Evidence Search

[Radiological diagnostics of patellofemoral instability and patellar dislocation].

Radiologie (Heidelberg, Germany) | 2024 | Schuldes S, Hackenbroch C

[Indexed for MEDLINE] 14. Instr Course Lect. 2010;59:195-206. Patellar instability. Redziniak DE(1), Diduch DR, Mihalko WM, Fulkerson JP, Novicoff WM, Sheibani-Rad S, Saleh KJ. Author information: (1)Department of Orthopedics Surgery, Orthopaedic and Sports Medicine Center, Annapolis, Maryland, USA. Patellar instability is a generic term that is used to describe patellar disloc...

Patellofemoral Instability Part I: Evaluation and Nonsurgical Treatment.

The Journal of the American Academy of Orthopaedic Surgeons | 2022 | Pauyo T, Park JP, Bozzo I, Bernstein M

[Indexed for MEDLINE] 3. Sports Med Arthrosc Rev. 2017 Jun;25(2):105-113. doi: 10.1097/JSA.0000000000000147. Rehabilitation After Medial Patellofemoral Ligament Reconstruction. McGee TG(1), Cosgarea AJ, McLaughlin K, Tanaka M, Johnson K. Author information: (1)Departments of *Physical Medicine and Rehabilitation †Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD....

A Review of the Lateral Patellofemoral Joint: Anatomy, Biomechanics, and Surgical Procedures.

Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews | 2022 | Siljander B, Tompkins M, Martinez-Cano JP

[Indexed for MEDLINE] 5. Knee Surg Sports Traumatol Arthrosc. 2025 May;33(5):1925-1932. doi: 10.1002/ksa.12620. Epub 2025 Feb 20. Management of first-time patellar dislocation: The ESSKA 2024 formal consensus-Part 1. Blønd L(1)(2), Askenberger M(3), Stephen J(4), Akmeşe R(5), Balcarek P(6), El Attal R(7), Chouliaras V(8), Ferrua P(9)(10), Monart JM(11), Pagenstert G(12), Sillan...

Bracing for the Patellofemoral Joint.

The journal of knee surgery | 2022 | Phillips R, Choo S, Nuelle CW

[Indexed for MEDLINE] Conflict of interest statement: None declared. 17. Arthrosc Tech. 2024 Jan 1;13(2):102848. doi: 10.1016/j.eats.2023.09.023. eCollection 2024 Feb. Medial Closing-Wedge Patellar Osteotomy in Patients With Patellofemoral Instability. Dejour DH(1), Pineda T(1), Guarino A(1), Dan MJ(1), Giovannetti de Sanctis E(1). Author information: (1)Lyon-Ortho-Clinic: Clin...

The Oswestry-Bristol Classification.

The bone & joint journal | 2020 | Sharma N, Brown A, Bouras T, Kuiper JH

[Indexed for MEDLINE] 8. Clin Sports Med. 2014 Jul;33(3):xiii-xiv. doi: 10.1016/j.csm.2014.05.001. Understanding the patellofemoral joint: from instability to arthroplasty. Meininger AK(1). Author information: (1)Orthopaedic Surgery and Sports Medicine, Steamboat Orthopaedic Associates, P.C., 940 Central Park Drive, Suite 190, Steamboat Springs, CO 80487, USA. Electronic addres...

Rehabilitation After Medial Patellofemoral Ligament Reconstruction.

Sports medicine and arthroscopy review | 2017 | McGee TG, Cosgarea AJ, McLaughlin K, Tanaka M

[Indexed for MEDLINE] 4. J Am Acad Orthop Surg Glob Res Rev. 2022 Jul 20;6(7):e21.00255. doi: 10.5435/JAAOSGlobal-D-21-00255. eCollection 2022 Jul 1. A Review of the Lateral Patellofemoral Joint: Anatomy, Biomechanics, and Surgical Procedures. Siljander B(1), Tompkins M, Martinez-Cano JP. Author information: (1)From the Department of Orthopedic Surgery, University of Minnesota,...

Lateral patellar retinacular release: changes over the last ten years.

Revista brasileira de ortopedia | 2017 | Fonseca LPRMD, Kawatake EH, Pochini AC

Normal anatomy and biomechanics of the knee.

Sports medicine and arthroscopy review | 2011 | Flandry F, Hommel G

[Indexed for MEDLINE] 2. J Am Acad Orthop Surg. 2022 Nov 15;30(22):e1431-e1442. doi: 10.5435/JAAOS-D-22-00254. Epub 2022 Aug 29. Patellofemoral Instability Part I: Evaluation and Nonsurgical Treatment. Pauyo T(1), Park JP, Bozzo I, Bernstein M. Author information: (1)From the Division of Orthopaedic Surgery, McGill University Health Centre, Montreal, Quebec, Canada (Pauyo), the...

Superior pole patellar sleeve fracture after medial patellofemoral ligament reconstruction.

BMJ case reports | 2021 | Moreira FP, Costa FP, Santos SA, Oliveira PR

[Indexed for MEDLINE] Conflict of interest statement: Competing interests: None declared. 16. J Knee Surg. 2022 Feb;35(3):232-241. doi: 10.1055/s-0041-1741429. Epub 2022 Jan 27. Bracing for the Patellofemoral Joint. Phillips R(1)(2), Choo S(1), Nuelle CW(1). Author information: (1)Department of Orthopedic Surgery, Missouri Orthopaedic Institute, University of Missouri, Columbia...

Morphologic Variation of Patellofemoral Joint in Nepalese Patients with Recurrent Patellar Instability: A Case-Control Study

Nepal Orthopedic Association Journal | 2026 | Pranodan Poudel

Background: Recurrent patellar instability (RPI) is strongly influenced by osseous morphology of the patellofemoral joint, yet population-specific data from South Asia remain scarce. This study evaluated magnetic resonance imaging (MRI) parameters of trochlear and patellar geometry in Nepalese patients with RPI compared with matched controls. Methods: In this hospital-based cas...

Impact of Femoral Derotation Osteotomy on Patellofemoral Loading in Patients With Patellofemoral Instability: Insights From a Musculoskeletal Simulation Study

Journal of Orthopaedic Research | 2026 | Bernhard Guggenberger, Hans Kainz, Tanja Kraus, Willi Koller

ABSTRACT Increased femoral version is linked to patellofemoral instability, increased lateral loading of the patella and might be treated with femoral derotation osteotomy (FDO) in excessive cases. However, the effects of FDO on patellofemoral stability and loading while walking are not fully understood and not measurable in vivo. This study used personalized in‐silico musculos...

Recurrent Patellofemoral Instability

Orthopaedic Sports Medicine | 2026 | Magaly Iñiguez Cuadra

Editorial Commentary: How to Pass Go After Medial Patellofemoral Ligament Reconstruction.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association | 2025 | Erickson BJ

[Indexed for MEDLINE] Conflict of interest statement: Disclosures The author (B.J.E.) declares that he has no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. 20. Rev Bras Ortop. 2017 Jun 15;52(4):442-449. doi: 10.1016/j.rboe.2017.06.003. eCollection 2017 Jun-Jul. Lateral patellar retinacular re...

Impact of Femoral and Tibial Torsion on Patellofemoral Loading in Individuals With Patellofemoral Instability

Journal of Orthopaedic Research | 2025 | Bernhard Guggenberger, Willi Koller, Andreas Habersack, Tanja Kraus

ABSTRACTPatellofemoral stability is affected by several morphological factors including torsional alignment. To elucidate the impact of factors responsible for the stability of the patellofemoral joint, biomechanical research utilizes the analysis of joint contact forces. At present, there is a paucity of modeling‐based research examining the influence of lower limb torsion on...

Anatomic Risk Factors for Patellofemoral Joint Instability: An Infographic as a Visual Learning Tool.

Cureus | 2024 | Vasiliadis AV, Troupis T, Chrysikos D, Chytas D

Conflict of interest statement: The authors have declared that no competing interests exist. 11. J Orthop. 2022 Dec 21;36:49-50. doi: 10.1016/j.jor.2022.12.010. eCollection 2023 Feb. Patellofemoral instability: Current status and future perspectives. Migliorini F(1), Maffulli N(2), Vaishya R(3). Author information: (1)Department of Orthopaedic, Trauma, and Reconstructive Surger...

Medial Closing-Wedge Patellar Osteotomy in Patients With Patellofemoral Instability.

Arthroscopy techniques | 2024 | Dejour DH, Pineda T, Guarino A, Dan MJ

Conflict of interest statement: The authors report the following potential conflicts of interest or sources of funding: D.H.D. reports royalties from Arthrex. All other authors (T.P., A.G., M.J.D., E.G.d.S.) declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Full ICMJE au...

Patellofemoral instability: Current status and future perspectives.

Journal of orthopaedics | 2023 | Migliorini F, Maffulli N, Vaishya R

12. Arthroscopy. 2019 Apr;35(4):1147-1151. doi: 10.1016/j.arthro.2019.01.020. Editorial Commentary: Medial Patellofemoral Complex: Driving a Better Understanding of Medial Knee Anatomy. Sobhy MH. Comment on Arthroscopy. 2019 Apr;35(4):1141-1146. doi: 10.1016/j.arthro.2018.08.052. Although its importance as the prime restraint to lateral patellar instability is undoubted, the an...

Radiological evaluation of patellofemoral instability and possible causes of assessment errors: Letter to the editor.

World journal of methodology | 2022 | Mesregah MK

Conflict of interest statement: Conflict-of-interest statement: The author declares that they have no conflict of interest to disclose. 10. Cureus. 2024 Jan 29;16(1):e53170. doi: 10.7759/cureus.53170. eCollection 2024 Jan. Anatomic Risk Factors for Patellofemoral Joint Instability: An Infographic as a Visual Learning Tool. Vasiliadis AV(1), Troupis T(2), Chrysikos D(3), Chytas...

Patellofemoral Instability: a review paper

Journal of Orthopaedic Medicine | 2006 | Richard Ellis, Solomon Abrahams

Medial Patellofemoral Ligament Reconstruction Using Suture Tape for Patellofemoral Joint Instability

Orthopaedic Surgery | 2021 | Jun‐cai Xu, Bo‐xuan Zhang, Yan‐feng Jia, Xiao‐feng Wang

ObjectiveTo describe a surgical technique using suture tape for reconstruction of the medial patellofemoral ligament (MPFL). This technique restores the stability of the reconstructed ligament and has excellent postoperative outcomes.MethodThis is a retrospective analysis. From January 2016 to June 2018, 17 patients underwent MPFL reconstruction using high‐strength suture (Fibe...

Editorial Commentary: Medial Patellofemoral Complex: Driving a Better Understanding of Medial Knee Anatomy.

Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association | 2019 | Sobhy MH

[Indexed for MEDLINE] 13. Radiologie (Heidelb). 2024 Apr;64(4):278-286. doi: 10.1007/s00117-024-01284-2. Epub 2024 Mar 14. [Radiological diagnostics of patellofemoral instability and patellar dislocation]. [Article in German; Abstract available in German from the publisher] Schuldes S(1), Hackenbroch C(2)(3). Author information: (1)Klinik für diagnostische und interventionelle...

Patellofemoral Instability: A Consensus Statement From the AOSSM/PFF Patellofemoral Instability Workshop

Orthopaedic Journal of Sports Medicine | 2018 | William R. Post, Donald C. Fithian

[Patellofemoral arthroplasty].

Operative Orthopadie und Traumatologie | 2017 | Cotic M, Forkel P, Imhoff AB

[Indexed for MEDLINE] 7. Bone Joint J. 2020 Jan;102-B(1):102-107. doi: 10.1302/0301-620X.102B1.BJJ-2019-0366.R3. The Oswestry-Bristol Classification. Sharma N(1), Brown A(1), Bouras T(1), Kuiper JH(1), Eldridge J(2), Barnett A(3). Author information: (1)The Robert Jones and Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Gobowen, UK. (2)Bristol Royal Infirmary, Bristol, U...

Patellofemoral joint is an under reported joint in MRI knee - A retrospective, cross-sectional study.

Annals of medicine and surgery (2012) | 2017 | Khajuria A, Shah A, Khajuria A, Botchu R

19. Arthroscopy. 2025 Dec;41(12):5276-5277. doi: 10.1016/j.arthro.2025.08.004. Epub 2025 Aug 15. Editorial Commentary: How to Pass Go After Medial Patellofemoral Ligament Reconstruction. Erickson BJ(1). Author information: (1)Tarrytown, New York. Medial patellofemoral ligament reconstruction (MPFLR) has been a reliable procedure to allow patients with patellar instability to re...

Treatment of the Objective Patellofemoral Instability

Orthopaedic Journal of Sports Medicine | 2017 | Federico Alfano, Walter Spreafico

Objectives: The aim of this study is to show the different surgical procedures for treating the objective patellar instability, including the different tibial tubercle osteotomies and the sulcus deepening trochleoplasty. Methods: This study analyzed the Caton-Deschamps index used for assessment of patellar height, the distance from the tibial tubercle to the troclear groove (TT...

Arthroscopic assessment of patellofemoral tracking predicts patellar instability

Orthopaedic Journal of Sports Medicine | 2017 | Ritwik Kejriwal, Peter Annear

Objectives: Surgical management of patellar instability includes proximal realignment procedure such as MPFL reconstruction. The decision to add a distal realignment procedure of tibial tubercle transfer is based on severity of patellar instability judged on either TTTG distance or arthroscopic patellofemoral tracking. We set out to validate our use of arthroscopic patellofemor...

Arthroscopic assessment of patellofemoral tracking predicts patellar instability

Orthopaedic Journal of Sports Medicine | 2017 | Ritwik Kejriwal, Peter Annear

Objectives: Surgical management of patellar instability includes proximal realignment procedure such as MPFL reconstruction. The decision to add a distal realignment procedure of tibial tubercle transfer is based on severity of patellar instability judged on either TTTG distance or arthroscopic patellofemoral tracking. We set out to validate our use of arthroscopic patellofemor...

The surgical management of patellofemoral instability: when is an isolated medial patellofemoral ligament reconstruction indicated?

Current Orthopaedic Practice | 2016 | Neil Jain

Many factors contribute to patellofemoral instability. Surgical intervention may include additional procedures to reconstruct the medial patellofemoral ligament (MPFL). This review attempts to ascertain from the literature whether there is a threshold for when an isolated MPFL reconstruction will suffice and when an additional procedure would be required.

Cartilage lesions in Patellofemoral instability

Patellofemoral Instability | 2016 | Raghu Raman

Imaging in Patellofemoral instability

Patellofemoral Instability | 2016 | Anupama Patil

Patellofemoral instability after total knee arthroplasty

Patellofemoral Instability | 2016 | Miten Sheth

Understanding the patellofemoral joint: from instability to arthroplasty.

Clinics in sports medicine | 2014 | Meininger AK

[Indexed for MEDLINE] 9. World J Methodol. 2022 Sep 20;12(5):459-460. doi: 10.5662/wjm.v12.i5.459. eCollection 2022 Sep 20. Radiological evaluation of patellofemoral instability and possible causes of assessment errors: Letter to the editor. Mesregah MK(1). Author information: (1)Department of Orthopaedic Surgery, Menoufia University Faculty of Medicine, Shebin El-Kom, Menoufia...

Treatment options for patellofemoral instability in sports traumatology

Orthopedic Review | 2013

Patellar instability.

Instructional course lectures | 2010 | Redziniak DE, Diduch DR, Mihalko WM, Fulkerson JP

[Indexed for MEDLINE] 15. BMJ Case Rep. 2021 Jan 25;14(1):e239364. doi: 10.1136/bcr-2020-239364. Superior pole patellar sleeve fracture after medial patellofemoral ligament reconstruction. Moreira FP(1), Costa FP(2), Santos SA(2), Oliveira PR(2). Author information: (1)Centro Hospitalar Universitário de São João, Porto, Portugal flaviaandreiapintomoreira@gmail.com. (2)Centro Ho...