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The Effectiveness of Arthroscopy in Borderline Hip Dysplasia
Author(s):
Cho H. (South Korea (ROK))
Cho H. (South Korea (ROK))
Affiliations:
ESSKA Academy. CHO H. May 9, 2018; 209821; P19-481
Hongman CHO
Hongman CHO
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Abstract
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Objectives: The outcome of hip arthroscopy as a treatment of patients with hip dysplasia is variable. In patients with severe hip dysplasia, arthroscopy has the potential to exacerbate instability and unfavorable outcome. To the best of out knowledge, there has not been a report regarding arthroscopic treatment in patients with borderline hip dysplasia in Korea. We favorable outcome with using arthroscopy to treat symptomatic borderline hip dysplasia.

Methods: Between August 2010 and February 2015, 143 patients undergoing hip arthroscopy for intra-articular hip disorder were retrospectively enrolled. From this cohort, a borderline dysplasia group compromising 29 patient with lateral center edge angle (LCEA)>18° and <25° and a minimum of 1 years follow-up, was identified. Patient-reported outcome scores, including modified Harris hip score, the hip outcome score-activity of daily living, the sport-specific subscale, visual analogue scale (VAS) and satisfaction survey were obtained preoperatively and at postoperative 3 months, 6 months, 1 year, 2 years, and 3 years. Revision surgery and complications were recorded for each group.

Results: The mean age was 35.7 years (range, 16-63 years) years respectively. There were 16 females (55.2%) and 13 males (44.8%). The mean LCEA was 22.0° (range, 18°-25°) and the mean Tönnis angle was 6.1° (range, 0°-18°). The mean follow-up was 20.2 months (range, 12-39 months), and at the 1 year follow-up, there was significant improvement (p<0.001) in all patient reported outcome scores and VAS. Satisfaction survey showed an average score of 7.7.

Conclusions: In patients with borderline hip dysplasia, if there is an occurrence of symptomatic labral tear, arthroscopic labral refixation has a good short-term result. Therefore, if patients have no response to conservative treatment or have severe pain, arthroscopic labral refixation is a useful treatment options to relieve symptom.

Keywords:
borderline hip dysplasia, hip arthroscopy, arthroscopic labral refixation
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