EP6.74 High Prevalence of Elevated Beighton Scores in Females Undergoing FAI Surgery

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Abstract Background: The role of generalized joint hypermobility (GJH) in the setting of femoroacetabular impingement (FAI) and how it affects clinical presentation has begun to be investigated. It is possible that GJH and hip instability are contributors to the symptoms in this population. Elevated Beighton scores represent GJH. The study purpose was to investigate GJH prevalence in patients with symptomatic FAI and correlate this with complaints of pain, mobility, or stability. Methods: A prospective multicenter study of FAI patients undergoing primary hip arthroscopy was reviewed. Inclusion criteria were patients aged 14-45 years with idiopathic FAI. Exclusion criteria were previous ipsilateral hip procedures, associated disorders, or Tönnis 2+ osteoarthritis. Beighton ≥4 was considered a marker of GJH. Patients recorded whether their primary and secondary complaint was pain, mobility, or instability. Chi-squared or Fisher’s Exact test were utilized to compare groups. Results: The study included 665 patients with mean age of 24.9±7.8 years and 55.8% being female. The GJH (Beighton ≥4) was 56.9% in females and 28.6% in males (p<0.001). In females, 43.9%, 22.4%, and 7.0% had Beighton of 5+, 7+, and 9 respectively, compared to 16.3%, 5.4%, and 1.7% in males (p<0.001). Overall, pain was the primary complaint in 71.6 % of patients, compared to 24.2% complaining primarily of issues of mobility and 4.2% complaining primarily of issues with stability. Among females, the presence of GJH did not influence primary complaints with pain being the predominant symptom in 73.2% of females with Beighton 4+, compared to 70.3% of females with Beighton score under 4 (p=0.402). Overall, 18.0% had stability as primary or secondary complaint. This was unchanged for females (17.8%) and males (18.4%) (p=0.844). GJH had no effect either for Beighton ≥4 (19.3%) and Beighton <4 (17.0%) (p=0.445). Conclusions: Over half of female patients undergoing FAI surgery have underlying GJH as measured by the Beighton score. Even in the setting of females with GJH, primary complaint remains pain, followed by mobility then instability. Further research is needed to better understand the role of generalized joint hypermobility in the pathophysiology of FAI and the outcomes of surgical treatment.

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