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Medial patellofemoral ligament

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https://www.readbyqxmd.com/read/29344696/reconstruction-of-the-medial-patellotibial-ligament-results-in-favorable-clinical-outcomes-a-systematic-review
#1
Charles A Baumann, Eli L Pratte, Seth L Sherman, Elizabeth A Arendt, Betina B Hinckel
PURPOSE: The medial patellotibial ligament (MPTL), the medial patellofemoral ligament (MPFL), and the medial patellomeniscal ligament (MPML) support the stability of the patellofemoral joint. The purpose of this systematic review was to report the surgical techniques and clinical outcomes of the repair or reconstruction of the MPTL in isolation or concomitant with the MPFL and/or other procedures. METHODS: A systematic review of the literature was conducted. Inclusion criteria were articles in the English language that reported clinical outcomes of the reconstruction of the MPTL in isolation or in combination with the MPFL and/or other procedures...
January 17, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29339848/habitual-patellar-dislocation-in-children-results-of-surgical-treatment-by-modified-four-in-one-technique
#2
Ravi Mittal, Avtar Singh Balawat, Vikrant Manhas, Amit Roy, Navin Kumar Singh
Background: Habitual patellar dislocation is a rare condition affecting children. The growth plates are open in children and any surgical intervention should take that in to consideration. We are describing a modified four in one technique for habitual patellar dislocation, which is a soft tissue procedure without the use of any implant. Method: In this study we included 6 children (4 females and 2 males) with open growth plates, which were diagnosed with habitual patellar dislocation...
November 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29322904/modular-bicompartmental-knee-arthroplasty-indications-technique-prosthetic-design-and-results
#3
R Kanna
The shifting demographics of patients with localized knee arthritis, including younger, more active patients, is a chief motivation for mounting interest in tissue preserving surgical substitutes for total knee arthroplasty (TKA). Unlinked, modular bi-compartmental knee arthroplasty (MBKA) is an emerging knee-resurfacing approach that provides a conservative alternative to TKA. Arthritis involving both patellofemoral and either medial or lateral tibiofemoral compartments, with no significant deformity or bone deficiency, preserved motion, and intact cruciate ligaments, can be effectively managed with MBKA...
March 2017: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/29322270/recent-developments-in-evaluation-and-treatment-of-lateral-patellar-instability
#4
REVIEW
Alexander Zimmerer, Christian Sobau, Peter Balcarek
Recent years have been characterized by an ongoing increase in knowledge about the different conditions associated with lateral patellar instability. This increase in knowledge provides differentiated approaches to the various pathologies of the patellofemoral joint. Though current guidelines consider medial patellofemoral ligament (MPFL) reconstruction the basic treatment for the unstable patella, medial soft tissue-stabilizing procedures should not be interpreted as stand-alone procedures in every case. The influence of different anatomical factors leading to patellar instability, as well as their impact on clinical outcome measures, is becoming increasingly apparent and deserves further attention...
January 10, 2018: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/29312853/deepening-trochleoplasty-combined-with-balanced-medial-patellofemoral-ligament-reconstruction-for-an-adequate-graft-tensioning
#5
Lars V von Engelhardt, Pia Weskamp, Matthias Lahner, Gunter Spahn, Joerg Jerosch
AIM: To evaluate our modified deepening trochleoplasty combined with a balanced medial patellofemoral ligament (MPFL) reconstruction for soft tissue alignement. METHODS: Thirty-three knees with with recurrent patellar dislocations and a trochlear dysplasia in 30 patients (m/f = 12/21, mean age 24 ± 9 years) underwent a combination of a modified deepening trochleoplasty and a balanced MPFL reconstruction for a medial soft tissue alignement. After a mean follow-up period of 29 ± 23 mo, patients' return to sports, possible complications as well as the clinical outcomes using the Kujala, International Knee Documentation Committee (IKDC) and Lysholm scoring were evaluated...
December 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29305291/medial-patellofemoral-ligament-reconstruction-impact-of-knee-flexion-angle-during-graft-fixation-on-dynamic-patellofemoral-contact-pressure-a-biomechanical-study
#6
Olaf Lorbach, Nikolaus Zumbansen, Matthias Kieb, Turgay Efe, Antonius Pizanis, Dieter Kohn, Alexander Haupert
PURPOSE: Objective evaluation of the optimal graft tension angle to fully restore patellofemoral contact pressure in reconstruction of the medial patellofemoral ligament (MPFL) in comparison to the native knee. METHODS: Twelve cadaveric knee specimens were fixed in a custom-made fixation device. A sensitive pressure film (Tekscan) was fixed in the patellofemoral joint, and patellofemoral contact pressure was assessed during a dynamic flexion movement from 0° to 90°...
January 2, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29302781/a-new-minimally-invasive-surgical-technique-for-medial-retinaculum-repair-following-traumatic-patellar-dislocation
#7
Haim Shtarker, Michael Assaf, Marshall N Deltoff
A new surgical method is introduced offering a less invasive approach to reattach the medial retinaculum following acute patellar dislocation. This retrospective analysis comprised 12 cases of medial retinacular repair in 10 patients. The surgical technique achieved reinforced reattachment of the torn region of the medial retinaculum for improved patellar support and stabilization. During follow-up, no recurrent patellar dislocations occurred, except where one patient reported a subjective feeling of patellar dislocation...
January 4, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29300223/osteotomies-in-patello-femoral-instabilities
#8
David Dejour, Bertrand Le Coultre
Patellar instability is defined by clinical and radiologic criteria. The surgical treatment is aimed at restoring the congruence of the patellofemoral articulation and correcting extensor mechanism malalignment, to prevent recurrence of dislocation. The standard soft-tissue procedures are lateral release and vastus medialis advancement and medial patello femoral ligament plasty. Bony procedures are frequently performed in addition to soft-tissue surgery, to realign the extensor mechanism by means of tibial tubercle medialization, or to correct the patellar index in patella alta...
March 2018: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/29299655/medial-patellofemoral-ligament-reconstruction-in-children-do-osseous-abnormalities-matter
#9
Sebastien Pesenti, Matthieu Ollivier, Jean-Charles Escudier, Mathieu Cermolacce, Alexandre Baud, Franck Launay, Jean-Luc Jouve, Elie Choufani
PURPOSE: Management of post-traumatic patellar instability in children with osseous abnormalities is challenging because of the presence of an open physis. The aim of our study was to compare the rate of recurrence after isolated reconstruction of the medial patellofemoral ligament (MPFL) in children with or without osseous abnormalities. METHODS: The medical records of 25 children (27 knees) with recurrent patellar dislocation were reviewed. Each child underwent an isolated reconstruction of the MPFL using a hamstring graft...
January 4, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29298083/clinical-outcomes-after-isolated-medial-patellofemoral-ligament-reconstruction-for-patellar-instability-among-patients-with-trochlear-dysplasia
#10
Joseph N Liu, Jacqueline M Brady, Irene L Kalbian, Sabrina M Strickland, Claire Berdelle Ryan, Joseph T Nguyen, Beth E Shubin Stein
BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction has become one of the most common and widely used procedures to regain stability among patients with recurrent lateral patellar dislocation. While recent studies demonstrated low recurrence rates, improved patient-reported outcome measures, and a high rate of return to sports, limited literature explored its effectiveness as an isolated intervention in the context of trochlear dysplasia. PURPOSE: To determine the efficacy of isolated MPFL reconstruction in treating patellar instability in the setting of trochlear dysplasia...
January 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29244532/risk-factors-and-predictors-of-significant-chondral-surface-change-from-primary-to-revision-anterior-cruciate-ligament-reconstruction-a-moon-and-mars-cohort-study
#11
Robert A Magnussen, James R Borchers, Angela D Pedroza, Laura J Huston, Amanda K Haas, Kurt P Spindler, Rick W Wright, Christopher C Kaeding, Christina R Allen, Allen F Anderson, Daniel E Cooper, Thomas M DeBerardino, Warren R Dunn, Brett A Lantz, Barton Mann, Michael J Stuart, John P Albright, Annunziato Amendola, Jack T Andrish, Christopher C Annunziata, Robert A Arciero, Bernard R Bach, Champ L Baker, Arthur R Bartolozzi, Keith M Baumgarten, Jeffery R Bechler, Jeffrey H Berg, Geoffrey A Bernas, Stephen F Brockmeier, Robert H Brophy, Charles A Bush-Joseph, J Brad Butler, John D Campbell, James L Carey, James E Carpenter, Brian J Cole, Jonathan M Cooper, Charles L Cox, R Alexander Creighton, Diane L Dahm, Tal S David, David C Flanigan, Robert W Frederick, Theodore J Ganley, Elizabeth A Garofoli, Charles J Gatt, Steven R Gecha, James Robert Giffin, Sharon L Hame, Jo A Hannafin, Christopher D Harner, Norman Lindsay Harris, Keith S Hechtman, Elliott B Hershman, Rudolf G Hoellrich, Timothy M Hosea, David C Johnson, Timothy S Johnson, Morgan H Jones, Ganesh V Kamath, Thomas E Klootwyk, Bruce A Levy, C Benjamin Ma, G Peter Maiers, Robert G Marx, Matthew J Matava, Gregory M Mathien, David R McAllister, Eric C McCarty, Robert G McCormack, Bruce S Miller, Carl W Nissen, Daniel F O'Neill, Brett D Owens, Richard D Parker, Mark L Purnell, Arun J Ramappa, Michael A Rauh, Arthur C Rettig, Jon K Sekiya, Kevin G Shea, Orrin H Sherman, James R Slauterbeck, Matthew V Smith, Jeffrey T Spang, Steven J Svoboda, Timothy N Taft, Joachim J Tenuta, Edwin M Tingstad, Armando F Vidal, Darius G Viskontas, Richard A White, James S Williams, Michelle L Wolcott, Brian R Wolf, James J York
BACKGROUND: Articular cartilage health is an important issue following anterior cruciate ligament (ACL) injury and primary ACL reconstruction. Factors present at the time of primary ACL reconstruction may influence the subsequent progression of articular cartilage damage. HYPOTHESIS: Larger meniscus resection at primary ACL reconstruction, increased patient age, and increased body mass index (BMI) are associated with increased odds of worsened articular cartilage damage at the time of revision ACL reconstruction...
December 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29239536/-patellar-instability-diagnosis-and-treatment
#12
Trieu Hoai Nam Ngo, Robin Martin
The aim of this paper is to present recent advances in surgical management of patellar instability. Several anatomical factors were reported to promote instability. We propose to classify them in two groups. Extra articular factors are valgus and torsion deformity. Articular factors include trochlea and patella dysplasia, tibial tubercle lateralization and medial patellofemoral ligament (MPFL) insufficiency. Acute patellar dislocations are treated conservatively, with exception for osteochondral and MPFL avulsion fractures that require acute reinsertion...
December 13, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29238105/relationship-between-patellar-mobility-and-patellofemoral-joint-cartilage-degeneration-after-anterior-cruciate-ligament-reconstruction
#13
Susumu Ota, Kazutoshi Kurokouchi, Shigeo Takahashi, Masaki Yoda, Ryuichiro Yamamoto, Tadahiro Sakai
Patellofemoral cartilage degeneration is a potential complication of anterior cruciate ligament reconstruction (ACLR) surgery. Hypomobility of the patella in the coronal plane is often observed after ACLR. Few studies, however, have examined the relationship between cartilage degeneration in the patellofemoral joint and mobility after ACLR. The present study investigated 1) the coronal mobility of the patella after ACLR, 2) the relationship between patellar mobility and cartilage degeneration of the patellofemoral joint, and 3) the relationship between patellar mobility and knee joint function after ACLR...
November 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/29230426/lateral-patellofemoral-ligament-an-anatomic-study
#14
Kalpit N Shah, Steven F DeFroda, James Kristopher Ware, Sarath C Koruprolu, Brett D Owens
Background: Medial instability of the patellofemoral joint is a rare but known phenomenon that may result from an incompetent lateral patellofemoral ligament (LPFL). Surgical reconstruction of the LPFL has been described. However, anatomic details of the ligament have not been the subject of scrutiny. Purpose: To describe the anatomic origin and insertion of the LPFL. Study Design: Descriptive laboratory study. Methods: Ten fresh-frozen, unpaired human cadaveric knees (mean age, 57 years) were dissected to identify the LPFL...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29225329/medial-patellofemoral-ligament-reconstruction-with-semi-patellar-tunnel-fixation-surgical-technique-and-mid-term-follow-up
#15
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/29209793/degenerative-changes-after-posterior-cruciate-ligament-reconstruction-are-irrespective-of-posterior-knee-stability-mri-based-long-term-results
#16
Clemens Gwinner, Andreas Weiler, Timm Denecke, Julian M M Rogasch, Heide Boeth, Tobias M Jung
INTRODUCTION: Posterior cruciate ligament reconstruction (PCLR) is advocated to prevent an early onset of osteoarthritis. We hypothesized that posterior instability after PCLR correlates with degenerative changes. MATERIALS AND METHODS: MRIs of 42 (12 female/30 male; 39 ± 9 years) patients were enrolled with a minimum 5-year follow-up (FFU) after PCLR. In addition, 25 contralateral and 15 follow-up MRIs (12 months after baseline) were performed. Degenerative changes were graded using WORMS...
December 6, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29204503/bicompartmental-knee-arthroplasty-vs-total-knee-arthroplasty-for-the-treatment-of-medial-compartment-and-patellofemoral-osteoarthritis
#17
Sahil Kooner, Herman Johal, Marcia Clark
Background: Interest in bicompartmental knee arthroplasty (BKA) for the treatment of medial patellofemoral osteoarthritis (MPFOA) has grown in recent years because BKA offers a bone and ligament-preserving alternative to total knee arthroplasty (TKA). BKA only resurfaces the diseased compartments, while preserving proprioception and native knee kinematics. Therefore, the objective of this study is to assess knee function, perioperative morbidity, and implant survivability in patients undergoing BKA vs TKA for MPFOA...
December 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/29201929/evaluation-of-the-sch%C3%A3-ttle-technique-in-the-pediatric-knee
#18
Kellen L Huston, Ugochi C Okoroafor, Scott G Kaar, Christa L Wentt, Paul Saluan, Lutul D Farrow
Background: The Schöttle point is commonly used for anatomic femoral tunnel placement during medial patellofemoral ligament (MPFL) reconstruction. This technique has not been previously validated in the skeletally immature patient, in whom femoral tunnel placement may put the distal femoral physis at risk of iatrogenic injury. Hypothesis: Interobserver reliability for femoral tunnel placement will be higher in adult knees compared with pediatric knees. Study Design: Cross-sectional study (diagnosis); Level of evidence, 3...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29201927/radiographic-location-does-not-ensure-a-precise-anatomic-location-of-the-femoral-fixation-site-in-medial-patellofemoral-ligament-reconstruction
#19
Vicente Sanchis-Alfonso, Cristina Ramírez-Fuentes, Erik Montesinos-Berry, Isabel Elía, Luis Martí-Bonmatí
Background: A frequently used method to determine the anatomic femoral fixation point in the operating room during medial patellofemoral ligament (MPFL) reconstruction is the radiographic method. However, the ability of this radiological method to establish an anatomic femoral attachment point might not be as accurate as expected. Purpose: (1) To evaluate the accuracy of the radiological method to locate the anatomic femoral fixation point in MPFL reconstruction surgery and (2) to determine the factors influencing the predictability of this method to obtain this objective...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29138916/lateral-retinaculum-plasty-instead-of-lateral-retinacular-release-with-concomitant-medial-patellofemoral-ligament-reconstruction-can-achieve-better-results-for-patellar-dislocation
#20
Chang Liu, Guman Duan, Yingzhen Niu, Pengkai Cao, Kunpeng Fu, Jinghui Niu, Fei Wang
PURPOSE: To elucidate the outcomes of lateral retinaculum plasty versus lateral retinacular release with concomitant medial patellofemoral ligament (MPFL) reconstruction. METHODS: In a prospective study, 59 patients treated at our institution from 2012 to 2014 were included. The 59 patients were randomly divided into two groups. Group I included 27 patients who underwent lateral retinacular release and MPFL reconstruction. Group II included 32 patients who underwent lateral retinaculum plasty and MPFL reconstruction...
November 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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