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acetabular reconstruction

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https://www.readbyqxmd.com/read/29428321/cement-augmentation-in-the-proximal-femur-to-prevent-stem-subsidence-in-revision-hip-arthroplasty-with-paprosky-type-ii-iiia-defects
#1
Shang-Wen Tsai, Cheng-Fong Chen, Po-Kuei Wu, Chao-Ming Chen, Wei-Ming Chen
BACKGROUND: Subsidence remains a common complication after revision hip arthroplasty which may lead to prolonged weight-bearing restrictions, leg-length discrepancies or considerable loss of function. We evaluated the effectiveness of cement augmentation in the proximal femoral metaphysis during a revision of femoral components to prevent post-operative stem subsidence. METHODS: Forty patients were enrolled. Follow-up averaged 67.7 months (range: 24-149). Twenty-seven patients had a Paprosky type II defect and 13 had a type IIIa defect...
February 7, 2018: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29423250/labral-augmentation-with-ligamentum-capitis-femoris-presentation-of-a-new-technique-and-preliminary-results
#2
Jan Weidner, Michael Wyatt, Martin Beck
Preservation of an intact labrum and reconstruction of a deficient or worn acetabular labrum are accepted techniques in modern hip surgery. If the remaining labrum is very thin, its intact tip can be preserved and its volume restored with a ligamentum teres graft. Technique and preliminary results of this augmentation technique are presented. Labral augmentation was performed in 16 hips (11 rights) in 16 patients (7 males, mean age 29 years) during surgical dislocation for treatment of femoroacetabular impingement...
January 2018: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/29413190/editorial-commentary-wanted-dead-or-alive-primary-allograft-labral-reconstruction-of-the-hip-is-as-successful-if-not-more-successful-than-primary-labral-repair
#3
EDITORIAL
Thomas Youm
Primary repair of acetabular labral tears has been the gold standard treatment with excellent short to mid-term results. Autograft and allograft labral reconstruction has been described mostly in the revision labral surgery setting with good short-term results. A recent study has compared primary labral reconstruction to labral repair head-to-head in the same patient. Primary labral reconstruction may be a suitable alternative to labral repair in patients with symptomatic labral pathology. Concerns remain, however, about sacrificing living labral tissue for dead allograft tissue for the long term...
February 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29396805/standardized-three-dimensional-computerised-tomography-scanner-reconstructions-increase-the-accuracy-of-acetabular-fracture-classification
#4
Amer Sebaaly, Guillaume Riouallon, Mourad Zaraa, Peter Upex, Véronique Marteau, Pomme Jouffroy
PURPOSE: Evaluate the role of four standardized 3D reconstruction views in the accurate diagnosis of acetabular fractures. MATERIALS AND METHODS: Thirty-five acetabular fracture cases were selected from a tertiary centre database. Fourteen reviewers with different experience level evaluated this set of images which were provided in axial 2D views and multiplanar reconstruction (MPR) without 3D views in the first two readings then the standardized 3D views were added for the subsequent two readings...
February 2, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29390479/biaxial-reduction-technique-for-the-medially-displaced-quadrilateral-surface-in-acetabular-fracture-through-the-modified-iliofemoral-approach-an-observational-study
#5
Byung Hoon Lee
Treatment of acetabular fractures is technically demanding injuries. The complex surgical approaches and special equipment have been introduced for achieving accurate anatomical reduction.The aim of the study was to present our experiences of using a newly operative technique to achieve accurate reduction of articular dome impaction and of the quadrilateral surface without special equipment or traction device in reference to fracture reduction and fixation, technical aspects, and the incidence of complications...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390346/pipkin-type-iii-femoral-head-fracture-dislocation-combined-with-complicated-acetabular-fracture-a-rare-case-report-and-literature-review
#6
Bei Zhao, Hao Li, Jun Yan, Li-Ren Han, Xiao-Fei Yang
RATIONALE: Pipkin III fracture, which is characterized by high risk of avascular necrosis of the femoral head, is extremely rare. It is more difficult to treat and has a worse prognosis when accompanied with severe acetabular fractures. Few studies show that both Pipkin type III femoral head fracture-dislocation and complicated acetabular fracture presented in one patient. PATIENT CONCERNS: A 34-year-old male suffered a terrible traffic accident with a serious damage to the left side when he was sitting in the car's cockpit...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390269/a-new-strategy-to-reconstruct-type-iii-acetabular-bone-defect-associated-with-inflammatory-pseudotumor-combined-medial-and-lateral-acetabular-bone-grafting-a-case-report
#7
Jing Wang, Dejiu Wang, Jiang Du, Zhen Lin
RATIONALE: Inflammatory pseudotumor has been commonly reported in patients undergoing total hip arthroplasty (THA). PATIENT CONCERNS: We reported a patient who had a massive intra-pelvic pseudotumour and acetabular bone defect underwent two-stage revision THA. DIAGNOSES: A new surgical strategy for pseudotumor after THA is performed. INTERVENTIONS: Thorough debridement intra-pelvic pseudotumour via Smith-Petersen approach, bone grafting on iliac medial surface and plate-screw internal fixation were performed in the first stage, followed by revision of the loosened prosthesis to a cementless primary prosthesis in the second stage...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29373451/does-total-hip-arthroplasty-reduce-the-risk-of-secondary-surgery-following-the-treatment-of-displaced-acetabular-fractures-in-the-elderly-compared-to-open-reduction-internal-fixation-a-pilot-study
#8
Michael J Weaver, Raymond Malcolm Smith, David W Lhowe, Mark S Vrahas
OBJECTIVES: The goal of open reduction and internal fixation (ORIF) is to anatomically reduce the facture and maintain a congruent hip joint. However, ORIF in the elderly is technically challenging. Therefore, there are advocates for acute total hip arthroplasty (THA) in this patient population. The primary purpose of this study was to evaluate the rate of revision surgery in elderly patients with acetabular fractures treated with ORIF or THA. The secondary purpose was to compare patient's self-reported functional outcomes...
February 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29368178/evaluation-of-accuracy-of-virtual-surgical-planning-for-patient-specific-pre-contoured-plate-in-acetabular-fracture-fixation
#9
Lalit Maini, Tarun Verma, Amit Sharma, Ankur Sharma, Abhishek Mishra, Sunil Jha
BACKGROUND: Acetabular fractures are amongst the most challenging fractures to treat because of complex anatomy. Open reduction and internal fixation remains the standard treatment for displaced acetabular fractures to achieve anatomical reduction as in any other intra-articular fracture. Patient-specific pre-contoured reconstruction plate template made by a pre-operative virtual surgical planning can be useful to respect patient's morphology, reduce surgical invasiveness and simplify the surgical procedure...
January 24, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29367913/radiographic-evaluation-of-19-patients-with-paprosky-3a-and-3b-submitted-to-acetabular-review-with-trabecular-metal-wedge
#10
Carlos Eduardo Benvindo Rosal da Fonseca Neto, Marcos Murilo Santana Lima, Bruno Tavares Rabello, Leonardo da Silva Sena, Luiz Carlos Zacaron Júnior, Maurício Tarrago Viana
Objective: This study is aimed at evaluating the fixation of trabecular metal wedges in patients who underwent revision of total hip arthroplasty with large acetabular bone defects. Methods: The radiographs of 19 patients (21 hips), who underwent revision of total hip arthroplasty using trabecular metal wedges from September 2010 to December 2014 were evaluated. This study included only cases of Paprosky 3A and 3B. Preoperative and postoperative images were analyzed...
January 2018: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29349502/a-biomechanical-comparison-of-different-fixation-techniques-for-fractures-of-the-acetabular-posterior-wall
#11
Xinbao Wu
PURPOSE: This study aimed to evaluate the biomechanical stability of different fixation techniques for fractures of the acetabular posterior wall. The hypothesis was that a reconstruction plate, combined with compression screw fixation and a plate placed lateral to the screws, would achieve a higher peak load to failure and stiffness and reduced gapping during cycle loading than other fixation techniques. METHODS: A total of 24 Sawbone pelvis models were created with simulated fractures at the posterior wall of the acetabulum...
January 18, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29325763/clinical-experience-with-three-dimensional-printing-techniques-in-orthopedic-trauma
#12
Ji Wan Kim, Yongkoo Lee, Joonho Seo, Jai Hyung Park, Yong Min Seo, Sung Soo Kim, Hyun Chul Shon
BACKGROUND: To report our experiences with the use of three-dimensional (3D) printing in the field of orthopedic trauma. METHODS: This retrospective study enrolled 24 patients from three university teaching hospitals in whom 3D printing technique was applied: 14 patients with acetabular fractures and 10 patients with clavicular shaft fractures. We summarized our experiences with 3D printed bone models. RESULTS: Three-dimensional printed acetabular models improved understanding of complex acetabular anatomy and fracture pattern to plan the optimal positioning of a reduction clamp and the trajectory of screws...
January 8, 2018: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29310917/mid-term-results-of-graft-augmentation-prosthesis-ii-cage-and-impacted-allograft-bone-in-revision-hip-arthroplasty
#13
Hazem A H Hosny, Ahmed El-Bakoury, Helmy Fekry, Jonathan Keenan
BACKGROUND: Several techniques have been described for management of severe acetabular bone defects during revision hip surgery including reconstructive cages. The purpose of this study is to analyze the survival and the mid-term clinical and radiological outcome using the Graft Augmentation Prosthesis (GAP II cage) (Stryker Orthopaedics, Mahwah, NJ) in addition to impaction grafting for acetabular defects in revision hip surgery. METHODS: This is a retrospective review of all patients who underwent acetabular revision hip replacement using GAP II cage and impaction bone grafting between 2009 and 2013 at our institution...
December 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29305458/hemiarthroplasty-proximal-femoral-endoprostheses-following-tumour-reconstruction-is-acetabular-replacement-necessary
#14
J D Stevenson, V S Kumar, G L Cribb, P Cool
AIMS: Dislocation rates are reportedly lower in patients requiring proximal femoral hemiarthroplasty than for patients undergoing hip arthroplasty for neoplasia. Without acetabular replacement, pain due to acetabular wear necessitating revision surgery has been described. We aimed to determine whether wear of the native acetabulum following hemiarthroplasty necessitates revision surgery with secondary replacement of the acetabulum after proximal femoral replacement (PFR) for tumour reconstruction...
January 2018: Bone & Joint Journal
https://www.readbyqxmd.com/read/29304960/editorial-commentary-arthroscopic-hip-ligamentum-teres-reconstruction-reality-or-mythology
#15
EDITORIAL
Ali S Bajwa, Richard N Villar
The ligamentum teres (LT) is perceived to contribute to hip stability and proprioception. LT incompetence can lead to pain and instability, which may play a role in chondral damage. Hip arthroscopy plays a role in diagnosing and treating LT tears. Reconstruction of the LT is feasible, but careful attention needs to be paid to tunnel positioning, graft material, graft length, and fixation methods. An anatomic femoral tunnel should exit at the fovea capitis on the femoral side, whereas the location for safe placement of the acetabular attachment is thought to be in the posteroinferior part of the cotyloid fossa...
January 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29273288/cementation-of-a-dual-mobility-construct-in-recurrently-dislocating-and-high-risk-patients-undergoing-revision-total-arthroplasty
#16
Brian P Chalmers, Cameron K Ledford, Michael J Taunton, Rafael J Sierra, David G Lewallen, Robert T Trousdale
BACKGROUND: Recurrent instability remains a challenge after revision total hip arthroplasty (THA). We report the outcomes of cementing a cementless dual mobility (DM) component into a stable acetabular shell for the treatment and/or prevention of instability in revision THA. METHODS: Eighteen patients (18 THAs) undergoing revision THA with a specific monoblock DM construct cemented into a new acetabular component or an existing well-fixed component from 2011 to 2014 were retrospectively reviewed...
December 6, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29260246/-allogeneic-bone-transplantation-in-hip-revision-surgery-indications-and-potential-for-reconstruction
#17
REVIEW
G A Ahmed, B Ishaque, M Rickert, C Fölsch
The increasing number of people having joint replacements will lead to increasing numbers of revision operations. The transplantation of allogeneic bones might reconstruct bone defects and improve long-term anchorage of the implant. A sufficient primary stability of the implanted construct is necessary to achieve osseous incorporation as well as tight contact between the implanted allogeneic and host bones. Transplantation of bone can contribute to downgrading acetabular defects and so avoid bigger reinforcement implants...
December 19, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/29250499/utility-of-radiographs-computed-tomography-and-three-dimensional-computed-tomography-pelvis-reconstruction-for-identification-of-acetabular-defects-in-residency-training
#18
Johannes F Plate, John S Shields, Maxwell K Langfitt, Michael P Bolognesi, Jason E Lang, Thorsten M Seyler
Purpose: The Paprosky classification system of acetabular defects is complex and its reliability has been questioned. The purpose of this study was to evaluate the effectiveness of different radiologic imaging modalities in classifying acetabular defects in revision total hip arthroplasty (THA) and their value of at different levels of training. Materials and Methods: Bone defects in 8 revision THAs were classified by 2 fellowship-trained adult reconstruction surgeons...
December 2017: Hip & Pelvis
https://www.readbyqxmd.com/read/29246717/comparative-analysis-of-the-reconstruction-of-individual-hip-anatomy-using-3-different-cementless-stem-designs-in-patients-with-primary-hip-osteoarthritis
#19
Moritz M Innmann, Katrin Spier, Marcus R Streit, Peter R Aldinger, Thomas Bruckner, Tobias Gotterbarm, Christian Merle
BACKGROUND: We questioned whether there was a radiographic difference in hip geometry reconstruction and implant fixation between 3 different cementless stem design concepts in patients with primary end-stage hip osteoarthritis. METHODS: We retrospectively evaluated the preoperative and postoperative radiographs by 2 independent and blinded reviewers in a series of 264 consecutive patients who had received either a straight double-tapered stem with 3 offset options (group A), a straight double-tapered stem with 2 shape options and modular necks (group B), and a bone-preserving curved tapered stem with 4 offset options (group C)...
November 21, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29234663/reconstruction-with-iliac-pedestal-cup-and-proximal-femur-tumor-prosthesis-after-wide-resection-of-chondrosarcoma-10-year-follow-up-results
#20
Diogo Lino Moura, Rúben Fonseca, João Freitas, António Figueiredo, José Casanova
Chondrosarcoma is a malignant cartilage-forming neoplasm. It is difficult to treat because of resistance to both chemotherapy and radiation, making wide local excision the only treatment. This report presents an active, 43 year-old man who was diagnosed with recurrent clear cell chondrosarcoma of the proximal left femur, previously reconstructed with a total hip prosthesis, extending to the weight-bearing dome of the acetabulum. Cancer staging study revealed no signs of tumor dissemination at distance. Given the excellent functional status of the patient, the authors performed a Enneking-Dunham type periacetabular pelvic resection and resected en bloc, with the total hip prosthesis including 22 cm of the femur and a portion of the hip abductor apparatus...
November 2017: Revista Brasileira de Ortopedia
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