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JOURNAL ARTICLE
Jakub Vodnarek, Eva Schneider, Barbara Bockstahler, Eva Schnabl-Feichter
BACKGROUND: Various trochleoplasty techniques, including trochlear wedge recession (TWR) and trochlear block recession (TBR), are used to treat dogs with medial patellar luxation (MPL). However, the objective outcomes of these surgical procedures are underreported. METHODS: Medical records were obtained for dogs weighing less than 10 kg that underwent either TWR or TBR and tibial tuberosity transposition to address grade I-III MPL. Long-term (at least 1 year after the last procedure) follow-up included orthopaedic and radiographic examinations, such as osteoarthritis score (OAS), ground reaction force (GRF) analysis and canine brief pain inventory (CBPI)...
April 6, 2024: Veterinary Record
#2
JOURNAL ARTICLE
R Timothy Kreulen, Gregory Anderson, Sercan Yalcin, Joseph M Hart, Kaitlyn Shank, Matthew S Fury, John J Elias, Miho J Tanaka, Lutul D Farrow, David R Diduch, Andrew J Cosgarea
BACKGROUND: Recent studies have reported conflicting results as to whether isolated medial patellofemoral ligament reconstruction (MPFLr) leads to decreased patellar height. PURPOSE: To investigate if patellar stabilization surgery not intended to address patella alta influences patellar height. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: A multicenter retrospective chart review was conducted, and patients who underwent MPFLr, medializing tibial tuberosity osteotomy (TTO), and/or trochleoplasty between 2016 and 2020 were included...
March 2024: Orthopaedic Journal of Sports Medicine
#3
JOURNAL ARTICLE
Carlo Eikani, Derrick M Knapik, Amar S Vadhera, Harsh Singh, Evan Polce, Safa Gursoy, Adam B Yanke, Jorge Chahla
PURPOSE: Trochleoplasty has become increasingly utilised to address patellar instability in the setting of severe trochlear dysplasia. There remains a paucity of literature on the outcomes of 'thick'- versus 'thin'-osteochondral flap trochleoplasty. The purpose of this study is to compare clinical and radiographic outcomes between patients with patellar instability with symptomatic trochlear dysplasia treated using a 'thick' versus 'thin' osteochondral flap trochleoplasty. METHODS: A systematic review and meta-analysis were conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines using a PRISMA checklist...
March 17, 2024: Knee Surgery, Sports Traumatology, Arthroscopy
#4
JOURNAL ARTICLE
David H Dejour, Tomas Pineda, Amedeo Guarino, Michael J Dan, Edoardo Giovannetti de Sanctis
Trochlear dysplasia is the main anatomical risk factor for objective patellar instability. Surgical correction of trochlea dysplasia via a trochleoplasty has been described with good clinical results reported. Concerns remain for who have abnormal patellofemoral tracking post a trochleoplasty due to incongruence between the two articulating surfaces. We described a medial closing wedge patellar osteotomy to improve congruency of the patellofemoral joint post-trochleoplasty.
February 2024: Arthroscopy Techniques
#5
REVIEW
Ajay C Kanakamedala, Bradley A Lezak, Michael J Alaia, Laith M Jazrawi
Recurrent patellar instability can significantly impact patients' quality of life and function. A large amount of research on patellar instability has been conducted in the past two decades, and a number of traditionally held principles of treatment have been challenged. This review addresses three current concepts and controversies in the treatment of patellar instability, specifically what factors lead to an increased tibial tubercle-trochlear groove distance and how to address them, when to add a tibial tubercle osteotomy to a medial patellofemoral ligament (MPFL) reconstruction, and which medial patellar stabilizers should be reconstructed...
March 2024: Bulletin of the Hospital for Joint Diseases
#6
JOURNAL ARTICLE
Mohammad Ashik Bin Zainuddin, Neeraj Mishra, Kevin Boon Leong Lim, Hamid Rahmatullah Bin Abd Razak, Phillip Lobenhoffer, Chloe Xiaoyun Chan
PURPOSE: To report short-term results and clinical outcomes of arthroscopic deepening trochleoplasty combined with medial patellofemoral ligament (MPFL) reconstruction utilising standard arthroscopic instruments in patients of recurrent patellar dislocation with trochlear dysplasia. METHODS: This is a case series of 13 patients between the ages of 14 to 20 years who presented with recurrent patellar dislocation and severe trochlear dysplasia (Dejour grade D). They were treated surgically using an arthroscopic technique from February 2017 to January 2019, and were followed for 18-months...
February 28, 2024: Journal of ISAKOS
#7
JOURNAL ARTICLE
Si Heng Sharon Tan, Qinxiang Shant Sin, Luke Yi Hao Tan, Andrew Kean Seng Lim, James Hoipo Hui
PURPOSE: There are limited studies that have reported the middle- to long-term outcomes of combined procedures consisting of more than two procedures for patellofemoral instability. The current study aims to investigate and report the middle- to long-term outcomes of a combination procedure of tibial tubercle transfer, medial patellofemoral ligament reconstruction, trochleoplasty and lateral release for patellofemoral instability in patients aged 18 years and below. METHODS: In the cohort study, all patients aged 18 years old or younger who underwent a combination procedure of tibial tubercle transfer, medial patellofemoral ligament reconstruction, trochleoplasty and lateral release for recurrent patellofemoral instability were included...
January 27, 2024: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
#8
JOURNAL ARTICLE
Bradley M Kruckeberg, Ryan R Wilbur, Bryant M Song, Abhinav Lamba, Christopher L Camp, Daniel B F Saris, Aaron J Krych, Michael J Stuart
BACKGROUND: The medial patellofemoral ligament (MPFL) is the primary soft tissue restraint to lateral patellar translation and is often disrupted by lateral patellar dislocation. Surgical management for recurrent patellar instability focuses on restoring the MPFL function with repair or reconstruction techniques. Recent studies have favored reconstruction over repair; however, long-term comparative studies are limited. PURPOSE: To compare long-term clinical outcomes, complications, and recurrence rates of isolated MPFL reconstruction and MPFL repair for recurrent lateral patellar instability...
January 2024: Orthopaedic Journal of Sports Medicine
#9
JOURNAL ARTICLE
Itaru Mizutani, Reo Nishi, Masahiro Murakami
Bidirectional patellar luxation (BPL) is a relatively rare form of patellar luxation, with limited information reported regarding breed predisposition and etiology. The purpose of this study was to describe the patient characteristics and radiographic measures of proximodistal patellar position associated with BPL in dogs in Japan, compared with dogs with medial patellar luxation (MPL). A retrospective medical record search of surgically corrected MPL and BPL dogs was performed, and breed, age, sex, body weight, and presence of the patella alta in the extended-stifle position were recorded...
December 5, 2023: Veterinary Sciences
#10
JOURNAL ARTICLE
Alefe L C Carrera, Bruno W Minto, Eloy H P Curuci, Carla G Paula, Julia B Jassniker, Olicies Cunha
OBJECTIVE: The aim of this study was to analyse a series of five cases of early surgical treatment in juvenile canine patients with high-grade medial patellar luxation. STUDY DESIGN: Canine patients, with immature skeleton, affected by grade III or IV medial patellar luxation and treated by multimodal surgical techniques were selected. RESULTS: Five dogs of different breeds, mean age 7.2 ± 3.0 months, met the inclusion criteria...
December 19, 2023: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
#11
JOURNAL ARTICLE
Eoghan T Hurley, Seth L Sherman, Jorge Chahla, Safa Gursoy, Michael J Alaia, Miho J Tanaka, J L Pace, Laith M Jazrawi, Andrew J Hughes, Elizabeth A Arendt, Olufemi R Ayeni, Ashley J Bassett, Kevin F Bonner, Christopher L Camp, Kirk A Campbell, Cordelia W Carter, Michael G Ciccotti, Andrew J Cosgarea, David Dejour, Cory M Edgar, Brandon J Erickson, João Espregueira-Mendes, Jack Farr, Lutul D Farrow, Rachel M Frank, Kevin B Freedman, John P Fulkerson, Alan Getgood, Andreas H Gomoll, John A Grant, F W Gwathmey, Fares S Haddad, Laurie A Hiemstra, Betina B Hinckel, Ian Savage-Elliott, Jason L Koh, Aaron J Krych, Robert F LaPrade, Zachary I Li, Catherine A Logan, Guillem Gonzalez-Lomas, Brian J Mannino, Martin Lind, Bogdan A Matache, Elizabeth Matzkin, Bert Mandelbaum, Thomas F McCarthy, Mary Mulcahey, Volker Musahl, Philippe Neyret, Clayton W Nuelle, Sam Oussedik, Peter Verdonk, Scott A Rodeo, Fiachra E Rowan, Matthew J Salzler, Patrick C Schottel, Fintan J Shannon, Andrew J Sheean, Sabrina M Strickland, Brian R Waterman, Jocelyn R Wittstein, Michael Zacchilli, Stefano Zaffagnini
AIMS: The aim of this study was to establish consensus statements on medial patellofemoral ligament (MPFL) reconstruction, anteromedialization tibial tubercle osteotomy, trochleoplasty, and rehabilitation and return to sporting activity in patients with patellar instability, using the modified Delphi process. METHODS: This was the second part of a study dealing with these aspects of management in these patients. As in part I, a total of 60 surgeons from 11 countries contributed to the development of consensus statements based on their expertise in this area...
December 1, 2023: Bone & Joint Journal
#12
REVIEW
Essy Dwi Damayanthi, Tomas Pineda, Andri Maruli Tua Lubis, Ghuna Arioharjo Utoyo, Ilma Fi Ahsani Nur Alaina
BACKGROUND: Trochlear dysplasia is a condition in which the femoral trochlea has an abnormal shape and function. Trochleoplasty aims to change the shape of the trochlea in order to stabilize an unstable patella. This study compared clinical outcomes and recurrent instability after surgery between sulcus deepening trochleoplasty (Lyon) and Bereiter trochleoplasty in patients with high-grade trochlear dysplasia. METHODS: We conducted a meta-analysis comparing Bereiter and Lyon trochleoplasty based on PRISMA guidelines regarding clinical outcome and recurrent instability for high-grade trochlear dysplasia...
December 2023: Knee
#13
JOURNAL ARTICLE
Tommaso Nicetto, Federico Longo
OBJECTIVES: To describe the implant characteristics and surgical application of a custom-made trochlear ridge prosthesis (TRP) and to report clinical outcomes in dogs affected by patellar luxation treated with TRP. STUDY DESIGN: Dogs affected by patellar luxation underwent computed tomography. A specific canine bone anatomical replica, a cutting guide, and a TRP were designed and provided for surgery. Surgical records, clinical and radiographic reassessments, complications, pre- and postoperative lameness, type and degree of patellar luxation, and TRP and patellar position after surgery were reviewed...
October 31, 2023: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
#14
JOURNAL ARTICLE
Jiaxing Chen, Xinyi Li, Yi Feng, Qiaochu Li, Zijie Xu, Linbang Wang, Jian Zhang, Zhengxue Quan, Aiguo Zhou
PURPOSE: To verify that lateral trochlear inclination (LTI) measured by the transepicondylar axis can reliably be used to evaluate trochlear dysplasia (TD) on MRI and can serve as an objective indication of trochleoplasty for patients with lateral patellar dislocation (LPD). METHODS: Eighty patients with recurrent LPD and eighty healthy subjects were included. TD, posterior condylar angle (PCA), and LTI measured by the posterior condylar reference line (LTIp), surgical transepicondylar axis (LTIs), and anatomical transepicondylar axis (LTIa) were assessed on MRI...
December 2023: Knee Surgery, Sports Traumatology, Arthroscopy
#15
JOURNAL ARTICLE
Stephen M Howell, Elliot Sappey-Marinier, Abigail E Niesen, Alexander J Nedopil, Maury L Hull
PURPOSE: The primary aim was to analyze unrestricted kinematic alignment (unKA) total knee arthroplasty (TKA) and determine the frequency of medial deviation of the prosthetic trochlear angle (PTA) of the femoral component relative to the quadriceps vector (QV) that terminates at the anterior inferior iliac spine (AIIS), and whether patients with medial deviation had a worse Forgotten Joint Score (FJS) and Oxford Knee Score (OKS) relative to those with lateral deviation. The secondary aim was to determine the frequency of medial deviation for mechanical alignment (MA) TKA simulations...
October 4, 2023: Knee Surgery, Sports Traumatology, Arthroscopy
#16
JOURNAL ARTICLE
Marcello Capella, Luigi Sabatini, Daniele Camazzola, Salvatore Risitano, Davide D'Antonio, Antonio Rea, Alessandro Massè
The purpose of this paper is to provide a complete Technical Note for our treatment of choice for recurrent patellar dislocation in cases of trochlear dysplasia, especially in patients with types B and D trochlear dysplasia according to the Dejour classification. Different surgical procedures have been reported for the treatment of recurrent patellar instability. One of the most important anatomic factors to address when treating a recurrent patella dislocation is trochlear dysplasia. Few types of open trochleoplasty have been classically described to treat a dysplastic trochlea...
September 2023: Arthroscopy Techniques
#17
REVIEW
Magdalena Tarchala, Sarah Kerslake, Laurie A Hiemstra
PURPOSE OF REVIEW: The most common and biomechanically influential pathoanatomic risk factor for recurrent patellofemoral instability is trochlear dysplasia. Sulcus-deepening trochleoplasty is a procedure developed to address high-grade trochlear dysplasia in the setting of patellofemoral instability. The purpose of this paper is to outline the current classification and surgical management of trochlear dysplasia as well as to review the current literature on the clinical outcomes and complications of sulcus-deepening trochleoplasty...
September 12, 2023: Current Reviews in Musculoskeletal Medicine
#18
JOURNAL ARTICLE
Goda Choi, Jinsu Kang, Namsoo Kim, Suyoung Heo
INTRODUCTION: The purpose of this study was to compare the changes in the patellofemoral joint (PFJ) contact mechanisms of the normal state, trochlear hypoplasia model and after performing trochleoplasty on the hypoplasia model in feline cadavers. METHODS: Twenty normal pelvic limbs were acquired from the 10 feline cadavers. First, the PFJ contact mechanisms were measured in normal state, then trochlear hypoplasia models were created using customized trochlear ridge cutting guides...
2023: Frontiers in Veterinary Science
#19
JOURNAL ARTICLE
Jörg Dickschas, Arno Schmeling, Mario Perl, Michael Simon
No abstract text is available yet for this article.
August 21, 2023: Zeitschrift Für Orthopädie und Unfallchirurgie
#20
JOURNAL ARTICLE
Timothy D Ericksen, Daniel Stobie, Laura Culbert, Dominick Valenzano, Daniel F Bogart
OBJECTIVE: To describe the dome trochleoplasty procedure and report the short-term outcomes and complications associated with a novel technique to correct patellar luxation and patella alta. ANIMALS: 13 dogs (16 stifle joints) diagnosed with medial patellar luxation with concurrent patella alta in dogs > 20 kg. CLINICAL PRESENTATION: Medical records of dogs weighing > 20 kg that underwent a dome trochleoplasty for correction of a medial luxating patella were prospectively evaluated...
August 15, 2023: Journal of the American Veterinary Medical Association
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