Improvements in Sleep Quality Are Maintained at a Minimum of 2 Years Following Hip Arthroscopy for Femoroacetabular Impingement Syndrome.

ABSTRACT

PURPOSE: To present the results of a mid-term follow-up study on sleep quality at a minimum of 2 years after hip arthroscopy for femoroacetabular impingement syndrome. METHODS: Original inclusion criteria were consecutive patients undergoing primary hip arthroscopy for cam/pincer correction between March 1, 2017, and July 1, 2017, who did not respond to nonoperative management, whereas exclusion criteria were revision arthroscopy, gluteus medius repair, contralateral procedure during the follow-up period, and known sleep disorders. Patients who had followed up at 6 months were contacted at a minimum of 2 years following their surgery. In total, 37 of 55 (67.3%) were available for follow-up. New Pittsburgh Sleep Quality Index (PSQI) scores were obtained and compared with previously reported scores at preoperative and 6-month time points. The PSQI ranges from 0 to 21, with a score of ≥5 indicating poor sleep quality. Point biserial correlations and χ2 tests of associations were used to investigate associations between demographics, preoperative patient-reported outcome measures, and the incidence of poor sleep quality at 2 years postoperatively. RESULTS: Preoperatively, 94.5% of patients (52/55) had a PSQI of ≥5 with a mean PSQI score of 9.8 ± 4.2. Statistically significant improvements were observed at both 6 (PSQI 2.2 ± 0.2, P < .001) and 24 months (PSQI 4.3 ± 3.9) postoperatively compared to baseline (P < .001, both). The mean PSQIs at 2 years and 6 months postoperatively were not statistically different (P = .06). A total of 21.7% (10/46) of patients continued to experience poor sleep quality at 6 months postoperatively, whereas a total of 29.7% (11/37) did so at 2 years postoperatively (P = .36). No preoperative factors were associated with poor sleep quality (P > .05 all). CONCLUSIONS: The early improvements in sleep quality observed 6 months postoperatively from an original small cohort were maintained at a mean 2.8-year follow-up in those who responded. However, approximately 30% of hip arthroscopy patients still experience poor sleep quality. LEVEL OF EVIDENCE IV, therapeutic case series.