Summary: The aims was to evaluate the Judet’s extensive quadriceps release and “à la carte” combined procedures in management of patella-femoral instability in flexion in children and adolescents (37 knees).

Aims: To evaluate the Judet’s extensive quadriceps release and “à la carte” combined procedures in management of patella-femoral instability in flexion.

Methods

37 knees (24 females and 13 males) operated between 2011 and 2021 were included in this retrospective study. 64.9% of patients had associated syndromes. The mean age at surgery was 2.5, 12.2 and 11.7 years for respectively true congenital dislocation (TCPD)(n=7), permanent (PPD)(n=8) and habitual dislocation in flexion (HPDF)(n=22). An extensive quadriceps release was performed for 34 knees and associated to posterolateral structure release for the 7 knees with TCPD. “A la carte” surgery combined MPFL reconstruction (n=25) or VMO advancement (n=9), trochleoplasty (n=12), soft tissue (n=27) or bony (n=5) distal procedure on tibial tuberosity and femoral shortening and derotation osteotomy (4 knees with TCPD). The main outcomes measured were post-operative complications and recurrent dislocations. Functional outcomes were assessed using the Kujala score and simple knee value and also focused on quadriceps strength, active and passive range of knee motion.

Results

The mean post-operative follow-up was 6.5years. Four knees had complication (10.8%), requiring 3 revision surgeries. Three knees (8.1%) had recurrent dislocation; the recurrence occurs in flexion due to incomplete quadriceps release (n=2) or in extension (n=1). The mean post-operative full flexion was 144.7°. The mean Kujala score and simple knee value was respectively 92.7% and 87.3%. None of children operated before the age of 7 had complication or recurrence or positive Smilie test despite surgery were performed in more complex situations and mostly on syndromic patients.

Conclusion

In the treatment of patellar dislocation in flexion, Judet’s procedure in combination with “à la carte” combined procedures, gives a good function with an excellent knee range of motion and quadriceps strength and is associated to low rate of complication or recurrence.

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TT-TG Ratio Provides a More Accurate Estimation of the Amount of Tibial Tubercle Medialization Needed in Patellofemoral Instability ePoster Presentation Tomas Pineda, MD, CHILE Nicolas Cance, MD, FRANCE Michael J. Dan, Mbbs, PhD, MSc(res), FRACS(oath), AUSTRALIA Guillaume Demey, MD, FRANCE David H. Dejour, MD, FRANCE
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Medial Patellotibial Ligament Reconstruction Obtains A Significant Improvement Of Patellar Stability: Motion Analytic Study ePoster Presentation Nadhaporn Saengpetch, MD, THAILAND Potsawat Surabotsopon, MD, THAILAND
OCCURRENCE OF PATELLOFEMORAL OSTEOARTHRITIS AT MEDIUM AND LONG-TERMS AFTER ISOLATED RECONSTRUCTION OF THE MEDIAL PATELLOFEMORAL LIGAMENT WITH MEDIAL THIRD OF THE PATELLAR TENDON ePoster Presentation Fabiano Kupczik, MD, PhD, MSc, BRAZIL Marlus Eduardo Gunia Schiavon, BRAZIL Bruno Sbrissia, MD, BRAZIL Marvin Durante Brunet, MD, BRAZIL Riccardo Gomes Gobbi, MD, PhD, BRAZIL
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Accuracy Of The Patella Alta Assesment Is Poor – Dynamic Vs Static Patellar Height In Relation To Femoral Trochlea ePoster Presentation Petri J. Sillanpää, MD, PhD, FINLAND Timo Rahnel, MD, ESTONIA Aleksi Reito, MD, PhD, FINLAND Antti Launonen, MD, PhD, FINLAND
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
Initial Results from the Creation of a Normative Database for the Banff Patellar Instability Instrument ePoster Presentation Mark Lafave, PhD, CAT(C), CANADA Laurie A. Hiemstra, MD, PhD, FRCSC, CANADA Sarah Kerslake, BPhty, MSc, CANADA Daniel Stolear, MA, CANADA
Effect Of Distal Femoral Osteotomy For Valgus Correction On Change In Patellar Height ePoster Presentation Jacob Milner, MD, UNITED STATES Michael Moore, BA, UNITED STATES Jose Perez MD, MD, UNITED STATES Eric Strauss, UNITED STATES Michael J Alaia, MD, UNITED STATES Abigail Campbell, MD, UNITED STATES Alexander Golant, MD, UNITED STATES
Effects of Fear of Re-Injury, Other Psychological Factors, and Sport Played on Return to Sport Following Operative Treatment for Patellar Instability ePoster Presentation Patrick C. Ryan, MS, UNITED STATES Idaleen C. Ching, BS, UNITED STATES Victoria K. Ierulli, MS, UNITED STATES Mary K. Mulcahey, MD, UNITED STATES
The Short-Term Clinical Results of Isolated Medial Patellofemoral Ligament Reconstruction in Patellar Dislocation: Comparing Superficial Quadriceps Tendon and Hamstring Tendon ePoster Presentation Yuki Suzuki, MD, PhD, JAPAN Yoshimitsu Aoki, MD, PhD, JAPAN Chiharu Inoue, MD, JAPAN Hisashi Matsumoto, PT, JAPAN Satoru Kaneko, MD, JAPAN Kazunori Yasuda, MD, PhD, Prof., JAPAN Tomonori Yagi, MD, PhD, JAPAN Masayuki Inoue, MD, PhD, JAPAN Takuma Katou, MD, JAPAN Eiji Kondo, MD, PhD, JAPAN Harukazu Tohyama, MD, PhD, JAPAN Norimasa Iwasaki, MD, PhD, JAPAN

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Judet’s extensive quadriceps release and “à la carte” combined procedures for patellar dislocation In flexion

Judet’s extensive quadriceps release and “à la carte” combined procedures for patellar dislocation In flexion

Methods

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Conclusion

Knee Patellofemoral ePosters

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Judet’s extensive quadriceps release and “à la carte” combined procedures for patellar dislocation In flexion

Judet’s extensive quadriceps release and “à la carte” combined procedures for patellar dislocation In flexion

Methods

Results

Conclusion