title: Hip muscle strength recovery after hip arthroscopy in a series of patients with symptomatic femoroacetabular impingement.
abstract: OBJECTIVE
  The aim of the study was to prospectively evaluate hip muscle strength in a series of patients with symptomatic FAI after hip arthroscopy.
  
  
  METHODS
  Hip muscle strength of eight patients (age: 29 ± 10 years) was evaluated preoperatively and 2.5 years after hip arthroscopy, and was compared to eight matched controls. Maximal voluntary contraction (MVC) strength was measured for all hip muscle groups. At follow-up, we used the symptom-specific well-being outcome to assess the acceptability of the health state related to the hip.
  
  
  RESULTS
  Patients showed MVC strength increases for all hip muscles (9-59%, P<.05). At follow-up, only hip flexor MVC strength was lower for patients than controls (-18%, P<.05). At follow-up, four patients (out of eight) were "neither satisfied nor dissatisfied" with the health state of their operated hip.
  
  
  CONCLUSIONS
  Patients with symptomatic FAI recovered their hip muscle strength to normal levels 2.5 years after hip arthroscopy, except for hip flexors. Although all patients showed good hip muscle strength at follow-up, half of them were not completely satisfied with their health state related to the hip.
authors.affiliation: 2 INSERM U1093 - Cognition, Action and Sensory Plasticity, University of Burgundy, Dijon - France.
authors.forename: Nicola C
authors.initials: NC
authors.lastname: Casartelli
authors.forename: Nicola A
authors.initials: NA
authors.lastname: Maffiuletti
authors.forename: Julia F
authors.initials: JF
authors.lastname: Item-Glatthorn
authors.forename: Franco M
authors.initials: FM
authors.lastname: Impellizzeri
authors.forename: Michael
authors.initials: M
authors.lastname: Leunig
mesh_terms: D000328:Adult; D001182:Arthroscopy; D005260:Female; D057925:Femoracetabular Impingement / Q000503:physiopathology / Q000601:surgery*; D005500:Follow-Up Studies; D006621:Hip Joint / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D018482:Muscle, Skeletal / Q000503:physiopathology*; D011184:Postoperative Period; D016059:Range of Motion, Articular / Q000502:physiology*; D020127:Recovery of Function; D013997:Time Factors; D016896:Treatment Outcome