Summary: MPFL reconstruction after first-time patellofemoral dislocation does not demonstrate a difference in failure rate, patient reported outcomes or complication rate, as compared to MPFLr performed on children and adolescents with recurrent dislocations.

Purpose

MPFL reconstruction is the treatment of choice for recurrent instability. After a first-time dislocation, MPFLr is indicated only in patients with a high risk of recurrence or major osteochondral injury. This study aims to compare outcomes of MPFL reconstruction after first-time dislocation versus recurrent instability in the pediatric population.

Methods

This retrospective cohort study included pediatric and adolescent patients who underwent MPFL reconstruction. Demographic data, risk factors for patellofemoral instability, and injury mechanism were collected. The primary outcome was failure, defined as subsequent dislocation. Secondary outcomes included patient reported outcome measures (IKDC, KOOS, Lysholm scores), return to sport at pre-injury levels (RTS), and complications.

Results

Forty-eight patients were included in the analysis, with a median follow-up of 34.9±11.9 months. There were no significant differences in demographic variables between the two groups. We did not find a significant difference in failure rate (p=0.73). Excellent patient reported outcomes were reported in both groups. No statistically significant difference in IKDC, KOOS and Lysholm scores (98±3.3 vs. 96±7.3, p=0.79; 97±4.5 vs. 94±9.8, p=0.16; 99±2.0 vs. 99±8.0, p=0.47, respectively) were found between the two groups. Complication rates were also not significantly different between recurrent dislocation MPFLr compared to the first-time dislocation patients (12.5% versus 0%, p=0.15).

Conclusion

MPFL reconstruction after first-time patellofemoral dislocation did not demonstrate a difference in failure rate, patient reported outcomes, or complication rate, as compared to MPFLr performed on children and adolescents with recurrent dislocations.

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Comparative Clinical and Radiographic Outcomes of Particulated Juvenile Articular Cartilage Implantation in Shouldered and Unshouldered Patella Cartilage Lesions ePoster Presentation Ryann Davie, MD, UNITED STATES Brittany Margaret Ammerman, MD, MBS, UNITED STATES Bennett Propp, BS, UNITED STATES Erick Marigi, MD, UNITED STATES William A. Marmor, MD, UNITED STATES Kiera A. Kingston, MD, UNITED STATES Natalie K. Pahapill, BS, UNITED STATES Alissa J. Burge, MD, UNITED STATES Audrey Christine Wimberly, MPH, UNITED STATES Joseph T. Nguyen, MPH, UNITED STATES Elizabeth Rose Dennis, MD MS, UNITED STATES Beth Ellen Shubin Stein, MD, UNITED STATES
Efficacy of Single Intra-Articular 2% Sodium Hyaluronate Versus Corticosteroid Injection in Isolated Patellofemoral Osteoarthritis: A Double-Blind, Randomized Controlled Trial ePoster Presentation Pratchaya Manop, MD, THAILAND Korawish Mekariya, MD, THAILAND Bancha Chernchujit, Prof.Dr.med, THAILAND
Adductor Sling Versus Anatomical Technique In Medial Patellofemoral Ligament Reconstruction: A Retrospective Multicenter Study ePoster Presentation Rodrigo Guiloff, MD, Prof, CHILE Jose Tomas Arteaga, MD, Knee fellow, CHILE Jorge Simon Isla, MD, CHILE José Luis Prado, Md, CHILE Francisco Figueroa, MD, CHILE Alex Vaisman, MD, Prof., CHILE Rafael Calvo, MD, CHILE David H. Figueroa, MD, CHILE
Judet’s extensive quadriceps release and “à la carte” combined procedures for patellar dislocation In flexion ePoster Presentation Moritz Konkel, MD, SWITZERLAND Nicolas Cance, MD, FRANCE Franck P. D. A. Chotel, MD, PhD, Prof., FRANCE
Partial Lateral Patellar Facetectomy Is Beneficial For Patients With Patellofemoral Osteoarthritis: A Systematic Review and Meta-Analysis ePoster Presentation Kennan Yeo, MBBS, SINGAPORE Shawn Js Seah, MBBS, SINGAPORE Mark H.X. Yeo, MBBS, SINGAPORE Winston Lim, MBBS, MRCS, M.Med, SINGAPORE Denny T. T. Lie, MBBS, FRCS, FAMS, SINGAPORE
Histologic Analysis Of The MPFL And MQTFL Fibers Demonstrate A Single Ligamentous Complex ePoster Presentation Miho J. Tanaka, MD, PhD, UNITED STATES Yin Hung, MD, UNITED STATES Jorge Chahla, MD, PhD, UNITED STATES Jorge Alfredo Uquillas, PhD., Msc., NETHERLANDS
Risk Factors For Patellofemoral Cartilage Lesions In Patients With Trochlear Dysplasia In The Setting Of Patellar Instability ePoster Presentation Jakob Ackermann, MD, SWITZERLAND Berfin Caliskan, SWITZERLAND Martin Hartmann, MD, SWITZERLAND Lazaros Vlachopoulos, MD, PhD, SWITZERLAND Sandro Fucentese, Prof MD, SWITZERLAND
Clinical And Radiographic Results After Isolated Mpfl Reconstruction For Patella Instability ePoster Presentation Theodoros Mylonas, MD, MSc, GREECE Alexandros Koskiniotis, MD, MSc, GREECE Efstathios Konstantinou, MD, MSc, UNITED STATES Georgios Komnos, MD, PhD, GREECE Vasileios Raoulis, MD, PhD, GREECE Michael E. Hantes, MD, PhD, Prof., GREECE
Influence of tibial tuberosity movement direction on postoperative outcomes of combined Maquet procedure and autologous cartilage implantation for patellofemoral cartilage injury ePoster Presentation Junya Tsukisaka , MD, JAPAN Atsuo Nakamae, MD, PhD, JAPAN Akinori Nekomoto, MD, PhD, JAPAN Naofumi Hashiguchi, MD,MPH, JAPAN Shunya Tsuji, MD, JAPAN Nobuo Adachi, MD, PhD, JAPAN
Outcomes Of Arthroscopic Patella Realignment In Children And Adolescents With A Minimum 2-Year Follow Up ePoster Presentation Serafina Faith Zotter, BS, UNITED STATES Georgia Butler, -, UNITED STATES Wei Shao Tung, BS, UNITED STATES Connor Thomas Wright, BA, UNITED STATES Kristen N. Reikersdorfer, BA, UNITED STATES Nikolaos K. Paschos, MD, PhD, UNITED STATES
The Interaction of Race and Socioeconomic Deprivation in Treatment of Patellofemoral Instability: Data from the JUPITER Cohort ePoster Presentation Jacqueline M. Brady, MD, UNITED STATES Elizabeth Rose Dennis, MD MS, UNITED STATES Bennett Propp, BS, UNITED STATES Justin Hicks, UNITED STATES Heath Patrick Gould, MD, UNITED STATES Natalie K. Pahapill, BS, UNITED STATES Audrey Christine Wimberly, MPH, UNITED STATES Joseph T. Nguyen, MPH, UNITED STATES Matthew William Veerkamp, BA, UNITED STATES Eric J. Wall, MD, UNITED STATES Shital N. Parikh, MD, UNITED STATES Beth Ellen Shubin Stein, MD, UNITED STATES
Torsional Limb Deformities In Patients With Lateral Patellar Dislocation: An Expert Survey Of The International Patellofemoral Study Group. ePoster Presentation Guido Wierer, MD, AUSTRIA Danko Dan Milinkovic, MD, GERMANY Gerd Seitlinger, MD, AUSTRIA Michael C. Liebensteiner, MD, PhD, AUSTRIA William R. Post, MD, UNITED STATES Philipp Wilhelm Winkler, MD, Assoc. Prof., AUSTRIA
Medial Patellotibial Ligament Reconstruction Obtains A Significant Improvement Of Patellar Stability: Motion Analytic Study ePoster Presentation Nadhaporn Saengpetch, MD, THAILAND Potsawat Surabotsopon, MD, THAILAND
There is a Difference in Preoperative Through-the-Knee Femorotibial Rotation in Pediatric Patients with Anterior Cruciate Ligament Rupture Versus Patients with Patellofemoral Instability ePoster Presentation Danielle E. Chipman, BS, UNITED STATES Nicolas Pascual-Leone, MD, UNITED STATES Preston W Gross, BS, UNITED STATES Emilie Lijesen, BS, UNITED STATES Shae K Simpson, BS, UNITED STATES Roger F Widmann, MD Peter D. Fabricant, MD, MPH, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES

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Clinical Outcomes For MPFL Reconstruction After First-Time Vs. Recurrent Patella Dislocations

Clinical Outcomes For MPFL Reconstruction After First-Time Vs. Recurrent Patella Dislocations

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Clinical Outcomes For MPFL Reconstruction After First-Time Vs. Recurrent Patella Dislocations

Clinical Outcomes For MPFL Reconstruction After First-Time Vs. Recurrent Patella Dislocations

Purpose

Methods

Results

Conclusion