TY - JOUR
T1 - Effect of Lateral Gutter Osteophyte Resection on Correction of Varus Deformity in Arthroscopic Ankle Arthrodesis
AU - Saiga, Kenta
AU - Yokoo, Suguru
AU - Ohashi, Hideki
AU - Horita, Masahiro
AU - Furumatsu, Takayuki
AU - Ozaki, Toshifumi
N1 - Publisher Copyright:
© The Author(s) 2020.
PY - 2020/6/1
Y1 - 2020/6/1
N2 - Background: Recently, arthroscopic ankle arthrodesis has been performed for moderate-to-severe varus-deformed ankle osteoarthritis. However, the effect of osteophyte resection in the lateral gutter in arthroscopic ankle arthrodesis has not been clarified. We hypothesized that a varus-deviated ankle with lateral gutter osteophytes can be corrected by osteophyte resection. Methods: Thirty-nine ankles of 38 patients were included. The mean age of patients was 70.0 (45-83) years. The patients were divided into the following groups: group with an osteophyte in the lateral gutter (osteophyte) and group with no osteophytes (nonosteophyte). Preoperative and postoperative tibiotalar angle, tibial plafond angle, and tibiotalar angle under valgus stress, as well as the Japanese Society for Surgery of the Foot (JSSF) ankle/hindfoot scale, were recorded. Twelve ankles underwent lateral gutter osteophyte resection, whereas the other 27 ankles did not require osteophyte resection. Results: Preoperative tibiotalar angle was higher in the osteophyte group than in the nonosteophyte group (21.8 vs 11.2 degrees, P =.01). The tibiotalar angle in the preoperative valgus stress imaging was higher in the osteophyte group (12.9 vs 5.7, P <.01). However, the postoperative tibiotalar angle was similar between the 2 groups (7.1 vs 5.4, P =.183). JSSF ankle/hindfoot scale improved in both groups. Conclusion: Lateral gutter osteophyte resection enabled correction of the varus malalignment in arthroscopic ankle arthrodesis. Level of Evidence: Level III, retrospective comparative series.
AB - Background: Recently, arthroscopic ankle arthrodesis has been performed for moderate-to-severe varus-deformed ankle osteoarthritis. However, the effect of osteophyte resection in the lateral gutter in arthroscopic ankle arthrodesis has not been clarified. We hypothesized that a varus-deviated ankle with lateral gutter osteophytes can be corrected by osteophyte resection. Methods: Thirty-nine ankles of 38 patients were included. The mean age of patients was 70.0 (45-83) years. The patients were divided into the following groups: group with an osteophyte in the lateral gutter (osteophyte) and group with no osteophytes (nonosteophyte). Preoperative and postoperative tibiotalar angle, tibial plafond angle, and tibiotalar angle under valgus stress, as well as the Japanese Society for Surgery of the Foot (JSSF) ankle/hindfoot scale, were recorded. Twelve ankles underwent lateral gutter osteophyte resection, whereas the other 27 ankles did not require osteophyte resection. Results: Preoperative tibiotalar angle was higher in the osteophyte group than in the nonosteophyte group (21.8 vs 11.2 degrees, P =.01). The tibiotalar angle in the preoperative valgus stress imaging was higher in the osteophyte group (12.9 vs 5.7, P <.01). However, the postoperative tibiotalar angle was similar between the 2 groups (7.1 vs 5.4, P =.183). JSSF ankle/hindfoot scale improved in both groups. Conclusion: Lateral gutter osteophyte resection enabled correction of the varus malalignment in arthroscopic ankle arthrodesis. Level of Evidence: Level III, retrospective comparative series.
KW - arthroscopic ankle arthrodesis
KW - lateral gutter osteophyte
KW - stress radiograph
KW - tibiotalar angle
KW - varus deformity
UR - http://www.scopus.com/inward/record.url?scp=85081740249&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85081740249&partnerID=8YFLogxK
U2 - 10.1177/1071100720910388
DO - 10.1177/1071100720910388
M3 - Article
C2 - 32131624
AN - SCOPUS:85081740249
VL - 41
SP - 683
EP - 688
JO - Foot and Ankle International
JF - Foot and Ankle International
SN - 1071-1007
IS - 6
ER -