ORIGINAL ARTICLE
The therapeutic outcome of minimally invasive synovectomy assisted with arthroscopy in the rheumatoid knee
Authors
Hiroyasu Ogawa1, Mansho Itokazu2, Yoshiki Ito2, Masashi Fukuta3 and Katsuji Shimizu
| (1) |
Department of Orthopaedic Surgery, Hikone Municipal Hospital, 1882 Hassaka, Hikone, Shiga 522-0057, Japan |
| (2) |
Department of Orthopaedic Surgery, Gifu University School of Medicine, Gifu, Japan |
| (3) |
Department of Orthopaedic Surgery, Toyosato Hospital, Shiga, Japan |
Received:
August 24, 2006
Accepted:
May 17, 2006
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Abstract
The purpose of the present study was to retrospectively evaluate the therapeutic outcome of minimally invasive synovectomy assisted with arthroscopy (MISAA). From 1995 to 2003, MISAA was performed on 30 knees of 18 rheumatoid arthritis patients. The mean follow-up period was 74.4 months. Radiographic assessment according to Larsen’s radiological classification, the conversion ratio to total knee arthroplasty (TKA), and postoperative change of the range of flexion were evaluated retrospectively. There were 10 knees in grade I, 14 knees in grade II, and 6 knees in grade III, preoperatively. All the knees in grade I and 8 of 14 knees in grade II maintained the same grade until the latest follow-up. The other 6 knees in grade II and all the knees in grade III deteriorated to grade IV and were converted to TKA after MISAA. The mean range of flexion significantly increased postoperatively except the knees that were converted to TKA. MISAA is effective for rheumatoid knees in grade I or II, and improves range of flexion.
Key words
Knee, Minimally invasive surgery, Rheumatoid arthritis, Synovectomy
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