TY  - JOUR
TI  - Extension block pinning in subacute/late bony mallet finger injuries
AB  - Objective: Mallet finger is inability to fully extend a finger due to the disruption of the extensor mechanism integrity at the
distal interphalangeal (DIP) joint level. Cases with DIP joint subluxation, and avulsion fractures involving more than 30%
of the DIP joint surface are candidates for surgery. Subacute/late cases have poor outcomes. Investigating the success of
extension block pinning in subacute/late bony mallet finger cases is aimed.
Methods: Patient demographics, the rate of DIP joint involvement in plain X-rays, subluxation status of DIP joint, the time
between injury and operation, the duration of the operation, complications in post-operative follow-up, extensor lag and healing
status of bone were reviewed. Patient outcomes and relation with operative delay and joint subluxation were analyzed.
Results: Mean rate of DIP joint involvement of study group was 43.4 ± 6.12%. Half of the study group (n=7) had DIP joint
subluxation. Mean time from injury to operation was 29.78±20.4 days. Six patients’ time from injury to operation was longer
than 5 weeks. Study group had statistically significant improvement after surgery. Preoperative mean extensor lag was
15.71° ± 7.30° and postoperative mean extensor lag was 5.57° ± 8.89°(p<0.001). At long term follow-up, technique has proven
to be successful (excellent+good) in 78.5% of patients. Operating in late period (>5 weeks) and presence of subluxation
did not alter the outcome (p=0.353 and p=0.149, respectively).
Conclusion: Extension block pinning technique is a fast, easy-to-apply technique with minimal morbidity. Although it has
more limited results in chronic cases, it can be used safely in the majority of cases requiring surgery.
AU  - GURSOY, Koray
AU  - ARSLAN, RAMAZAN
AU  - KARA, MURAT
AU  - USTUN, Galip Gencay
AU  - KOCER, Ugur
DO  - 10.5455/handmicrosurg.117030
PY  - 2020
JO  - Hand and Microsurgery
VL  - 9
IS  - 3
SN  - 2458-7834
SP  - 146
EP  - 152
DB  - TRDizin
UR  - http://search/yayin/detay/509107
ER  -