scholarly journals Acetabular Version Measurement in Total Hip Arthroplasty: the Impact of Inclination and the Value of Multi-Planar CT Reformation

2015 ◽  
Vol 11 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Michael Loftus ◽  
Yan Ma ◽  
Bernard Ghelman
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Acetabular Version ◽  
Total Hip ◽  
The Impact ◽  
Version Measurement

scholarly journals The influence of bone quality on radiological outcome in 50 consecutive acetabular fractures treated with a pre-contoured anatomic suprapectineal plate

2021 ◽  
Author(s):  
Maximilian J. Hartel ◽  
Tareq Naji ◽  
Florian Fensky ◽  
Frank O. Henes ◽  
Darius M. Thiesen ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Bone Mass ◽  
Bone Quality ◽  
Hip Arthroplasty ◽  
Mass Density ◽  
Acetabular Fractures ◽  
Bone Mass Density ◽  
Radiological Outcome ◽  
Total Hip ◽  
The Impact

Abstract Purpose To investigate the range of indications of an anatomical-preshaped three-dimensional suprapectineal plate and to assess the impact of the bone mass density on radiologic outcomes in different types of acetabular fractures. Patients and methods A consecutive case series of 50 acetabular fractures (patient age 69 ± 23 years) treated with suprapectineal anatomic plates were analyzed in a retrospective study. The analysis included: Mechanism of injury, fracture pattern, surgical approach, need for additional total hip arthroplasty, intra- or postoperative complications, as well as bone mass density and radiological outcome on postoperative computed tomography. Results Most frequently, anterior column fracture patterns with and without hemitransverse components as well as associated two column fractures were encountered. The anterior intrapelvic approach (AIP) was used in 98% (49/50) of the cases as primary approach with additional utilization of the first window of the ilioinguinal approach in 13/50 cases (26%). Determination of bone density revealed impaired bone quality in 70% (31/44). Postoperative steps and gaps were significantly greater in this subgroup (p < 0.05). Fracture reduction quality for postoperative steps revealed anatomic results in 92% if the bone quality was normal and in 46% if impaired (p < 0.05). In seven cases (14%), the plate was utilized in combination with acute primary arthroplasty. Conclusion A preshaped suprapectineal plate provides good radiological outcomes in a variety of indications in a predominantly geriatric cohort. Impaired bone quality has a significantly higher risk of poor reduction results. In cases with extensive joint destruction, the combination with total hip arthroplasty was a valuable option.

scholarly journals The impact of reducing the femoral stem length in total hip arthroplasty during gait

2021 ◽  
Author(s):  
Anatole Vilhelm Wiik ◽  
Adeel Aqil ◽  
Bilal Al-Obaidi ◽  
Mads Brevadt ◽  
Justin Peter Cobb
Keyword(s):  
Total Hip Arthroplasty ◽  
Gait Analysis ◽  
Hip Arthroplasty ◽  
Femoral Stem ◽  
Short Stem ◽  
Stem Length ◽  
Practical Consideration ◽  
Total Hip ◽  
Long Stem ◽  
The Impact

Abstract Aim The length of the femoral stem in total hip arthroplasty (THA) is a practical consideration to prevent gait impairment. The aim of this study was to determine if reducing the femoral stem length in THA would lead to impaired gait biomechanics. Methods Patients uniformly with the same brand implant of differing lengths (100 mm vs 140–166 mm) were taken retrospectively from a prospective trial introducing a new short stem. Twelve patients without any other disorder to alter gait besides contralateral differing length stem THA were tested at differing gradients and speed on a validated instrumented treadmill measuring ground reaction forces. An anthropometrically similar group of healthy controls were analysed to compare. Results With the same posterior surgical approach, the offset and length of both hips were reconstructed within 5 mm of each other with an identical mean head size of 36 mm. The short stem was the last procedure for all the hips with gait analysis occurring at a mean of 31 and 79 months postoperatively for the short and long stem THA, respectively. Gait analysis between limbs of both stem lengths demonstrated no statistical difference during any walking condition. In the 90 gait assessments with three loading variables, the short stem was the favoured side 51% of the time compared 49% for the long stem. Conclusion By testing a range of practical walking activities, no lower limb loading differences can be observed by reducing the femoral stem length. A shorter stem demonstrates equivalence in preference during gait when compared to a reputable conventional stem in total hip arthroplasty.

scholarly journals Augmented Rehabilitation Program for Young Patients Following Total Hip Arthroplasty

2021 ◽  
Author(s):  
Ahmed Negm ◽  
Milad Yavarai ◽  
Gian Jhangri ◽  
Robert Haennel ◽  
Allyson Jones
Keyword(s):  
Physical Activity ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Intervention Group ◽  
Young Patients ◽  
Rehabilitation Program ◽  
Control Group ◽  
Total Hip ◽  
The Impact

Abstract BackgroundThe increase rate seen in Total Hip Arthroplasty (THA) for younger patients has implications for future rehabilitation demands for primary and revision THA surgery. This study aims to determine the impact of a 6-week post-operative rehabilitation program designed for THA patients ≤ 60 years on physical activity (PA) and function compared to age- and a sex-matched control group received usual postoperative care at 12-week post-THA. MethodsIn this quasi-experimental study, a cohort of THA candidates was recruited during their 6-week postoperative visit to their surgeons. The out-patient rehabilitation program consisted of 12 structured exercise classes (2 hrs/class) over 6 weeks. Physical activity was assessed using Sense Wear Pro ArmbandTM [SWA]. Participants completed the Hip Osteoarthritis Outcome Score (HOOS), and THA satisfaction questionnaire before and immediately after the intervention. ResultsThe intervention group took significantly more steps/day at the follow-up compared to baseline. The intervention group had a higher mean change in the number of weekly PA bouts than the control group. Within the intervention groups, all HOOS subscales were significantly higher at the follow-up compared to baseline. ConclusionThe augmented rehabilitation program may have immediate effects on pain relief and symptom reduction for patients (≤60 years) following THA.

scholarly journals The influence of bearing surfaces on revisions due to dislocations in total hip arthroplasty

2021 ◽  
Vol 32 (9) ◽  
Author(s):  
Francesco Castagnini ◽  
Barbara Bordini ◽  
Monica Cosentino ◽  
Cristina Ancarani ◽  
Federica Mariotti ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Lower Risk ◽  
Time Distribution ◽  
Total Hip ◽  
Arthroplasty Registry ◽  
Metal On Metal ◽  
The Impact ◽  
Frequent Reason ◽  
Ceramic On Ceramic

Abstract Introduction Recurrent dislocations are still the most frequent reason for revision in total hip arthroplasty (THA). The impact of bearing surfaces on dislocations is still controversial. We hypothesized that: (1) bearing surfaces influence the revisions due to dislocations; (2) ceramic-on-ceramic reduced the revisions for dislocations in adjusted models; (3) Delta-on-Delta bearings reduced the revisions for dislocations in comparison to surfaces with cross-linked polyethylene. Materials and methods The regional arthroplasty registry was enquired about bearing surfaces and revisions for dislocations and instability. Unadjusted and adjusted rates were provided, including sex, age (<65 years or ≥65 years), head diameter (≤28 mm or >28 mm; <36 mm or ≥36 mm) as variables. 44,065 THAs were included. Results The rate of revisions for dislocations was significantly lower in ceramic-on-ceramic and metal-on-metal bearings (unadjusted rates). After adjusting for age, sex, and head size (36 and 28 mm), hard-on-hard bearings were protective (p < 0.05): ceramic-on-ceramic had a lower risk of revisions due to dislocation than ceramic-on-polyethylene (HR 1.6, 95% CI 1.2–2.2 p = 0.0009). The rate of revisions for dislocation was similar in bearings with cross-linked polyethylene and Delta-on-Delta articulations, in unadjusted and adjusted models. Conclusion Bearings with conventional polyethylene were more predisposed to dislocations. Currently adopted bearings exerted no significant influence on revisions due to dislocations. These findings could be primarily related to wear, but due to the time distribution, soft tissue envelopes and surface tension may also play a role. Pre-clinical biomechanical evaluations and prospective matched cohort studies are required to draw definitive conclusions.

The Impact of Modularity in Total Hip Arthroplasty

1995 ◽  
Vol &NA; (319) ◽  
pp. 77???84 ◽  
Author(s):  
Michael J. Chmell ◽  
David Rispler ◽  
Robert Poss
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip ◽  
The Impact

scholarly journals Short Term Results of Total Hip Arthroplasty using the Impact Modular Hip System.

1995 ◽  
Vol 44 (4) ◽  
pp. 1229-1232
Author(s):  
Masatoshi Yamada ◽  
Masatoshi Naito ◽  
Minoru Ikeda ◽  
Kazuhiko Imai ◽  
Kousuke Ogata
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Short Term ◽  
Total Hip ◽  
The Impact

The Impact of Femoral Component Cementation on Fracture and Mortality Risk in Elective Total Hip Arthroplasty

2022 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Adam I. Edelstein ◽  
Eric L. Hume ◽  
Liliana E. Pezzin ◽  
Emily L. McGinley ◽  
Timothy R. Dillingham
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Component ◽  
Hip Arthroplasty ◽  
Mortality Risk ◽  
Total Hip ◽  
The Impact

scholarly journals Metal on Metal Bearing in Total Hip Arthroplasty and Its Impact on Synovial Cell Count

2020 ◽  
Vol 9 (10) ◽  
pp. 3349
Author(s):  
Henrik C. Bäcker ◽  
Chia H. Wu ◽  
David Krüger ◽  
Clemens Gwinner ◽  
Carsten Perka ◽  
...  
Keyword(s):  
Synovial Fluid ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Periprosthetic Joint Infection ◽  
Joint Infection ◽  
Control Group ◽  
Total Hip ◽  
Metal On Metal ◽  
Matching Criteria ◽  
The Impact

Introduction: The effect of different bearings on synovial white blood cell (WBC) count and polymorphonuclear percentage (PMN%) in aspirations remains unclear. Therefore, this study investigates the impact of aseptic Metal-on-Metal (MoM) bearing on synovial fluid. Methods: We searched our arthroplasty registry for aseptic painful THAs with MoM bearings between 2011 and 2018. Then, a case-matched control group was selected with septic and aseptic Total Hip Arthroplasty (THA) with ceramic on a polyethylene (PE) bearing. The matching criteria consisted of gender, age +/−10 years, and time of aspiration (+/−2years). Periprosthetic Joint Infection (PJI) was defined according to the Infectious Diseases Society of America (IDSA), and Musculoskeletal Infection Society (MSIS) using bacterial cultures, sonication and histology. Results: In total, 19 patients who underwent hip aspiration with MoM bearing were identified. Five patients had to be excluded due to insufficient synovial fluid obtained (n = 2) or bacterial growth after sonication that was initially negative with the standard microbiological cultures (n = 3). As such, 14 were included. These patients were matched with 14 aseptic and 14 septic THAs with ceramic on a PE bearing, which constituted the control group. The mean serum chrome level was 20.0 ± 15.5 nmol/L and cobalt level 18.4 ± 22.1 nmol/L. The synovial WBC and PMN% varied significantly between MoM bearing group and the aseptic THA ceramic PE group (both p < 0.001), as well as the septic THA group (WBC p = 0.016, PMN% p < 0.001). Furthermore, the septic THA group had significantly higher CRP values than the aseptic MoM group (p = 0.016). Conclusion: MoM bearing shows significantly higher synovial WBC and PMN% when compared to aseptic THA with ceramic on PE bearing above the MSIS cut-off. This is an important consideration when diagnosing periprosthetic joint infection using the MSIS guidelines.

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