Main complications of hip arthroplasty: pictorial essay

Júnior, Dair Jocely Enge; Castro, Adham do Amaral e; Fonseca, Eduardo Kaiser Ururahy Nunes; Baptista, Eduardo; Padial, Michel Bayouth; Rosemberg, Laércio Alberto

doi:10.1590/0100-3984.2018.0075

“…Longo and Koeneman [ 29 ] predicted that radiography, to date the most utilized technique for the non-destructive examination of conventional metallic implanted orthopaedic prostheses [ 30 ], would become a powerful in vitro and/or in vivo technique to detect and characterize minor changes of the structural integrity of complex composite implanted prostheses; however, the state of art has shown that this goal has not been achieved, despite the huge potential offered by X-rays to monitor with unbeatable accuracy the damage initiation and progression in this class of materials under dry environments [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Detection and Imaging of Damages and Defects in Fibre-Reinforced Composites by Magnetic Resonance Technique

Alves

¹

,

Oliveira

²

,

Tannús

³

et al. 2021

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Defectively manufactured and deliberately damaged composite laminates fabricated with different continuous reinforcing fibres (respectively, carbon and glass) and polymer matrices (respectively, thermoset and thermoplastic) were inspected in magnetic resonance imaging equipment. Two pulse sequences were evaluated during non-destructive examination conducted in saline solution-immersed samples to simulate load-bearing orthopaedic implants permanently in contact with biofluids. The orientation, positioning, shape, and especially the size of translaminar and delamination fractures were determined according to stringent structural assessment criteria. The spatial distribution, shape, and contours of water-filled voids were sufficiently delineated to infer the amount of absorbed water if thinner image slices than this study were used. The surface texture of composite specimens featuring roughness, waviness, indentation, crushing, and scratches was outlined, with fortuitous artefacts not impairing the image quality and interpretation. Low electromagnetic shielding glass fibres delivered the highest, while electrically conductive carbon fibres produced the poorest quality images, particularly when blended with thermoplastic polymer, though reliable image interpretation was still attainable.

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“…Longo and Koeneman [29] predicted that radiography, to date the most utilized technique for the non-destructive examination of conventional metallic implanted orthopaedic prostheses [30], would become a powerful in vitro and/or in vivo technique to detect and characterize minor changes of the structural integrity of complex composite implanted prostheses; however, the state of art has shown that this goal has not been achieved, despite the huge potential offered by X-rays to monitor with unbeatable accuracy the damage initiation and progression in this class of materials under dry environments [31,32].…”

Section: Introductionmentioning

confidence: 99%

Detection and Imaging of Damages and Defects in Fibre-Reinforced Composites by Resonance Magnetic Technique

Alves¹,

Oliveira²,

Tannús³

et al. 2020

Preprint

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Defectively manufactured and deliberately damaged composite laminates fabricated with different continuous reinforcing fibres (respectively, carbon and glass) and polymer matrices (respectively, thermoset and thermoplastic) were inspected in magnetic resonance imaging equipment. Two pulse sequences were evaluated during non-destructive examination conducted in saline solution-immersed samples to simulate load-bearing orthopaedic implants permanently in contact with biofluids. The orientation, positioning, shape, and especially the size of translaminar and delamination fractures were determined according to stringent structural assessment criteria. The spatial distribution, shape, and contours of water-filled voids were sufficiently delineated to infer the amount of absorbed water if thinner image slices than this study were used. The surface texture of composite specimens featuring roughness, waviness, indentation, crushing, and scratches was outlined, with fortuitous artefacts not impairing the image quality and interpretation. Low electromagnetic shielding glass fibres delivered the highest, while electrically conductive carbon fibres produced the poorest quality images, particularly when blended with thermoplastic polymer, though reliable image interpretation was still attainable.

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“…[5,7]. As the procedure-specific factors, acetabular cup diameter, femoral head diameter, femoral neck length, head-to-cup ratio, procedure type, and the use of a liner were analyzed [8]. Although treatment outcome highly depends on the quality of surgical reconstruction of anatomical and biomechanical relations of the bone tissue [3], HD was noticed to occur even in the absence of procedure-specific mistakes.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, patientspecific risk factors for HD, including advanced age, high body mass index, comorbidities (especially psychiatric and neurologic diseases), low physical activity level, preoperative use of walking aids (PUWA), impaired compliance (failure to comply to permitted activities after surgery), and absence of exercise therapy, were suggested as important [7,9,10,11]. According to the most recent studies, the length of stay (LOS) after THA has been shortened [4,7,8]. Out of many different patients' and providers' characteristics that determine LOS, comorbidity is the most documented one [12,13].…”

Section: Introductionmentioning

confidence: 99%

Dislocation after primary unilateral total hip arthroplasty: Hip geometry and risk factors (a matched cohort analysis)

Zečević-Luković

¹

,

Mladenović

²

,

Kostić

³

et al. 2020

Srp Arh Celok Lek

2

0

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Introduction/Objective. The purpose of this study was to determine if patient-related factors, such as length of stay in hospital, and preoperative usage of walking aids, and geometrical factors, measured with antero-posterior radiographs of hip, affect the risk of hip dislocation after total hip arthroplasty. Methods. A total of 36 of 433 (8.31%) patients with hip dislocation were identified in the institutional registry during the two years period. The data for patients with and without hip dislocation were matched and compared. Results Hip dislocation more often occurred in patients who had used the walking aids before the operation compared to the ones who had not (p < 0.001). Also, the difference in the number of HD was noticed between the patients who stayed longer in the hospital after THA (p < 0.001) The patients with higher acetabular inclination angle (p < 0.005) and height of greater trochanter (p < 0.001) on radiographs had been more prone to hip dislocation. In addition to this, the "safe-zone" was not identified in our study (p > 0.005) Conclusion. Several factors, which influence hip dislocation, were identified in this study: patients characteristics and radiograph characteristics. Both groups of factors require attention and monitoring in future studies.

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Main complications of hip arthroplasty: pictorial essay

Cited by 18 publications

References 11 publications

Detection and Imaging of Damages and Defects in Fibre-Reinforced Composites by Magnetic Resonance Technique

Detection and Imaging of Damages and Defects in Fibre-Reinforced Composites by Magnetic Resonance Technique

Detection and Imaging of Damages and Defects in Fibre-Reinforced Composites by Resonance Magnetic Technique

Dislocation after primary unilateral total hip arthroplasty: Hip geometry and risk factors (a matched cohort analysis)

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