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J Hand Surg Am. 2014 Jun;39(6):1063-7. doi: 10.1016/j.jhsa.2014.03.004. Epub 2014 Apr 29.

Total dorsal capsulectomy for the treatment of mucous cysts.

Author information

  • 1Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan. Electronic address: kkanaya@pop06.odn.ne.jp.
  • 2Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Hokkaido, Japan.

Abstract

PURPOSE:

To describe the technique of total dorsal capsulectomy alone for mucous cysts of the distal interphalangeal (DIP) joint and evaluate its outcomes and complications.

METHODS:

Nineteen patients (18 women and 1 man) with 19 mucous cysts were treated by a total dorsal capsulectomy without cyst excision or osteophyte removal. The average age at surgery was 63 years. The thumb was involved in 4 patients, index finger in 1, middle finger in 7, ring finger in 4, and little finger in 3. Twelve patients had nail deformities associated with the mucous cyst. The average period of postoperative follow-up was 26 months. The dorsal half of the DIP joint capsule was resected with a punch and curette. The cyst and osteophytes were left intact.

RESULTS:

The average preoperative range of motion for the DIP joint was from 10° of extension to 45° of flexion. Radiographs showed osteophytes at the DIP joint in all affected digits. After surgery, all cysts disappeared at an average of 3 weeks. There was no recurrence at the time of final follow-up. All nail deformities had resolved at an average of 5 months after surgery. The average motion for the DIP joint at the time of final follow-up was from 8° of extension to 56° of flexion. There were no acquired nail deformities or other complications.

CONCLUSIONS:

A total dorsal capsulectomy alone was a simple treatment for mucous cysts and did not lead to any recurrence.

TYPE OF STUDY/LEVEL OF EVIDENCE:

Therapeutic IV.

Copyright © 2014 American Society for Surgery of the Hand. Published by Elsevier Inc. All rights reserved.

KEYWORDS:

Digit; capsulectomy; mucous cyst

PMID:
24785701
[PubMed - indexed for MEDLINE]
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