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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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 4 Comparison of postoperative complications and clinical data between the precise arthroscopic mini-trochleoplasty + medial patellofemoral ligament reconstruction and medial patellofemoral ligament reconstruction groups, n (%)

	PAM + MPFLR group (n = 30)	MPFLR group (n = 20)	P value¹	PAM + MPFLR cases with type B TD (n = 14)	MPFLR cases with type B TD (n = 10)	P value¹
Redislocation	1 (3.3)	0 (0)	1.000	0 (0)	0 (0)	1.000
Postoperative subluxation	0 (0)	0 (0)	1.000	0 (0)	0 (0)	1.000
Apprehension sign	2 (6.7)	5 (25.0)	0.100	1 (7.1)	4 (40.0)	0.075
Residual instability	3 (10.0)	5 (25.0)	0.240	1 (7.1)	4 (40.0)	0.075
Reduced range of motion	1 (3.3)	0 (0)	1.000	1 (7.1)	0 (0)	1.000
Reoperation	1 (3.3)	0 (0)	1.000	1 (7.1)	0 (0)	1.000
Increased pain	2 (6.7)	1 (5.0)	1.000	0 (0)	0 (0)	1.000
Stiffness	0 (0)	0 (0)	1.000	0 (0)	0 (0)	1.000
Infection	0 (0)	0 (0)	1.000	0 (0)	0 (0)	1.000
Deep vein thrombosis	1 (3.3)	0 (0)	1.000	0 (0)	0 (0)	1.000

¹Fisher’s exact test.

PAM: Precise arthroscopic mini-trochleoplasty; MPFLR: Medial patellofemoral ligament reconstruction; TD: Trochlear dysplasia.

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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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