1. Crossley KM, Stefanik JJ, Selfe J, Collins NJ, Davis
IS, Powers CM, et al. 2016 Patellofemoral pain
consensus statement from the 4th International
Patellofemoral Pain Research Retreat, Manchester.
Part 1: Terminology, definitions, clinical examination,
natural history, patellofemoral osteoarthritis and
patient-reported outcome measures. Br J Sports Med.
2016; 50(14):839-43.
2. Powers CM, Bolgla LA, Callaghan MJ, Collins N,
Sheehan FT. Patellofemoral pain: proximal, distal, and
local factors, 2nd International Research Retreat. J
Orthop Sports Phys Ther. 2012; 42(6):A1-54.
3. Dietrich TJ, Fucentese SF, Pfirrmann CW. Imaging
of individual anatomical risk factors for patellar
instability. Semin Musculoskelet Radiol. 2016;
20(1):65-73.
4. Berruto M, Ferrua P, Carimati G, Uboldi F, Gala L.
Patellofemoral instability: classification and imaging.
Joints. 2013; 1(2):7-14.
5. Alemparte J, Ekdahl M, Burnier L, Hernández R,
Cardemil A, Cielo R, et al. Patellofemoral evaluation
with radiographs and computed tomography scans
in 60 knees of asymptomatic subjects. Arthroscopy.
2007; 23(2):170-7.
6. Dejour D, Le Coultre B. Osteotomies in patellofemoral
instabilities. Sports Med Arthrosc Rev. 2007;
15(1):39-46.
7. Balcarek P, Jung K, Frosch KH, Sturmer KM. Value of
the tibial tuberosity- trochlear groove distance in
patellar instability in the young athlete. Am J Sports
Med. 2011; 39(8):1756-61.
8. Pandit S, Frampton C, Stoddart J, Lynskey T. Magnetic
resonance imaging assessment of tibial tuberositytrochlear
groove distance: normal values for males
and females. Int Orthop. 35(12):1799-803.
9. Ho CP, James EW, Surowiec RK, Gatlin CC, Ellman MB,
Cram TR, et al. Technique-dependent differences
in CT versus MRI measurement of the tibial
tubercletrochlear groove distance. Am J Sports Med.
2015; 43(3):675-82.
10. Dejour H, Walch G, Nove-Josserand L, Guier C. Factors
of patellar instability: an anatomic radiographic
study. Knee Surg Sports Traumatol Arthrosc. 1994;
2(1):19-26.
11. Steensen RN, Bentley JC, Trinh TQ, Backes JR, Wiltfong
RE. The prevalence and combined prevalences of
anatomic factors associated with recurrent patellar
dislocation: a magnetic resonance imaging study. Am
J Sports Med. 2015; 43(4):921-7.
12. Tse MS, Lie CW, Pan NY, Chan CH, Chow HL, Chan
WL. Tibial tuberosity-trochlear groove distance in
Chinese patients with or without recurrent patellar
dislocation. J Orthop Surg (Hong Kong). 2015;
23(2):180-1.
13. Fulkerson JP. Anteromedialization of the tibial
tuberosity for patellofemoral malalignment. Clin Orthop Relat Res. 1983; 177(1):176-81.
14. Tigchelaar S, van Essen P, Benard M, Koeter S,
Wymenga A. A self-centring osteotomy of the tibial
tubercle for patellar maltracking or instability:
results with ten-years’ follow-up. Bone Joint J. 2015;
97(3):329-36.
15. Rillmann P, Oswald A, Holzach P, Ryf C. Fulkerson’s
modified Elmslie-Trillat procedure for objective
patellar instability and patellofemoral pain syndrome.
Swiss Surg. 2000; 6(6):328-34.
16. Bellemans J, Cauwenberghs F, Witvrouw E, Brys
P, Victor J. Anteromedial tibial tubercle transfer
in patients with chronic anterior knee pain and a
subluxation-type patellar malalignment. Am J Sports
Med. 1997; 25(3):375-81.
17. Lund F, Nilsson BE. Anterior displacement of the tibial
tuberosity in chondromalacia patellae. Acta Orthop
Scand. 1980; 51(4):679-88.
18. Stephen JM, Lumpaopong P, Dodds AL, Williams A,
Amis AA. The effect of tibial tuberosity medialization
and lateralization on patellofemoral joint kinematics,
contact mechanics, and stability. Am J Sports Med.
2015; 43(1):186-94.
19. Carlson VR, Boden BP, Shen A, Jackson JN, Yao L,
Sheehan FT. The tibial tubercle-trochlear groove
distance is greater in patients with patellofemoral
pain: implications for the origin of pain and clinical
interventions. Am J Sports Med. 2017; 45(5):1110-6.
20. Wittstein JR, Bartlett EC, Easterbrook J, Byrd
JC. Magnetic resonance imaging evaluation of
patellofemoral malalignment. Arthroscopy. 2006;
22(6):643-9.
21. Jones RB, Bartlett EC, Vainright JR, Carroll RG. CT
determination of tibial tubercle lateralization in
patients presenting with anterior knee pain. Skeletal
Radiol. 1995; 24(7):505-9.
22. Kumar A, Jones S, Bickerstaff DR, Smith TW.
Functional evaluation of the modified Elmslie-Trillat
procedure for patello-femoral dysfunction. Knee.
2001; 8(4):287-92.
23. Palmer SH, Servant CT, Maguire J, Machan S, Parish
EN, Cross MJ. Surgical reconstruction of severe
patellofemoral maltracking. Clin Orthop Relat Res.
2004; 419(1):144-8.
24. Gul S, Lee PY, Davies A. Clinical outcomes of tibial
tubercle transfer for anterior knee pain and patellofemoral
instability. J Arthritis. 2016, 5(3):204-9.
25. Camp CL, Stuart MJ, Krych AJ, Levy BA, Bond JR, Collins
MS, et al. CT and MRI measurements of tibial tubercletrochlear
groove distances are not equivalent in
patients with patellar instability. Am J Sports Med.
2013; 41(8):1835-40.
26. Thakkar RS, Del Grande F, Wadhwa V, Chalian M,
Andreisek G, Carrino JA, et al. Patellar instability: CT
and MRI measurements and their correlation with
internal derangement findings. Knee Surg Sports Traumatol Arthrosc. 2016; 24(9):3021-8.
27. Camathias C, Pagenstert G, Stutz U, Barg A, Müller-
Gerbl M, Nowakowski AM. The effect of knee flexion
and rotation on the tibial tuberosity-trochlear groove
distance. Knee Surg Sports Traumatol Arthrosc. 2016;
24(9):2811-7.
28. Izadpanah K, Weitzel E, Vicari M, Hennig J, Weigel
M, Südkamp NP, et al. Influence of knee flexion
angle and weight bearing on the Tibial Tuberosity-
Trochlear Groove (TTTG) distance for evaluation
of patellofemoral alignment. Knee Surg Sports
Traumatol Arthrosc. 2014; 22(11):2655-61.
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