Tianxiao M, Wang D, Song L.
Kirner's deformity of the fifth finger: A case report.
Medicine (Baltimore) 2020;
99:e22294. [PMID:
32991433 PMCID:
PMC7523806 DOI:
10.1097/md.0000000000022294]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 08/09/2020] [Accepted: 08/21/2020] [Indexed: 11/26/2022] Open
Abstract
RATIONALE
Kirner's deformity is an uncommon deformity of finger, characterized by palmo-radial curvature of distal phalanx of the fifth finger. The specific mechanism remains unknown yet. This study aims to present a case report to add the knowledge on this type of deformity.
PATIENT CONCERNS
A 9-year-old girl presenting with deformity of her fifth finger since she was born was admitted to our hand surgery clinic. MRI findings showed widened epiphyseal plate, L-shaped physis, but normal flexor digitorum profundus tendon insertion, without any significantly enhanced soft issues.
DIAGNOSIS
Kirner's deformity of the fifth finger.
INTERVENTIONS
We presented 2 surgical choices for the patient: one was wedge osteotomy of the distal phalanx to correct the mechanical line of the distal phalanx and fixation with Kirschner wire and the other one was cut-off of deep flexor tendon insertion with brace immobilization, but her guardians refused either of them.
OUTCOMES
Consecutive follow-up was performed for 19 months after the first visit, showing no any change in finger shape and function.
LESSONS
The L-shaped epiphyses may be the cause of Kirner's deformity and further attention should be paid on in the clinic. This case report provided a basis for the etiological diagnosis and future treatment of Kirner's deformity.
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