Precise arthroscopic mini-trochleoplasty combined with medial patellofemoral ligament reconstruction yields comparable complications to isolated medial patellofemoral ligament reconstruction

doi:10.5312/wjo.v17.i5.118163

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World Journal of Orthopedics

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2218-5836

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Retrospective Cohort Study

Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Orthop. May 18, 2026; 17(5): 118163
Published online May 18, 2026. doi: 10.5312/wjo.v17.i5.118163

Table 3 Comparison of patellar instability risk factors between the two groups

	PAM + MPFLR group (n = 30)	MPFLR group (n = 20)	P value¹
TT-TG distance (mm; threshold: 16.4 mm[26])
Preoperative	18.30 ± 2.86	15.47 ± 3.24	0.002
Postoperative	13.90 ± 2.32	14.59 ± 2.22	0.306
P value¹	0.000	0.324
LTI (°; threshold: 16.2°[26])
Preoperative	-4.91 ± 11.00	10.52 ± 7.07	0.000
Postoperative	15.67 ± 9.81	10.98 ± 6.96	0.071
P value¹	0.000	0.839
LPT (°; threshold: 17.2°[26])
Preoperative	29.33 ± 9.05	26.05 ± 7.12	0.179
Postoperative	11.58 ± 8.13	14.13 ± 6.87	0.254
P value¹	0.000	0.000

¹Mann-Whitney U test.

Data are expressed as n or mean ± SD unless otherwise indicated. PAM: Precise arthroscopic mini-trochleoplasty; MPFLR: Medial patellofemoral ligament reconstruction; LTI: Lateral trochlear inclination; TT-TG: Tibial tubercle-trochlear groove; LPT: Lateral patellar tilt.

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Citation: Xu H, Ding M, Liao BH, Lei SG, Zheng C, Wang YC. Precise arthroscopic mini-trochleoplasty combined with medial patellofemoral ligament reconstruction yields comparable complications to isolated medial patellofemoral ligament reconstruction. World J Orthop 2026; 17(5): 118163
URL: https://www.wjgnet.com/2218-5836/full/v17/i5/118163.htm
DOI: https://dx.doi.org/10.5312/wjo.v17.i5.118163

Xu H, Ding M, Liao BH, Lei SG, Zheng C, Wang YC. Precise arthroscopic mini-trochleoplasty combined with medial patellofemoral ligament reconstruction yields comparable complications to isolated medial patellofemoral ligament reconstruction. World J Orthop 2026; 17(5): 118163 [DOI: 10.5312/wjo.v17.i5.118163]

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