Influence of tibial tuberosity position and trochlear depth on patellar tracking in patellar instability: Variations with Patella Alta.

Clinical Biomechanics
Keegan T ConryJohn J Elias

Abstract

Patella alta reduces articular constraints acting on the patella from the trochlear groove with the knee extended. The current study was performed to address how patella alta alters the influence of tibial tuberosity position and trochlear depth on patellar tracking in patients being treated for patellar instability. Fifteen subjects with recurrent patellar instability participated in knee extension within a dynamic CT scanner. Computational models were reconstructed from the motions to characterize patellar lateral shift, patellar tilt, patellar height, trochlear depth and lateral position of the tibial tuberosity at 0° and 30° of knee flexion. Linear regressions were used to correlate patellar tracking with anatomy for an alta group (7 knees, Caton-Deschamps index > 1.2) and a non-alta group. For the alta group, lateral patellar shift and tilt increased with increasing lateral position of the tibial tuberosity at 0° (r2 > 0.8, P < 0.005). For the non-alta group, lateral patellar shift and tilt increased as depth of the groove decreased at 0° (r2 > 0.8, P = 0.001). Lateral patellar tilt also increased with increasing lateral position of the tibial tuberosity at 30° for the non-alta group (r2 = 0.55, P = 0.04). For patients wit...Continue Reading

References

May 1, 1983·Journal of Biomechanical Engineering·E S Grood, W J Suntay
Jan 27, 2006·The American Journal of Sports Medicine·Arun J RamappaThomas J Gill
Mar 5, 2008·Medicine and Science in Sports and Exercise·Petri SillanpääHarri Pihlajamäki
Oct 16, 2010·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Christine E DraperGarry E Gold
Dec 3, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Archana SaranathanJohn J Elias
Nov 21, 2012·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Saikat PalGarry E Gold
Feb 9, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Robert A MagnussenDavid C Flanigan
Sep 6, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Peter BalcarekKlaus Michael Stürmer
Feb 18, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·John J EliasAndrew J Cosgarea
Jul 27, 2014·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Rahul BiyaniKerwyn C Jones
May 6, 2015·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Miho J TanakaAndrew J Cosgarea
Oct 23, 2015·Journal of Pediatric Orthopedics·Bradley P Jaquith, Shital N Parikh
Feb 29, 2016·The Knee·John J EliasAndrew J Cosgarea
Mar 5, 2016·The Journal of Bone and Joint Surgery. American Volume·Alexander E WeberAsheesh Bedi
May 4, 2017·The American Journal of Sports Medicine·Tyson C ChristensenAaron J Krych
Sep 18, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Nickolas BoutrisJoshua D Harris
Oct 7, 2017·The American Journal of Sports Medicine·Joseph N LiuBeth E Shubin Stein
Jun 29, 2018·EFORT Open Reviews·Cécile Batailler, Philippe Neyret
Jul 20, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·John J EliasAndrew J Cosgarea
Jan 8, 2019·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Mario HevesiAaron J Krych
Dec 2, 2019·The Knee·S Cyrus RezvanifarJohn J Elias
Dec 12, 2019·The American Journal of Sports Medicine·Lachlan S HuntingtonJulian A Feller

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