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Lateral retinacular release

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https://www.readbyqxmd.com/read/28451613/medial-patellar-instability-treatment-and-outcomes
#1
Gilbert Moatshe, Tyler R Cram, Jorge Chahla, Mark E Cinque, Jonathan A Godin, Robert F LaPrade
BACKGROUND: Historically, a lateral retinacular release was one of the primary surgical interventions used to treat lateral patellar instability. However, disruption of the lateral structures during this procedure has been associated with medial instability of the patella. HYPOTHESIS: We hypothesize that good to excellent outcomes can be achieved at midterm follow-up after lateral patellotibial ligament reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
April 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28360504/lateral-facetectomy-decreased-patellofemoral-contact-pressure-in-total-knee-replacement-a-cadaveric-study
#2
Varah Yuenyongviwat, Khanin Iamthanaporn, Theerawit Hongnaparak
BACKGROUND: To study the patellofemoral contact pressure in patellar non-resurfacing total knee replacement after lateral facetectomy in different amounts of bone removal. METHODS: Eight knees from four fresh-frozen whole body cadavers were used for this study. Total knee replacement of all knees was performed by the same surgical technique. The contact pressure was measured and recorded when the knee performed passive motion from full extension to full flexion in native patella, lateral retinacular junction release, 10% lateral facetectomy, and 20% lateral facetectomy...
January 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28318932/patellar-instability-treated-with-distal-femoral-osteotomy
#3
Ishaan Swarup, Osama Elattar, S Robert Rozbruch
BACKGROUND: Patellar instability can cause significant disability in both pediatric and adult patients, and it is associated with several factors including genu valgum. In this study, we describe the role of a lateral opening wedge distal femoral osteotomy (DFO) combined with lateral retinacular release in addressing genu valgum with associated patellar instability. The rationale for this approach is to medialize the patellar tendon insertion and decrease the Q angle with DFO. METHODS: A consecutive series of patients were studied, and our outcomes of interest included improvements in radiographic measures and patient outcomes...
March 17, 2017: Knee
https://www.readbyqxmd.com/read/28236551/soft-tissue-releases-in-total-knee-arthroplasty-for-valgus-deformities
#4
Ke Xie, Steven T Lyons
BACKGROUND: Primary total knee arthroplasty (TKA) for valgus knee deformities can be challenging. Soft tissue releases are often necessary to achieve a well-balanced knee. We reviewed the frequency of soft tissue releases including lateral retinacular release (LRR) as it pertains to preoperative limb alignment. Postoperatively, we evaluated limb alignment, knee range of motion, and complications. METHODS: From 2010 to 2016, 214 primary TKAs with valgus deformity were performed by a single surgeon...
January 25, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28045869/why-do-patellofemoral-stabilization-procedures-fail-keys-to-success
#5
Nick Caplan, Islam Nassar, Bobby Anand, Deiary F Kader
In recent years, surgical interventions for patellofemoral joint instability have gained popularity, possibly revitalized by the recent advances in our understanding of patellofemoral joint instability and the introduction of a number of new surgical procedures. This rise in surgical intervention has brought about various complications. In this review article, we present the complications that are associated with 5 main surgical procedures to stabilize the patella-medial patellofemoral ligament reconstruction, tibial tubercle osteotomy, trochleoplasty, lateral release/lateral retinacular lengthening, and derotation osteotomies...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/27861210/symptomatic-venous-thromboembolism-after-adolescent-knee-arthroscopy
#6
Robert F Murphy, Benton Heyworth, Dennis Kramer, Manahil Naqvi, Patricia E Miller, Yi-Meng Yen, Mininder S Kocher, Benjamin J Shore
BACKGROUND: The frequency of knee arthroscopy procedures is increasing in pediatric and adolescent patients. In general, complications after these procedures in adolescents are uncommon. The purposes of this study are to report the incidence of venous thromboembolism (VTE) in adolescent patients after knee arthroscopy procedures, as well identify risk factors in this patient population. METHODS: Medical records were reviewed in all pediatric and adolescent patients (≤19 y) who underwent an arthroscopic knee procedure from 2010 to 2014 and were diagnosed with a symptomatic VTE in the postoperative period...
November 17, 2016: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/27703948/recurrent-patellar-instabilty-culminating-in-a-vertically-rotated-and-a-locked-patellar-dislocation-a-rare-entity
#7
Devgan A, Rohilla R, Jain A, Mehta H, Singh S
INTRODUCTION: Locked vertical patellar dislocations are rare and pose a therapeutic challenge. This case is more unusual, as the patient was a known case of recurrent patellar dislocation and presented with an atraumatic locked and vertically rotated patellar dislocation. This type of presentation has never been reported in literature to the best of our knowledge. CASE PRESENTATION: A 14-year-old healthy male child with previous history of recurrent lateral dislocation of patella presented to accident & emergency department with complaints of inability to walk or bear weight on his left lower limb after he spontaneously dislocated his patella while running on uneven ground...
April 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/27699725/arthroscopic-lateral-retinacular-release-and-modified-elmslie-trillat-operation-improve-severe-isolated-lateral-patello-femoral-osteoarthritis
#8
Renn-Chia Lin, Ko-Huang Lue, Ko-Hsiu Lu
To evaluate whether arthroscopic lateral retinacular release and the modified Elmslie-Trillat operation improve osteoarthritis (OA) progression and clinical outcomes in patients with severe isolated lateral patello-femoral OA. Nine women (11 knees) and one man (one knee) with isolated late-stage lateral patello-femoral OA underwent surgery. The severity of patello-femoral OA was recorded using the Merchant method, while the level of pain and anterior knee function were scored using the visual analogue scale (VAS) and Kujala knee scores, respectively...
October 3, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27631015/operative-management-of-patellar-instability-in-the-united-states-an-evaluation-of-national-practice-patterns-surgical-trends-and-complications
#9
Armin Arshi, Jeremiah R Cohen, Jeffrey C Wang, Sharon L Hame, David R McAllister, Kristofer J Jones
BACKGROUND: Treatment of patellofemoral instability has evolved as our understanding of the relevant pathoanatomy has improved. In light of these developments, current practice patterns and management trends have likely changed to reflect these advancements; however, this has not been evaluated in a formal study. PURPOSE: To determine nationwide patient demographics, surgical trends, and postoperative complications associated with the operative management of patellar instability surgery...
August 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27574606/lateral-patellofemoral-ligament-reconstruction-to-restore-functional-capacity-in-patients-previously-undergoing-lateral-retinacular-release
#10
Mitch Beckert, Dylan Crebs, Michael Nieto, Yubo Gao, John Albright
AIM: To study patient outcomes after surgical correction for iatrogenic patellar instability. METHODS: This retrospective study looked at 17 patients (19 knees) suffering from disabling medial patellar instability following lateral release surgery. All patients underwent lateral patellofemoral ligament (LPFL) reconstruction by a single surgeon. Assessments in all 19 cases included functional outcome scores, range of motion, and assessment for the presence of apprehension sign of the patella to determine if LPFL reconstruction surgery was successful at restoring patellofemoral stability...
August 16, 2016: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/27523259/the-effect-of-tourniquets-on-patellofemoral-joint-congruity-during-total-knee-arthroplasty
#11
Yoshio Matsui, Kosuke Shintani, Yoshiaki Okajima, Masanori Matsuura, Shigeru Nakagawa
BACKGROUND: Incongruity of the patellofemoral joint after total knee arthroplasty (TKA) causes anterior knee pain. Intraoperative congruity tests are necessary to avoid unnecessary lateral retinacular release, and the usage of tourniquets may influence these results. The purpose of this study was to examine the effect of tourniquets on patellofemoral joint congruity during TKA. MATERIALS AND METHODS: Two hundreds and seventeen knees were examined after TKA. Skyline radiographs at 60° and 90° flexion were taken immediately after wound closure before and after tourniquet deflation to compare changes in patellar tilt angle...
September 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27435989/coronal-patellar-osteotomy-of-the-external-facet-combined-with-the-release-of-the-lateral-retinaculum-improves-the-clinical-outcomes-of-isolated-lateral-release-in-lateral-knee-compartment-syndrome
#12
COMPARATIVE STUDY
A P Rosales-Varo, O Roda-Murillo, N Prados-Olleta, M A García-Espona
OBJECTIVE: To describe a novel coronal osteotomy of the external facet of the patella, and to evaluate if the outcomes of the treatment of lateral knee compartment syndrome (LKCS) with this osteotomy, combined with the release of the external lateral retinaculum, are better than the isolated lateral retinacular release. MATERIAL AND METHODS: A prospective study with a 2 year follow up that included 70 patients diagnosed with LKCS, distributed into 2 groups. The first group included 50 patients on whom the lateral retinacular release combined with osteotomy was performed, and a second group on whom an isolated retinacular release was performed...
September 2016: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/27307362/comparison-of-mini-midvastus-and-conventional-total-knee-arthroplasty-with-clinical-and-radiographic-evaluation-a-prospective-randomized-clinical-trial-with-5-year-follow-up
#13
RANDOMIZED CONTROLLED TRIAL
Hennie Verburg, Nina M C Mathijssen, Dieu-Donné Niesten, Jan A N Verhaar, Peter Pilot
BACKGROUND: The main objective of this prospective randomized study was to compare the clinical and radiographic outcomes of the mini-midvastus (MMV) approach with the conventional approach for total knee arthroplasty at the 5-year follow-up. METHODS: Ninety-seven patients (100 knees) with osteoarthritis were assigned to the MMV group or to a group receiving conventional total knee arthroplasty. Intraoperative and postoperative clinical data were collected. At 6 weeks and at 1, 2, and 5 years postoperatively, the Knee Injury and Osteoarthritis Outcome Score (KOOS), the Oxford Knee Score (OKS), the Knee Society Score (KSS), and the Short Form (SF)-12 were completed...
June 15, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27206069/results-of-lateral-retinacular-release-plus-circumpatellar-electrocautery-in-total-knee-arthroplasty-without-patellar-resurfacing
#14
Yong Wang, Jun-Ying Sun, Guo-Chun Zha
Anterior knee pain (AKP) is integral to the overall success of total knee arthroplasty (TKA) without patellar resurfacing. Numerous studies have evaluated various factors that may contribute to AKP, including patellofemoral design, surgical technique, characteristics of the patient, and degree of chondromalacia. This study aims to explore whether patients who received lateral retinacular release (LRR) plus circumpatellar electrocautery (CE) in TKA attain a low incidence of AKP and whether the LRR plus CE increases postoperative complications...
March 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27038478/the-effects-of-medial-synovial-plica-excision-with-and-without-lateral-retinacular-release-on-adolescents-with-anterior-knee-pain
#15
Dennis E Kramer, Leslie A Kalish, Matthew V Abola, Elizabeth M Kramer, Yi-Meng Yen, Mininder S Kocher, Lyle J Micheli
OBJECTIVES: To describe the functional outcomes in patients aged ≤18 years with anterior knee pain treated with medial plica excision with or without lateral release. METHODS: We identified 135 patients including 30 bilateral cases (165 knees) with a mean ± SD age of 15.1 ± 2.0 years. Patient and surgical information was recorded and a follow-up athletic questionnaire and an International Knee Documentation Committee (IKDC) Subjective Knee Evaluation form were sent out...
April 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27017345/proposal-of-a-therapeutic-protocol-for-selected-patients-with-patellofemoral-knee-osteoarthritis-arthroscopic-lateral-retinacular-release-followed-by-viscosupplementation
#16
M Fosco, E Dagher
BACKGROUND: Lateral retinacular release has been demonstrated to reduce articular patellofemoral pressures, while intra-articular injection of hyaluronic acid can improve the biological and rheological knee pathway. We evaluated whether treatment protocol consisting on combination of these two therapies can provide significant symptomatic improvement in patients with patellofemoral osteoarthritis (PFO) and patellar tilt. MATERIALS AND METHODS: We retrospectively analyzed the clinical and radiological data of 28 knees (25 patients with anterior knee pain) who underwent arthroscopic lateral retinacular release followed by viscosupplementation for isolated patellofemoral osteoarthritis without clinical or radiological signs of patellar instability...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/26952121/-basket-weave-technique-for-medial-patellofemoral-ligament-reconstruction-clinical-outcome-of-a-prospective-study
#17
Pranjal S Kodkani
BACKGROUND: Bone tunneling and implants with rigid fixations for medial patellofemoral ligament (MPFL) reconstruction are known to compromise results and are avoidable, especially in skeletally immature subjects. This study was to assess if these deficiencies were overcome with the technique devised by the author which avoids implants and bone tunnels. Results were assessed for complication rate and outcome. MATERIALS AND METHODS: Fifty six knees of recurrent lateral patellar dislocation were treated in the past 49 months by MPFL reconstruction...
January 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/26860094/imaging-assessment-of-patellar-instability-and-its-treatment-in-children-and-adolescents
#18
REVIEW
Arthur B Meyers, Tal Laor, Mark Sharafinski, Andrew M Zbojniewicz
Transient patellar dislocation is a common entity in children and adolescents, characterized by lateral dislocation of the patella, usually with spontaneous reduction. Many predisposing conditions have been described, including trochlear dysplasia, excessive lateral patellar tilt, patella alta and lateralization of the tibial tuberosity. Associated injuries are bone bruises of the patella and lateral femoral condyle, tears of the medial retinaculum that include the medial patellofemoral ligament (MPFL), tears of the vastus medialis obliquus muscle, injuries of articular cartilage, and intra-articular bodies...
May 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/26776100/kinematic-tka-using-navigation-surgical-technique-and-initial-results
#19
J R B Hutt, M-A LeBlanc, V Massé, M Lavigne, P-A Vendittoli
BACKGROUND: Kinematic alignment for total knee arthroplasty (TKA) may be one way of improving outcomes. Previous studies have either used patient-specific instrumentation, which adds cost, or standard instrumentation, which provides no intraoperative feedback on resection alignment. HYPOTHESIS: To determine if computer navigation could reproduce native patient anatomy and simplify ligament balance during TKA whilst giving satisfactory improvements in functional scores at early follow-up...
February 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/26566549/medial-patellar-subluxation-diagnosis-and-treatment
#20
Michael G Saper, David A Shneider
Medial patellar subluxation is a poorly recognized clinical condition characterized by chronic anterior knee pain that is exacerbated with knee flexion. Additional symptoms include instability, limited knee motion, and pain with squatting and stair climbing. Full characterization of the patient's knee pain requires an accurate history and physical examination. Diagnosis is typically confirmed during diagnostic arthroscopy. When nonsurgical management (eg, physical rehabilitation, patella-stabilizing bracing) fails, surgery (eg, medial retinacular release, lateral retinacular imbrication, newer techniques to repair or reconstruct the lateral retinaculum/lateral patellofemoral ligament) can lead to good results...
November 2015: American Journal of Orthopedics
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