH group showing superior changes. The comparison of mean differences in gait velocity between preoperative and 6 weeks postoperative result, revealed improvement in the SuperPATH group over the MPA group ( p = 0.06). Limping was more persistent in the MPA group. Kinematic parameters demonstrated improved hip joint excursion slightly higher in the MPA group. There was no significant improvement in kinetic and kinematic parameters at different walking moments for all patients at 6 weeks compared to preoperative gait patterns. Conclusions: SuperPATH and MPA both show excellent results. This study reveals that the SuperPATH technique was associated with lower postoperative pain levels, and higher physical function and quality of life. Improved functional outcomes allowed earlier postoperative rehabilitation and faster recovery. Specific improvement in gait patterns were identified with nonsignificant differences between the 2 approaches at 6 weeks follow-up.

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Excellent Clinical and Radiographic Outcomes with Direct Superior Total Hip Arthroplasty with a Minimum of Two-Year Follow Up

Surgical Technology Online ◽

10.52198/21.sti.38.os1336 ◽

2021 ◽

Author(s):

Moritz Sharabianlou ◽

Prerna Arora ◽

Derek Amanatullah

Keyword(s):

Total Hip Arthroplasty ◽

Functional Recovery ◽

Hip Arthroplasty ◽

Case Series ◽

Harris Hip Score ◽

Timed Up And Go ◽

Total Hip ◽

Radiologic Evaluation ◽

Superior Approach

This study aims to establish the midterm safety and performance for the direct superior approach to minimally invasive surgery total hip arthroplasty (MIS-THA). We used a unicentric, single-surgeon, retrospective, consecutive case series analysis of the first 40 patients who received primary unilateral direct superior MIS-THA. Special attention was given to functional recovery by measuring Harris Hip Score (HHS) and timed-up-and-go (TUG) with a mean follow up of 2.2 ± 0.4 years. A radiologic evaluation was performed. HHS and TUG improved significantly at three months and one year (p < 0.001). All components were placed within the Lewinnek safe zone with no change position or signs of loosening at two years. With a minimum of two years of follow up, the direct superior approach appears to be safe without any obvious or consistent postoperative complications—clinically or radiographically—with excellent functional recovery. Additionally, our subgroup analysis supported no late learning curve effect.

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