Clin Orthop Surg.  2018 Dec;10(4):393-397. 10.4055/cios.2018.10.4.393.

Remaining Loose Bodies after Arthroscopic Surgery Including Extensive Capsulectomy for Synovial Chondromatosis of the Hip

• Lee YK
• Moon KH
• Kim JW
• Hwang JS
• Ha YC
• Koo KH

• KMID: 2426522
• DOI: http://doi.org/10.4055/cios.2018.10.4.393

Abstract

BACKGROUND
The purpose of our study was to evaluate the usefulness of hip arthroscopy including extensive capsulectomy for synovial chondromatosis of the hip.
METHODS
From 2008 to 2016, 13 patients with synovial chondromatosis of the hip were treated with arthroscopic removal of loose bodies and synovectomy using three arthroscopic portals. An extensive capsulectomy was performed to allow the remaining loose bodies to be out of the extracapsular space, and the excised capsule was not repaired. All patients were assessed by clinical scores and the radiographs were reviewed to determine whether the remaining loose bodies disappeared at the last follow-up.
RESULTS
Eight men and two women were followed up for a minimum of 1 year (mean, 3.8 years; range, 1 to 6.8 years) after hip arthroscopy. Clinical outcomes such as modified Harris hip score, University of California Los Angeles score, and Western Ontario and McMaster Universities Osteoarthritis Index score improved at the last follow-up. Although seven hips had remaining loose bodies after arthroscopic surgery, the remaining loose bodies disappeared in five hips (71.4%) at the last follow-up.
CONCLUSIONS
Arthroscopic surgery was useful to treat synovial chondromatosis of the hip. In spite of limited removal of loose bodies, arthroscopic procedures including extensive capsulectomy could be effective for the treatment of synovial chondromatosis of the hip.

Keyword

Arthroscopy; Hip; Loose body; Synovial chondromatosis

MeSH Terms

Arthroscopy*
California
Chondromatosis, Synovial*
Female
Follow-Up Studies
Hip*
Humans
Male
Ontario
Osteoarthritis

Figure

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  Fig. 1 (A) The preoperative radiograph of a 23-year-old male showed characteristic numerous intra-articular radiopaque bodies in the right hip which was compatible with synovial chondromatosis of the hip. (B) Photograph of removed loose bodies. (C) The immediate postoperative radiograph showed the presence of remaining loose bodies in the medial area of the hip joint. (D) The radiograph taken 6 years after hip arthroscopy including extensive capsulectomy showed that the remaining loose bodies noted on the immediate postoperative radiograph disappeared.

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