Management of chronic mallet finger: Indications and long-term results of Fowler central slip tenotomy and distal interphalangeal joint arthrodesis - 23/04/23
, Guillaume Bacle a, Jacky Laulan a, Alexandre Morante De Los Reyes a, Yanis Dechir a, Steven Roulet b
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Abstract |
Introduction |
Many surgical techniques have been described to correct the sequelae of chronic mallet fingers (MF), but no clear therapeutic strategy has been defined. We have reported the choice of their management according to the severity of the deformities. Two procedures were compared: Fowler's central slip tenotomy (CST) and arthrodesis of the distal interphalangeal joint (DIP).
Hypothesis |
The use of our decision tree, based on the severity of deformity (flexion deformity at the DIP and recurvatum at the proximal interphalangeal joint), allows good long-term clinical results to be obtained.
Material and methods |
Thirty-three patients (34 fingers) were operated on for sequelae of chronic MF either by CST or by DIP arthrodesis. Patients with ≤35° DIP flexion deformity and <25° proximal interphalangeal (PIP) recurvatum, without DIP joint involvement (osteoarthritis, subluxation, stiffness), were treated with CST. For the others, arthrodesis of the DIP joint was performed.
Results |
Thirteen patients (13 fingers) were evaluated in the CST group with a mean follow-up of 13 years. There were no postoperative complications and no failures. The mean DIP residual extension lag was 4.23° with complete correction of the PIP recurvatum. All patients would redo the intervention in hindsight. The improvement in Quick-DASH was statistically significant (p=0.01). Twenty patients (21 fingers) were included in the DIP arthrodesis group with a mean follow-up of 10 years. Two failures (9.5%) occurred due to failed correction of the PIP recurvatum. No worsening of the deformities was reported, and they were corrected in 90% of cases. The absence of correction of the PIP recurvatum was more frequent in MF bone (p=0.01). All except 1 (95%) patient, who reported a lack of mobility of the DIP joint, would repeat the procedure. Quick-DASH was improved for all patients.
Discussion |
CST is effective in correcting deformities in chronic MFs for ≤35° DIP flexion deformity and <25° PIP recurvatum without DIP joint involvement. In other cases, it is preferable to perform a DIP arthrodesis by combining, if necessary, a complementary procedure to correct the PIP recurvatum.
Level of evidence |
IV, retrospective study.
El texto completo de este artículo está disponible en PDF.Keywords : Chronic mallet finger, Distal interphalangeal joint arthrodesis, Fowler tenotomy, Mallet finger, Swan-neck deformity
Esquema
Vol 109 - N° 3
Artículo 103487- mai 2023 Regresar al número
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