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Pihlajalinna Hospital Tampere Finland Tampere FINLAND Petri Sillanpää MD, PhD, is chief surgeon at Pihlajalinna Hospital Tampere, Finland. He is an expert in knee and sports medicine, especially patellofemoral joint and pediatric knee disorders. His academic dissertation took place in Tampere University in 2009, titled: "Traumatic Patellar Dislocation and Clinical Significance of Medial Patellofemoral Ligament Injury". Petri is current president of Finnish Arthroscopy & Knee Association. He is past chair and member of ESSKA Patellofemoral Instability Committee. Petri was selected for ISAKOS patellofemoral traveling fellowship in 2010, and visited many high-level centers in USA, Asia and Europe. He was also selected for ESSKA-APKASS travelling fellowship in 2012. He is a member of IPSG (International Patellofemoral Study Group). http://www.polvilumpio.fi ISAKOS Active Member
Effect Of Distal Femoral Osteotomy For Valgus Correction On Change In Patellar Height Alexander Golant, MD, UNITED STATESThe Lateral Patellar Retinaculum is Thicker in Pediatric and Adolescent Patients with Patellofemoral Instability Daniel W. Green, MD, MS, UNITED STATESEffects of Fear of Re-Injury, Other Psychological Factors, and Sport Played on Return to Sport Following Operative Treatment for Patellar Instability Mary K. Mulcahey, MD, UNITED STATESIncreased TT-TG and Sulcus Angle are Associated with Patella Osteochondritis Dissecans Daniel W. Green, MD, MS, UNITED STATESSignificantly Greater Incidence Of Patella Fracture After Medial Patellofemoral Ligament Reconstruction For Patients Age 20 And Under Miho J. Tanaka, MD, PhD, UNITED STATESThe Flexion Angle and the Intra-Articular Version in Different MRI Recording Techniques Influence the Tibial Tuberosity - Trochlea Groove Distance Adrian Deichsel, MD, GERMANYComparative Clinical and Radiographic Outcomes of Particulated Juvenile Articular Cartilage Implantation in Shouldered and Unshouldered Patella Cartilage Lesions Brittany Margaret Ammerman, MD, MBS, UNITED STATESHistologic Analysis Of The MPFL And MQTFL Fibers Demonstrate A Single Ligamentous Complex Miho J. Tanaka, MD, PhD, UNITED STATESIncidence Of False Positives Pathological Patellar Tilt Angle due to Knee Internal Torsion Ricardo D. Manilov, MD, ARGENTINATT-TG Ratio Provides a More Accurate Estimation of the Amount of Tibial Tubercle Medialization Needed in Patellofemoral Instability Tomas Pineda, MD, CHILEThere is a Difference in Preoperative Through-the-Knee Femorotibial Rotation in Pediatric Patients with Anterior Cruciate Ligament Rupture Versus Patients with Patellofemoral Instability Daniel W. Green, MD, MS, UNITED STATESAnatomical Risk Factors For Patellofemoral Instability Differ Among Patients With Trochlear Dysplasia Depending On Their Dejour Classification Martin Hartmann, MD, SWITZERLANDMorphological risk of the femur causing anterior cruciate ligament (ACL) injuries : comparative 3-Dimensional mean model analysis of ACL and non-injured patients So Heun Lee, M.S - Ph.D.student, KOREA, REPUBLIC OFOutcomes of Isolated Medial Patellofemoral Ligament Reconstruction after First-Time and Recurrent Patellar Instability: Recurrence, Return to Sport, And Osteochondral Injury: Data from the JUPITER Cohort Jacqueline M. Brady, MD, UNITED STATESWeight Matters: The Causal Role Of Birth And Childhood Body Size In Rcurrent Patellar Dislocation Chao Zhang, CHINAHeadless Screw Fixation Lowers Re-Operation Rate Following Tibial Tubercle Osteotomy Seth L. Sherman, MD, UNITED STATES3D-Pass (3D Patellar Instability Anatomical Severity Score): A Novel Metric Using Machine Learning To Predict Treatment Outcome In Patella Instability Seth L. Sherman, MD, UNITED STATESInitial Results from the Creation of a Normative Database for the Banff Patellar Instability Instrument Mark Lafave, PhD, CAT(C), CANADAThree-Dimensional CT Bone Model Improves Interobserver Reliability of Trochlea Dysplasia Using the Dejour Classification in Patients with Patellar Dislocation Rika Shigemoto, MD, JAPANPartial Lateral Patellar Facetectomy Is Beneficial For Patients With Patellofemoral Osteoarthritis: A Systematic Review and Meta-Analysis Kennan Yeo, MBBS, SINGAPOREGrading Severity in Trochlear Dysplasia: a Pilot Study Juan Pablo Martinez-Cano, MD, MSc, PhD, COLOMBIAMedial Patellotibial Ligament Reconstruction Obtains A Significant Improvement Of Patellar Stability: Motion Analytic Study Nadhaporn Saengpetch, MD, THAILANDYour Patella Dislocated: Will It Happen Again? An Assessment Of Mri Criteria For Recurrent Patella Dislocation After An Initial Event Mauricio Drummond, Jr., MD, UNITED STATESOCCURRENCE OF PATELLOFEMORAL OSTEOARTHRITIS AT MEDIUM AND LONG-TERMS AFTER ISOLATED RECONSTRUCTION OF THE MEDIAL PATELLOFEMORAL LIGAMENT WITH MEDIAL THIRD OF THE PATELLAR TENDON Fabiano Kupczik, MD, PhD, MSc, BRAZILReporting Bias is Highly Prevalent in Systematic Reviews and Meta-Analyses of Medial Patellofemoral Ligament Reconstruction Mary K. Mulcahey, MD, UNITED STATESAdductor Sling Versus Anatomical Technique In Medial Patellofemoral Ligament Reconstruction: A Retrospective Multicenter Study Jose Tomas Arteaga, MD, Knee fellow, CHILEAnalyzing the Alignment Error in Tibial Tuberosity-Trochlear Groove Distance (TT-TG) in Clinical Scans Using 2D and 3D Methods Johannes M. Sieberer, MSc, AUSTRIAIs it correct to perform lateral release in combination with MPFL reconstruction in patients with acute patellar dislocation? A finite element analysis study Giuseppe Salvatore, MD, PhD, ITALYReturn to Sports is Faster with Combined Reconstruction of the MPFL and MQTFL Compared to Isolated MPFL Reconstruction: Preliminary Results Luís Duarte Silva, MD, PORTUGALPure Distalization Tibial Tubercle Osteotomy Does Not Result In Posteriorization Of The Tibial Tubercle Nathan Varady, MD, MBA, UNITED STATESPatellar Dislocation During Examination Under Anesthesia As A Diagnostic Test For Patellar Instability: Data From Jupiter Cohort Shital N. Parikh, MD, UNITED STATESCross-Cultural Translation and Validation of The Spanish Version of The Norwich Patellofemoral Instability (NPI) Score Juan Pablo Martinez-Cano, MD, MSc, PhD, COLOMBIACLINICAL AD RADIOLOGICAL OUTCOMES AFTER ISOLATED MEDIAL PATELLOFEMORAL RECONSTRUCTION FOR RECURRENT PATELLAR DISLOCATION WITH COMPLETELY IMPLANT FREE TECHNIQUE AMONG POPULATION OF YOUNG SPORT PATIENTS Matteo Baldassarri, MD, ITALYRadiographic Landmarks Of Medial Patellofemoral Ligament Reconstruction: A Systematic Review And Meta-Analysis Of Femoral Tunnel Position Larry Chen, BS, UNITED STATESSurgical Management of First-Time Patellar Dislocations in Pediatric Patients May Lower Rates of Redislocation Compared to Conservative Management: A Systematic Review and Meta-Analysis Benjamin Blackman, BHSc. (Honors), CANADAMedial PatelloTibial Ligament Reconstruction in Pediatric and Adolescent Patients with Patella Dislocation in Flexion Daniel W. Green, MD, MS, UNITED STATESIs Quadricep Tendon A Suitable Graft Option For Medial Patellofemoral Ligament Reconstruction? A Systematic Review And Meta-Analysis. Shahbaz S. Malik, BSc, MB BCh, MSc (Orth Engin), LLM, FRCS (Tr&Orth), UNITED KINGDOMIsolated Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Instability Regardless of Tibial Tubercle-Trochlear Groove Distance and Patellar Height: Differential Outcomes for Chondral Defects Elizabeth Rose Dennis, MD MS, UNITED STATESFrom Clinic To Smartphone: A Randomized Controlled Trial Of A Novel Digital Therapeutic For Patellofemoral Pain Integrating Exercise And Cognitive-Behavioral Therapy Jae-Young Park, MD, KOREA, REPUBLIC OFHow Should I Measure Proximal Femoral Version In Torsional Deformity? A New, Easy And Reproducible Measurement Method Using Maximum Intensity Projection (Mip) Imaging On Ct Scan. Federica Rosso, MD, ITALYThe Prevalence Of Associated Anatomical Risk Factors For Patellofemoral Joint Pathology In Patients Undergoing Rotational Osteotomy And The Implication For The Level Of Correction. Martyn Snow, FRCS, UNITED KINGDOMA Prospective Cohort Study Investigating the Safety and Efficacy of Tibial Tubercle Osteotomy Using a Novel Multi-Directional Tibial Tubercle Transfer System Seth L. Sherman, MD, UNITED STATESPredictors of Increased Complication Rate Following Tibial Tubercle Osteotomy (TTO) Alexander Golant, MD, UNITED STATESInfluence of tibial tuberosity movement direction on postoperative outcomes of combined Maquet procedure and autologous cartilage implantation for patellofemoral cartilage injury Junya Tsukisaka , MD, JAPANClinical And Radiographic Results After Isolated Mpfl Reconstruction For Patella Instability Theodoros Mylonas, MD, MSc, GREECENew Sagittal Measurements To Distinguish Between Patellar Instability And Control Patients Marc Tompkins, MD, UNITED STATESJudet’s extensive quadriceps release and “à la carte” combined procedures for patellar dislocation In flexion Moritz Konkel, MD, SWITZERLANDUtility of 3D biomodels in the surgical planning of femoral derotational osteotomies Caterina Chiappe , MD, SPAINQuantitative Assessment of Knee Joint Kinematics In Patients with Recurrent Patellar Dislocation – Using a 3D-3D Surface Registration Technique and 4-D CT Analysis – Kazuya Kaneda, MD, PhD, JAPANFEMORAL MALTORSION INFLUENCES BOTH PATELLOFEMORAL AND TIBIOFEMORAL CONTACT PRESSURE. A BIOMECHANICAL EVALUATION Caterina Chiappe , MD, SPAINThe Effect Of Tibial Tubercle Osteotomy And Trochleoplasty On Femorotibial Rotation In Patients With Patellar Instability Martin Hartmann, MD, SWITZERLANDResults Of Mpfl Reconstruction Using Soft Tissue Fixation Technique Associated With A Procedure On The Att For Patellar Instability : An Average Follow-Up Of 8.8 Years Marine Aubey, Student, FRANCERadiologic Risk Factors for Osteochondral Fractures in First-Time and Recurrent Patellar Instability Patients Henry B. Ellis, MD, UNITED STATESTibial Tuberosity to Trochlear Groove Distance (TT-TG): A Breakdown into Two Principal Components Johannes M. Sieberer, MSc, AUSTRIAOutcomes of Skeletally Immature Patients Undergoing Isolated Medial Patellofemoral Ligament Reconstruction: Data from the JUPITER Cohort Lauren H Redler, MD, UNITED STATESHow Much Improvement in Patient-Reported Outcome Measures After Isolated Medial Patellofemoral Ligament Reconstruction is Associated with Surgeon-Defined Satisfactory Outcomes? A Jupiter Study Shital N. Parikh, MD, UNITED STATESAssociation Between Articular Incongruence Post-Trochleoplasty And Long-Term Patellofemoral Osteoarthritis Tomas Pineda, MD, CHILETorsional Limb Deformities In Patients With Lateral Patellar Dislocation: An Expert Survey Of The International Patellofemoral Study Group. Guido Wierer, MD, AUSTRIAAn Oblique Transposition Quadricepsplasty Provides Excellent Outcomes For The Treatment Of Type Iv (Obligatory, Flexion-Range) Patellar Dislocation Philip Wilson, MD, UNITED STATESRisk Factors For Patellofemoral Cartilage Lesions In Patients With Trochlear Dysplasia In The Setting Of Patellar Instability Berfin Caliskan, SWITZERLANDStraight Anteriorization Tibial Tubercle Osteotomy Is Safe and Effective for Patellofemoral Cartilage Lesions Nathan Varady, MD, MBA, UNITED STATESThe Dejour Classification for Trochlear Dysplasia: Are We Speaking the Same Language? Juan Pablo Martinez-Cano, MD, MSc, PhD, COLOMBIAEcho Assisted Reconstruction Of The Medial Patellofemoral Ligament Alex Dante Antezana Arzabe, Médico, BOLIVIAPatellar Tendon To Lateral Trochlear Ridge (PT-LTR) as an Indicator of Patellar Instability With Malalignment Brittany Margaret Ammerman, MD, MBS, UNITED STATESOutcomes Of Arthroscopic Patella Realignment In Children And Adolescents With A Minimum 2-Year Follow Up Serafina Faith Zotter, BS, UNITED STATESEfficacy of Single Intra-Articular 2% Sodium Hyaluronate Versus Corticosteroid Injection in Isolated Patellofemoral Osteoarthritis: A Double-Blind, Randomized Controlled Trial Pratchaya Manop, MD, THAILANDThe Interaction of Race and Socioeconomic Deprivation in Treatment of Patellofemoral Instability: Data from the JUPITER Cohort Jacqueline M. Brady, MD, UNITED STATESFactors Associated with the Decision to Perform a Lateral Retinacular Release or Lengthening During Medial Patellofemoral Ligament Reconstruction in the JUPITER Cohort Daniel W. Green, MD, MS, UNITED STATESAccuracy Of The Patella Alta Assesment Is Poor – Dynamic Vs Static Patellar Height In Relation To Femoral Trochlea Petri J. Sillanpää, MD, PhD, FINLANDTranslation and Validation of The Spanish Version of The Banff Patellofemoral Instability Instrument 2.0 (BPII) Juan Pablo Martinez-Cano, MD, MSc, PhD, COLOMBIACurvature Analysis Of The Distal Femur As A Tool To Classify Trochlear Dysplasia Johannes M. Sieberer, MSc, AUSTRIAClinical Outcomes For MPFL Reconstruction After First-Time Vs. Recurrent Patella Dislocations Serafina Faith Zotter, BS, UNITED STATES3D Curvature Analysis as a Visualization Tool for Trochlea Dysplasia Johannes M. Sieberer, MSc, AUSTRIAThe length of the popliteus on sagittal views correlates with high tibiofemoral rotations and patellar instability Shelby T Desroches, MS, UNITED STATESThe Short-Term Clinical Results of Isolated Medial Patellofemoral Ligament Reconstruction in Patellar Dislocation: Comparing Superficial Quadriceps Tendon and Hamstring Tendon Yuki Suzuki, MD, PhD, JAPANGenetic Evidence Suggests Education Reduces Risk Of Patellar Dislocation: Insights From Mendelian Randomization Chao Zhang, CHINAHigh Success And Low Complication Rates Following Revision Tibial Tubercle Osteotomy Nathan Varady, MD, MBA, UNITED STATES
2025 Congress ePoster Presentation PDF 2025 Not yet rated
Knee Patellofemoral Instability Repair / Reconstruction Osteotomy Dislocation Ligaments Bones Arthritis Osteoarthritis
Tricks and Pearls for the Management of Patellofemoral Instability in Children and Adolescents David H. Dejour, MD, FRANCE Elizabeth A. Arendt, MD, UNITED STATESHow to Fix and Deal with an Acute Torn MPFL (Repair Reconstruct?) Petri J. Sillanpää, MD, PhD, FINLANDAlgorithm for Surgical Indication Daniel W. Green, MD, MS, UNITED STATESIs Bony Procedure Allowed? Which One? Nikolaos K. Paschos, MD, PhD, UNITED STATESHow to Fix and Deal with Osteochondral Bone Fracture David H. Dejour, MD, FRANCEDiscussion
2023 Congress Symposium Video 45 minutes group rating (4)
David H. Dejour, MD, FRANCE
Knee Patellofemoral Instability Osteotomy X-ray MRI CT-Scan Sport Specific Injuries Recurrent Subluxation and Dislocation
2023 Congress Award Presentation Video 17 minutes Not yet rated
Brett A. Fritsch, MBBS BSc(Med), FRACS, FAOrthA, AUSTRALIA Seth L. Sherman, MD, UNITED STATES Sachin Tapasvi, MBBS, MS, DNB, FRCS, INDIA
Knee Patellofemoral
Patellofemoral Research Excellence Award Brett A. Fritsch, MBBS BSc(Med), FRACS, FAOrthA, AUSTRALIA Seth L. Sherman, MD, UNITED STATES Sachin Tapasvi, MBBS, MS, DNB, FRCS, INDIATrochlear Morphology and Cartilage Viability After Mini-Open Lateral Approach Trochleaplasty for Patellar Dislocation – 5 Year MRI Follow-Up Study Petri J. Sillanpää, MD, PhD, FINLAND
Introduction Petri J. Sillanpää, MD, PhD, FINLANDManagement for First-time Patellar Pediatric Dislocation Petri J. Sillanpää, MD, PhD, FINLANDOsteochondral Injuries in Patellofemoral Joint - Perspective Nicole A. Friel, MD, MS, UNITED STATESMPFL Reconstruction in Skeletally Immature Masataka Deie, MD, PhD, Prof., JAPANComplex Patellar Dislocation in Skeletally Immature - Surgical Solution Principles Daniel W. Green, MD, MS, UNITED STATESTrochlear Dysplasia in Skeletally Immature - Perspective Petri J. Sillanpää, MD, PhD, FINLANDDiscussion
2021 Congress Instructional Course Lecture Video 85 minutes group rating (27)
Petri J. Sillanpää, MD, PhD, FINLAND
Knee Patellofemoral Dislocation Repair / Reconstruction Cartilage Instability Patellofemoral Ligament Rupture Recurrent Subluxation and Dislocation MRI Acute Patella Dislocation
Introduction Mark G. Clatworthy, FRACS, NEW ZEALANDComplex ACL and Revision ACL Cases Timothy S. Whitehead, MBBS, FRACS, AUSTRALIAPCL and Multiligament Injuries Brett A. Fritsch, MBBS BSc(Med), FRACS, FAOrthA, AUSTRALIAMeniscal Repair Cases Annunziato Amendola, MD, UNITED STATESOsteotomy Cases Christopher J. Vertullo, MBBS, PhD, FRACS(Orth), AUSTRALIAArticular Cartilage Repair Cases Seth L. Sherman, MD, UNITED STATESPatellofemoral Instability Cases Elizabeth A. Arendt, MD, UNITED STATESPatellofemoral Instability Cases Julian A. Feller, FRACS, FAOrthA, AUSTRALIAPatellofemoral Instability Cases Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, QATARPatellofemoral Instability Cases Petri J. Sillanpää, MD, PhD, FINLANDDiscussion Elizabeth A. Arendt, MD, UNITED STATES
2019 Congress Symposium Video 168 minutes group rating (3)
Knee Patellofemoral Instability Osteoarthritis Recurrent Subluxation and Dislocation Patellofemoral Osteoarthritis Osteotomy Cartilage Meniscus Repair / Reconstruction
Management of Recurrent Dislocation and Habitual Dislocation Masataka Deie, MD, PhD, Prof., JAPANPatella Alta, Generalized Ligament Laxity: How to Manage Jack T. Andrish, MD, UNITED STATESDiagnostics and Management of Pediatric First-Time Patellar Dislocation Franck P. D. A. Chotel, MD, PhD, Prof., FRANCEMPFL Reconstruction in the Skeletally Immature Petri J. Sillanpää, MD, PhD, FINLANDBony Abnormalities in the Skeletally Immature: Surgical Options Daniel W. Green, MD, MS, UNITED STATES
2019 Congress Symposium Video 63 minutes group rating (2)
Knee Patellofemoral Recurrent Subluxation and Dislocation Dislocation Instability Patellofemoral Ligament Rupture Acute Patella Dislocation Ligaments X-ray MRI
ISAKOS Newsletters Current Concepts eBook 2017 Not yet rated
Pediatric / Adolescent Knee Patellofemoral Ligaments Instability Practice Management Rehabilition / Physical Therapy Repair / Reconstruction Acute Patella Dislocation Recurrent Subluxation and Dislocation
Etiologies of First time Patellar Dislocation Elvire Servien, MD, PhD, Prof., FRANCEPrimary treatment of the first-time dislocation Pieter J. Erasmus, MBChB, MMed, FCS(Orth), SOUTH AFRICAFirst time Dislocation in the Pediatric Patient Petri J. Sillanpää, MD, PhD, FINLANDIndications for MPFL reconstruction alone vs combined procedures Robert A. Magnussen, MD, MPH, UNITED STATESTechnique for isolated MPFL Reconstruction Mitsuo Ochi, MD, PhD, JAPANCase Presentations & Discussion Diane L. Dahm, MD, UNITED STATES
2017 Congress Symposium Video 63 minutes group rating (11)
Diane L. Dahm, MD, UNITED STATES
Knee Patellofemoral MRI Practice Management Repair / Reconstruction Instability Outcome Studies Biomechanics Acute Patella Dislocation Recurrent Subluxation and Dislocation
Medial Patellofemoral Anatomy Laurie A. Hiemstra, MD, PhD, FRCSC, CANADAImaging the Patellofemoral Joint Ryosuke Kuroda, MD, PhD, JAPANClassification of Patellofemoral Instability Shital N. Parikh, MD, UNITED STATESPatellofemoral Replacement Philip B. Schoettle, MD, PhD, Assoc. Prof., GERMANYLateral Release or Lengthening Ashraf Abdelkafy, MD, PhD, EGYPTMedial Reconstruction Jason L. Koh, MD, MBA, UNITED STATESTrochlea Dysplasia Elvire Servien, MD, PhD, Prof., FRANCEOsteotomies in PF Arthritis Geraldo Luiz Schuck de Freitas, PhD, BRAZILPediatric Patellofemoral Surgery Petri J. Sillanpää, MD, PhD, FINLANDComplications of MPFL Reconstruction Nicola Maffulli, MD, PhD, MS, FRCS(Orth), UNITED KINGDOMPatellofemoral Joint Preservation K. Fredrik Almqvist, MD, PhD, UNITED ARAB EMIRATESDiscussion Laurie A. Hiemstra, MD, PhD, FRCSC, CANADA
2015 Congress Symposium Video 63 minutes group rating (18)
Philippe Noel Neyret, MD, PhD, Prof., FRANCE John P. Fulkerson, MD, UNITED STATES
Knee Patellofemoral Recurrent Subluxation and Dislocation Instability Repair / Reconstruction Patellofemoral Osteoarthritis Arthritis Ligaments Osteoarthritis X-ray
2013 Congress Paper Abstract Web Not yet rated
Pediatric / Adolescent Knee Patellofemoral Dislocation Instability MRI Epidemiology Outcome Studies Acute Patella Dislocation
Board of Directors member for ESSKA, International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine