Intra-prosthetic dislocation of dual mobility hip prosthesis: an original and unusual complication

A 78-year-old female presented with dislocation of a dual mobility hip prosthesis. On standard radiographs after closed reduction, the hip prosthesis appeared to be properly reduced, but clinically the hip was unstable. A Computed Tomography showed a round foreign body, that was in fact a dislocation of the intra-prosthetic implant. This was confirmed intra-operatively during revision surgery. Intra-prosthetic dislocation is a specific complication of dual mobility system. Classically, it's a late complication, linked to the wear of retention area of the polyethylene insert. In this case report we describe an unusual reason of intra-prosthetic dislocation caused by a reduction maneuver of a dislocated dual mobility total hip prosthesis, which to our knowledge has never been documented with Computed Tomography imagery and intra operative pictures. The aim of this article is to analyse the advantages and complications of this implant and to establish recommendations. Dealing with an intra-prosthetic dislocation of a dual mobility hip prosthesis, we recommend attempting a reduction under general anesthesia to avoid mechanical complications. In case of persistent instability after reduction, we recommend performing a Computed Tomography scan.
Source: Journal of Radiology Case Reports - Category: Radiology Source Type: research

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Conclusion: This position statement provides practical guidance regarding patient selection and the technical performance of BT for severe asthma.
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ConclusionPatients with an increased femoral anteversion angle (>  30°) had inferior postoperative clinical outcomes, including greater patellar laxity, a higher rate of residual J-sign and lower patient-reported outcomes after medial patellofemoral ligament reconstruction and combined tibial tubercle osteotomy for the treatment of recurrent patellar instabilit y.Level of evidenceIII, retrospective cohort study.
Source: Knee Surgery, Sports Traumatology, Arthroscopy - Category: Orthopaedics Source Type: research
Publication date: Available online 3 September 2019Source: Journal of Oral and Maxillofacial Surgery, Medicine, and PathologyAuthor(s): Takashi Maehara, Yuka Murakami, Shintaro Kawano, Yurie Mikami, Tamotsu Kiyoshima, Toru Chikui, Noriko Kakizoe, Ryusuke Munemura, Seiji NakamuraAbstractOsteoid osteoma is a benign bone-forming tumor and characterized by its limited growth potential, not exceeding 2 cm. The radiological hallmark of this tumor is a nidus, which is a small round area of relative radiolucency. Osteoid osteoma can involve any bone but is most commonly found in long bones and is extremely rare in the head ...
Source: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology - Category: ENT & OMF Source Type: research
In this report, we present the long-term functional and radiological outcomes following nonoperative treatment of such a fracture in a 5-year-old female. The patient was referred to our tertiary centre with radiological progression of angulation from 10° to 35° within 5 weeks of the injury, despite wearing a rigid collar. She had no neurological compromise. Although we examined the fracture under general anaesthetic, and subsequently applied halo traction, there was no effect on alignment. The halo device was removed after 11 days and a rigid collar was fitted again. The patient had no pain or neurological symptoms...
Source: Journal of Pediatric Orthopaedics B - Category: Orthopaedics Tags: SPINE Source Type: research
Yad R Yadav, Vijay S Parihar, Shailendra Ratre, Amitesh Dubey, Sonpal Jindel, Mashoo N DubeyNeurology India 2019 67(2):510-515 Although most of the cases of atlanto-axial dislocation (AAD) and basilar invasion can be managed by posterior approaches in the recent times, anterior decompression with stabilization is required in selected patients who persist with irreducible AAD even after manipulation of the C1-C2 facet joint under general anesthesia. A single stage endoscopic trans-oral decompression and stabilization can be used in such patients. It has not been described so far to the best of authors' knowledge. This ...
Source: Neurology India - Category: Neurology Authors: Source Type: research
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Source: Frontiers in Physiology - Category: Physiology Source Type: research
Mark E. Gray1,2*, James Meehan2,3, Paul Sullivan4, Jamie R. K. Marland4, Stephen N. Greenhalgh1, Rachael Gregson1, Richard Eddie Clutton1, Carol Ward2, Chris Cousens5, David J. Griffiths5, Alan Murray4 and David Argyle1 1The Royal (Dick) School of Veterinary Studies and Roslin Institute, University of Edinburgh, Edinburgh, United Kingdom 2Cancer Research UK Edinburgh Centre and Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom 3School of Engineering and Physical Sciences, Institute of Sensors, Signals and Systems, Heriot-Watt Univer...
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Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusion Trochlear pain (trochleodynia) is becoming recognized as a set of disorders that can present in isolation or concomitantly with co-existing migraines, tension-type headaches, or other headache disorders, possibly explaining subpar symptom control in a small but significant number of individuals globally. Trochleodynia features unilateral periocular pain that may involve the ipsilateral hemicranium. Pain exacerbation occurs with trochlear palpation and supraduction of the affected eye especially in the adducted position. Trochleodynia may respond to oral NSAIDs if symptoms are mild and of recent onset. While ora...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
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