TY - JOUR

T1 - Good midterm results of hip arthroscopy for femoroacetabular impingement

AU - Kaldau, Niels Christian

AU - Brorson, Stig

AU - Hölmich, Per

AU - Lund, Bent

N1 - Articles published in the DMJ are “open access”. This means that the articles are distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits any non-commercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

PY - 2018

Y1 - 2018

N2 - INTRODUCTION: Short-term outcome after hip arthroscopy for femoroacetabular impingement (FAI) has been reported to improve hip function and decrease pain. Only few midterm and long-term studies have been published. The objective of this study was to report midterm results in a consecutive cohort and to study the relation between cartilage lesions and the conversion rate to total hip arthroplasty (THA).METHODS: Eighty-four FAI patients were followed retrospectively for 6-8 years. The conversion rate to THA, the peri-operative findings and the patient-reported outcome measures were reported.RESULTS: Fifteen of 84 (18%) patients were converted to THA. The five-year hip survival rate was 83.9% (confidence interval (CI): 75.1-91.5%). The THA group was significantly older, with a mean age of 46.9 years (CI: 42.8-50.8 years) compared with 39.0 years (CI: 36.6-41.6 years) in the non-THA group (p = 0.011). In the THA group, 13 of 15 patients were 40 years or older (p = 0.005). A high-grade acetabular or femoral cartilage lesion was associated with a higher risk of conversion to THA (p = 0.017 and p < 0.0001). Sixty-four of the 69 patients (93%) were willing to repeat their arthroscopy.CONCLUSIONS: The midterm results for arthroscopic hip-preserving surgery show a high level of patient satisfaction and a good functional outcome. The conversion rate to THA was 18%. High-grade cartilage lesions and age of 40 years and older are risk factors for conversion to THA.FUNDING: This work was supported by Aleris' Research Foundation, Box 47134, 100 74 Stockholm, Sweden. Registration number: 2014-24.TRIAL REGISTRATION: not relevant. .

AB - INTRODUCTION: Short-term outcome after hip arthroscopy for femoroacetabular impingement (FAI) has been reported to improve hip function and decrease pain. Only few midterm and long-term studies have been published. The objective of this study was to report midterm results in a consecutive cohort and to study the relation between cartilage lesions and the conversion rate to total hip arthroplasty (THA).METHODS: Eighty-four FAI patients were followed retrospectively for 6-8 years. The conversion rate to THA, the peri-operative findings and the patient-reported outcome measures were reported.RESULTS: Fifteen of 84 (18%) patients were converted to THA. The five-year hip survival rate was 83.9% (confidence interval (CI): 75.1-91.5%). The THA group was significantly older, with a mean age of 46.9 years (CI: 42.8-50.8 years) compared with 39.0 years (CI: 36.6-41.6 years) in the non-THA group (p = 0.011). In the THA group, 13 of 15 patients were 40 years or older (p = 0.005). A high-grade acetabular or femoral cartilage lesion was associated with a higher risk of conversion to THA (p = 0.017 and p < 0.0001). Sixty-four of the 69 patients (93%) were willing to repeat their arthroscopy.CONCLUSIONS: The midterm results for arthroscopic hip-preserving surgery show a high level of patient satisfaction and a good functional outcome. The conversion rate to THA was 18%. High-grade cartilage lesions and age of 40 years and older are risk factors for conversion to THA.FUNDING: This work was supported by Aleris' Research Foundation, Box 47134, 100 74 Stockholm, Sweden. Registration number: 2014-24.TRIAL REGISTRATION: not relevant. .

KW - Acetabulum/injuries

KW - Adult

KW - Age Factors

KW - Arthroplasty, Replacement, Hip

KW - Arthroscopy

KW - Female

KW - Femoracetabular Impingement/surgery

KW - Femur/injuries

KW - Hip Joint/diagnostic imaging

KW - Humans

KW - Kaplan-Meier Estimate

KW - Male

KW - Middle Aged

KW - Patient Satisfaction

KW - Radiography

KW - Recovery of Function

KW - Reoperation

KW - Retrospective Studies

KW - Sex Factors

KW - Sweden

KW - Treatment Outcome

M3 - Journal article

C2 - 29886878

VL - 65

JO - Danish Medical Journal

JF - Danish Medical Journal

SN - 2245-1919

IS - 6

M1 - A5483

ER -