Relevancy grading of outcome predicting factors after distal chevron osteotomy for hallux valgus correction

Gerhard Kaufmann; Moritz Wagner; Dietmar Dammerer; Hanno Ulmer; Michael Liebensteiner; Franz Endstrasser; Matthias Braito

Relevancy grading of outcome predicting factors after distal chevron osteotomy for hallux valgus correction

Gerhard Kaufmann¹, Moritz Wagner²^*, Dietmar Dammerer³, Hanno Ulmer⁴, Michael Liebensteiner⁵, Franz Endstrasser⁶ and Matthias Braito⁷: ¹OFZ Innsbruck, Innrain 2/3 Stock, 6020 Innsbruck, Austria; ²Department of Orthopedic Surgery, District Hospital St. Johann, Bahnhofstraße 14, 6380 St. Johann, Australia; ³Department of Orthopaedics and Traumatology, University Hospital Krems, Mitterweg 10, 3500 Krems an der Donau, Austria; ⁴Department of Medical Statistics, Informatics and Health Economics, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; ⁵Department of Orthopedic Surgery, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; ⁶Department of Orthopedic Surgery, District Hospital St. Johann, Bahnhofstraße 14, 6380 St. Johann, Austria; ⁷Department of Orthopedic Surgery, District Hospital St. Johann, Bahnhofstraße 14, 6380 St. Johann, Austria

^*Corresponding Author : Moritz Wagner, Department of Orthopedic Surgery, District Hospital St. Johann, Bahnhofstraße 14, 6380 St. Johann, Austria, Tel: +4367762930592, Email: moritz.wanger@gmail.com

Received Date: Jan 09, 2022 / Published Date: Jan 31, 2022

Abstract

Aim: The purpose of this study was to identify radiographic risk factors for loss of correction (LOC) after hallux valgus surgery and to weight their importance for LOC.

Patients and Methods: We retrospectively assessed radiographs of 1082 consecutive chevron osteotomy cases in regard to early LOC from initially postoperative to six and 12 weeks postoperatively. The influence of preoperative and postoperative radiographic parameters on LOC of hallux valgus angle (HVA) and intermetatarsal 1/2 angle (IMA) was evaluated using nonparametric Spearman’s rank correlations and multiple linear regression analyses.

Results: Mean LOC from initially postoperative to six and 12 weeks postoperatively were 1.4 (SD 2.7) and 3.4 (SD 2.6) degrees for IMA and 3.5 (SD 5.4) and 7.6 (SD 5.6) degrees for HVA, respectively. Significant correlations were found between LOC of HVA and IMA for preoperative IMA, HVA, distal metatarsal articular angle (DMAA), proximal to distal phalangeal articular angle (PDPAA) and joint congruity as well as for postoperative IMA, HVA, PDPAA, joint congruity and sesamoid position. Categorization of outcome-predicting postoperative radiographic factors revealed the following parameters to be important in descending order: HVA, sesamoid position, IMA, PDPAA and joint congruity.

Conclusion: Multiple pre- and postoperative radiological parameters correlate with early loss of correction after hallux valgus surgery. Relevancy grading revealed the postoperative HVA and sesamoid position to be the most important parameters, followed by IMA, PDPAA and joint congruity. In consequence total deformity correction, taking all aspects of the hallux valgus deformity into account, seems reasonable.

Take home message: Total deformity correction taking into account all aspects of the hallux valgus deformity (severity of hallux valgus deformity, joint line orientation and joint congruity, hallux valgus interphalangeus, positioning of the sesamoids) may result in reduced early LOC after distal chevron osteotomy for hallux valgus correction.

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Citation: Kaufmann G, Wagner M, Dammerer D, Ulmer H, Liebensteiner M, et al. (2022) Relevancy grading of outcome predicting factors after distal chevron osteotomy for hallux valgus correction32. Clin Res Foot Ankle, 10: 330.

Copyright: © 2022 Kaufmann G, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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