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https://www.readbyqxmd.com/read/29244659/intra-articular-patellar-dislocation-a-technique-for-closed-reduction-a-case-report-and-review-of-the-literature
#1
Lachlan Wight, Dugal James
CASE: An 87-year-old man fell onto a flexed knee and sustained a closed intra-articular patellar dislocation. A closed reduction was performed under intravenous sedation by flexing the knee to 90°, applying an anterior drawer force to the tibia, and applying pressure to the inferior pole of the patella. The day after reduction, weight-bearing was begun in a hinged brace set at 0° to 90°. Full function was regained by 6 weeks postreduction. CONCLUSION: Intra-articular patellar dislocation may present as an unusual cause of a locked knee...
December 13, 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29225329/medial-patellofemoral-ligament-reconstruction-with-semi-patellar-tunnel-fixation-surgical-technique-and-mid-term-follow-up
#2
Jinghui Niu, Qi Qi, Kunpeng Fu, Guman Duan, Chang Liu, Fei Wang
BACKGROUND The present study aimed to describe a new safe and economical technique for medial patellofemoral ligament (MPFL) reconstruction with satisfactory clinical outcomes, and present the results of a four-year follow-up. MATERIAL AND METHODS Thirty-two patients with recurrent patella dislocation, who underwent MPFL reconstruction with two semi-patellar tunnels and hardware-free patellar fixation between 2011 and 2013, were included in the study. Patella stability was tested by an apprehension test preoperatively and at follow-up...
December 11, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29217442/posterior-approach-for-revascularization-in-blunt-popliteal-vessel-injury
#3
Vladimir Makaloski, Arno Stellmes, Doerte Wyss, Salome Weiss, Daniel Becker, Thomas R Wyss, Juerg Schmidli
BACKGROUND: Popliteal vessel injuries are associated with traumatic knee injury often requiring emergency revascularization. Medial and posterior approaches to the popliteal space have been proposed. This study evaluates the outcome of patients treated for traumatic popliteal vessel injuries via a posterior approach. METHODS: Consecutive patients with traumatic vascular injuries in the popliteal segments II and III undergoing surgical repair via a posterior approach between October 2008 and December 2016 were analyzed...
December 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29199060/total-joint-arthroplasty-in-patients-with-parkinson-s-disease-survivorship-outcomes-and-reasons-for-failure
#4
Alexander J Rondon, Timothy L Tan, Patrick K Schlitt, Max R Greenky, Jessica L Phillips, James J Purtill
BACKGROUND: Gait instability and muscle rigidity are known characteristics of Parkinson's disease (PD), putting PD patients at risk for complications following total joint arthroplasty (TJA). The outcomes of Parkinson's patients undergoing TJA are largely unknown. This study evaluated the outcomes of TJA in this population. METHODS: A single institution retrospective cohort of 123 TJAs (52 hips, 71 knees) from 2000 to 2016 was reviewed. An electronic chart query was performed using International Classification of Diseases, Ninth revision codes to identify this population...
November 16, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29189538/what-s-new-in-pediatric-sports-conditions-of-the-knee
#5
Aristides I Cruz, Connor G Richmond, Marc A Tompkins, Ann Heyer, Kevin G Shea, Jennifer J Beck
BACKGROUND: Sports injuries are common in pediatric and adolescent patients and the evaluation and treatment of these injuries continues to evolve. The purpose of this review is to provide a comprehensive appraisal of the literature, highlighting recent updates on sports-related knee injuries in the pediatric athlete. We specifically examined literature on tibial spine fractures, osteochondritis dissecans (OCD) of the knee, and patellar instability. Because of the volume of literature on the subject, pediatric, and adolescent anterior cruciate ligament injuries were not included in this review...
November 16, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29188335/poly-traumatic-multi-ligament-knee-injuries-is-the-knee-the-limiting-factor
#6
Jarret M Woodmass, Nick R Johnson, Rohith Mohan, Aaron J Krych, Bruce A Levy, Michael J Stuart
PURPOSE: Multi-ligament knee injuries (MLKI) from a high-velocity accident are rare but potentially devastating. This matched cohort analysis compares knee functional outcomes after multiple ligament reconstruction in poly-trauma patients to those that occurred in isolation. METHODS: Sixty-two patients with MLKI that occurred either as a component of polytrauma or had occurred in isolation were matched according to age, sex, and knee dislocation grade. Functional outcomes and knee physical examination were assessed at a 2-year follow-up...
November 29, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29185671/managing-dislocations-of-the-hip-knee-and-ankle-in-the-emergency-department
#7
Caylyne Arnold, Zane Fayos, David Bruner, Dylan Arnold
Dislocation of the major joints of the lower extremities--hip, knee, and ankle--can occur due to motor-vehicle crashes, falls, and sports injuries. Hip dislocations are the most common, and they require emergent management to prevent avascular necrosis of the femoral head. Knee dislocations are uncommon but potentially dangerous injuries that can result in amputation due to the potential for missed secondary injury, especially if they are reduced spontaneously. Isolated ankle dislocations are relatively rare, as most ankle dislocations involve an associated fracture...
December 2017: Emergency Medicine Practice
https://www.readbyqxmd.com/read/29182021/injuries-depicted-in-sport-related-films
#8
Robert P Olympia, Hannah Wakefield, Bryan Wakefield, Christopher J Weber
The perception that children and adolescents have of injuries may be influenced by their depiction in sport-related films. The objective of this study was to determine the depiction of injuries in a select number of sport-related films. Forty-four films were analyzed. Injury category, on-the-field management, and long-term management were determined for each injury. Major injuries were defined as injuries requiring prompt intervention and immediate discontinuation of sport participation. A total of 49 injuries were depicted, categorized as fracture (n = 11), contusion (n = 10), brain concussion (n = 8), muscle cramps (n = 5), laceration/abrasion (n = 4), ligamentous knee injury (n = 4), shoulder dislocation (n = 2), rotator cuff injury (n = 2), ankle sprain (n = 2), and unspecified injury (n = 1)...
November 1, 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/29170812/avulsion-fracture-of-an-ossified-pes-anserinus-tendon-post-lateral-patellar-dislocation
#9
Omar M Albtoush, Abtehag A Taib, Marius Horger, Fabian Springer
The pes anserinus is a common tendon comprising the tendinous insertions of the sartorius, gracilis, and semitendinosus muscles. It inserts at the anteromedial aspect of the tibia and plays a significant role in stabilization of the medial side of the knee joint. The current article presents a case with recurrent lateral patellar dislocations causing chronic stress along the medial knee stabilizers and consecutive enthesophyte formation at the insertion of the pes anserinus tendon that showed a transverse fracture upon a subsequent incident of traumatic lateral patellar dislocation...
November 23, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29167606/results-of-operative-4-in-1-patella-realignment-in-children-with-recurrent-patella-instability
#10
Francesc Malagelada, Ole Rahbek, Cyrus Sahirad, Manoj Ramachandran
Purpose: Recurrent patellar instability is a cause of knee dysfunction, limitation and pain for children. If nonoperative treatment fails to stabilise the patella, operative realignment and stabilisation have been advocated. Operative techniques in the paediatric population must preserve physeal growth while ensuring stability. We aimed to determine the outcome of children and adolescents who underwent a 4-in-1 patellar realignment (lateral release, medial reefing, Insall tube realignment and Roux-Goldthwaite patella ligament transfer)...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29162269/trans-articular-kirschner-wire-fixation-in-treating-complex-tibial-plateau-fractures-complicated-by-multiple-ligaments-injuries-a-case-report-and-literature-review
#11
Jianbin Wu, Yiyang Wang, Feiya Zhou, Lei Yang, Jun Tang
There is no guideline and consensus about when and how to treat accompanying multi-ligaments injuries, especially anterior and/or posterior cruciate ligaments, in tibial plateau fractures. We report one case of fracture and dislocation of tibial plateau, treated by open reduction and internal plates fixation, augmented by trans-articular Kirschner wire fixation to overcome instability and malrotation of the knee joints discovered intraoperatively. The Kirschner wire was removed about four weeks after the index operation, and the patient begun functional exercise from then on...
November 18, 2017: Injury
https://www.readbyqxmd.com/read/29159672/patellar-tracking-should-be-taken-into-account-when-measuring-radiographic-parameters-for-recurrent-patellar-instability
#12
Si Heng Sharon Tan, Mazen M Ibrahim, Zhaojie Joel Lee, Yen Kit Michael Chee, James H Hui
PURPOSE: To date, many radiographic parameters on patellar instability have their measurements taken statically, and have not been studied in various degrees of flexion according to the patellar tracking. There are also limited data regarding the use of these parameters in predicting recurrent patellar dislocation. The current study aims to review the radiographic parameters of the patellofemoral joint in different degrees of knee flexion and to correlate them with the presence of recurrent instability...
November 20, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29150745/alignment-in-the-transverse-plane-but-not-sagittal-or-coronal-plane-affects-the-risk-of-recurrent-patella-dislocation
#13
Shigeru Takagi, Takashi Sato, Satoshi Watanabe, Osamu Tanifuji, Tomoharu Mochizuki, Go Omori, Naoto Endo
PURPOSE: Abnormalities of lower extremity alignment (LEA) in recurrent patella dislocation (RPD) have been studied mostly by two-dimensional (2D) procedures leaving three-dimensional (3D) factors unknown. This study aimed to three-dimensionally examine risk factors for RPD in lower extremity alignment under the weight-bearing conditions. METHODS: The alignment of 21 limbs in 15 RPD subjects was compared to the alignment of 24 limbs of 12 healthy young control subjects by an our previously reported 2D-3D image-matching technique...
November 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29130878/a-novel-technique-utilizing-a-vastus-lateralis-anchor-in-treatment-of-chronic-patellar-dislocation-after-total-knee-arthroplasty
#14
Allison Mayfield, Vamsi Singaraju, Afshin A Anoushiravani, Zain Sayeed, Jamal K Saleh, Khaled J Saleh
Extensor mechanism complications involving the patella frequently result in total knee arthroplasty (TKA) failure. Postoperative patellar dislocation may be caused by soft tissue imbalance, improper sizing, and position of the prosthesis. This report describes a case of revision TKA requiring several rounds of soft tissue releases in an effort to treat the patient's chronic patellar dislocation. In the process, a novel surgical approach was developed for the surgical management of refractory chronic patellar dislocations...
October 2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/29123919/t2-mapping-and-post-contrast-t1-dgemric-of-the-patellar-cartilage-12-year-follow-up-after-patellar-stabilizing-surgery-in-childhood
#15
Eva Bengtsson Moström, Eveliina Lammentausta, Thröstur Finnbogason, Lars Weidenhielm, Per-Mats Janarv, Carl Johan Tiderius
Background: Cartilage degeneration has been reported after recurrent patellar dislocation. However, effects of surgical stabilization in childhood have not yet been described. Purpose: To examine the cartilage quality in very young adults operated with a patellar stabilizing procedure due to recurrent patellar dislocation in childhood, and evaluate if cartilage quality correlates with clinical parameters and patient-reported outcomes. Material and Methods: Seventeen patients were investigated ≥ 5 years (mean = 11...
October 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/29114630/unicompartmental-knee-arthroplasty-modes-of-failure-and-conversion-to-total-knee-arthroplasty
#16
REVIEW
Michele Vasso, Katia Corona, Rocco D'Apolito, Giuseppe Mazzitelli, Alfredo Schiavone Panni
Despite the excellent success rates of the modern unicompartmental knee arthroplasty (UKA), results of knee replacement registries still shows a relatively high revision and failure rate for UKA, especially when compared with traditional total knee arthroplasty (TKA). Bearing dislocation continues to be advocated as the predominant mechanism of failure in mobile UKA, whereas polyethylene wear and aseptic loosening remains the main cause of failure of fixed UKA. Degeneration of the unreplaced compartments has been reported in both mobile and fixed designs...
March 2017: Joints
https://www.readbyqxmd.com/read/29099891/paraskiing-crash-and-knee-dislocation-with-multiligament-reconstruction-and-iliotibial-band-repair
#17
Chase S Dean, Olivia Fernandes, Mark E Cinque, Jorge Chahla, Robert F LaPrade
We describe the diagnosis, treatment, rehabilitation, and complications of a 27-year-old male paraskiier who sustained a closed high-velocity knee dislocation after colliding with a tree at a speed of 45 mph and falling 40 feet to the ground. Extensive surgery to repair and reconstruct the knee included open lateral capsular repair, open anatomical posterolateral corner reconstruction with split Achilles tendon allograft, open iliotibial band reconstruction with Achilles tendon allograft, arthroscopic anterior cruciate ligament reconstruction with bone-patellar tendon-bone autograft, and double-bundle posterior cruciate ligament reconstruction with Achilles tendon allograft for the anterolateral bundle and tibialis anterior tendon allograft for the posteromedial bundle...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29080048/total-knee-arthroplasty-in-patients-with-prior-ipsilateral-hip-arthrodesis
#18
Borja de la Hera, Rafael Rubio-Quevedo, Angeles Gomez-Garcia, Alejandro Gomez-Rice
Only a few articles based on the management of symptomatic knee osteoarthritis in patients with prior ipsilateral hip arthrodesis have been reported, and there are no clear criteria for the best treatment option [to carry out a total knee arthroplasty (TKA)-or to take down the hip fusion and conversion to a total hip arthroplasty-THA, and after that to carry out the TKA]. We report two cases, a 72-year-old male who underwent a left hip arthrodesis at 28 because of a trauma and a 51-year-old woman who underwent a left hip arthrodesis at 9 years because of a congenital dislocation...
October 27, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29071377/-plate-osteosynthesis-of-patellar-fractures
#19
REVIEW
E C Müller, K-H Frosch
OBJECTIVE: Anatomic reconstruction of the retropatellar articular surface and repair of the extensor mechanism of the knee joint. The osteosynthesis should allow immediate mobilization as part of an early functional postoperative rehabilitation protocol. INDICATIONS: Displaced fractures of the patella, especially multifragment and comminuted fractures with a retropatellar incongruity or dislocation of >2 mm. CONTRAINDICATIONS: Critical local soft tissue because of the risk of postoperative infection...
October 25, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29066111/internet-promotion-of-direct-anterior-approach-total-hip-arthroplasty-by-members-of-the-american-association-of-hip-and-knee-surgeons
#20
Ademola I Shofoluwe, Neal B Naveen, Avinash Inabathula, Mary Ziemba-Davis, R Michael Meneghini, John J Callaghan, Lucian C Warth
BACKGROUND: The direct anterior approach (DAA) in total hip arthroplasty is of significant interest to both patients and surgeons, largely due to intense marketing. This study addressed the question, "What is the level of promotion of DAA total hip arthroplasty on the internet by American Association of Hip and Knee Surgeons (AAHKS) members?" METHODS: An internet search was performed to identify surgeon-specific websites for each member of the AAHKS using the members' full name and a previously published set of criteria...
August 23, 2017: Journal of Arthroplasty
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