Mid-term Outcome (11-90 months) of the Extensor Retinaculum Flap Procedure for Extensor Carpi Ulnaris Tendon Instability

Overview

Journal Arch Orthop Trauma Surg

Specialties Emergency Medicine
General Surgery
Orthopedics

Date 2019 Jun 22

PMID 31222435

Citations 4

Authors

Kaiser Peter

Haug Luzian

Gabl Markus

Rudisch Ansgar

Klauser Andrea

Rohit Arora

Affiliations

Soon will be listed here.

Abstract

Introduction: The aim of our study was the assessment of the mid-term outcome of patients treated with a pediculated extensor retinaculum flap for extensor carpi ulnaris (ECU) tendon subluxation including postoperative tendon stability control.

Materials And Methods: Twelve patients treated with an extensor retinaculum flap for symptomatic ECU tendon instability were retrospectively evaluated. Follow-up examinations included functional and radiologic assessment. The range of motion, grip strength, DASH score, PRWE score, Krimmer score and subjective satisfaction were recorded. A rotation-movie MRI was conducted before and after surgery to visualize tendon displacement.

Results: Wrist extension was 65.8° (SD 10.0°), flexion 64.2° (SD 12.2°), radial deviation 15.8° (SD 6.0°), ulnar deviation 32.1° (SD 7.2°), pronation 82.5° (SD 9.4°) and supination 85.0° (SD 9.0°). Mean grip strength was 30.5 kg (SD 8.9 kg). Six patients presented an excellent, four a good, one a fair and one a poor result on the Krimmer score. The DASH and PRWE scores showed a mean of 24.2 (SD 25.1) and 32.2 (SD 29.4) points. MRI showed a dislocation (n = 7) or subluxation (n = 5) of the ECU tendon preoperatively. Five patients showed an unchanged displacement pattern postoperatively.

Conclusion: The pediculated extensor retinaculum flap as a treatment for a symptomatic ECU instability shows good to excellent results and a high subjective satisfaction independent of postoperative ECU tendon displacement.

Citing Articles

Operative Management of Extensor Carpi Ulnaris Instability: A Systematic Review.

Lari A, Burhamah W, Alherz M, Prada C J Wrist Surg. 2024; 13(3):272-281.

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Extensor Carpi Ulnaris Instability: A Comprehensive Review of Pathology and Operative Techniques.

Thirumavalavan J, Ibrahim Z, Byrne R, Arant K, Gil J Hand (N Y). 2023; 19(7):1090-1096.

PMID: 37226412 PMC: 11483755. DOI: 10.1177/15589447231168908.

Extensor Carpi Ulnaris Subluxation.

Byrd J, Sasor S, Chung K Hand Clin. 2021; 37(4):487-491.

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"Snapping" of the extensor carpi ulnaris tendon in asymptomatic population.

Erpala F, Ozturk T BMC Musculoskelet Disord. 2021; 22(1):387.

PMID: 33902526 PMC: 8077812. DOI: 10.1186/s12891-021-04271-z.

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