PURPOSE: The purpose of this study was to evaluate the midterm outcomes of patients with cam-type femoroacetabular impingement treated arthroscopically. METHODS: Outcomes were measured with the Nonarthritic Hip Score (NAHS), visual analog scale pain scores, and satisfaction levels preoperatively; at 6 weeks and 3, 6, 12, and 24 months postoperatively; and at final follow-up. Two hundred one procedures were available for final assessment with a minimum follow-up of 36 months (mean, 46 months). Ninety-nine percent of hips had a preoperative Tönnis grade of 1 or less. RESULTS: The NAHS significantly improved from a mean of 56.1 to 78.2 (P < .001). Visual analog scale pain scores improved from a mean of 6.8 to 2.7 (P < .001). Preoperative to postoperative satisfaction levels improved from 0.5% to 75% of procedures. Twelve patients required hip arthroplasty during the follow-up period and had a higher incidence of grade 4 acetabular chondral defects versus those without arthroplasty (P < .03). Patients with pincer resections had significantly poorer results versus the remainder of the cohort (P < .01). CONCLUSIONS: We have shown satisfactory results using a validated hip scoring system, showing improvement in NAHS, pain scores, and satisfaction levels in a large cohort of patients with cam-type femoroacetabular impingement followed up for a mean of 46 months. The results have shown improvement and stability throughout a range of 36 to 70 months' follow-up. There was no difference in preoperative to postoperative NAHS between age groups. There was a larger percentage of grade 4 acetabular chondral defects in those patients who needed conversion to hip arthroplasty. Patients with associated pincer pathology had poorer results after acetabular rim resection. LEVEL OF EVIDENCE: Level IV, therapeutic case series.
PURPOSE: The purpose of this study was to evaluate the midterm outcomes of patients with cam-type femoroacetabular impingement treated arthroscopically. METHODS: Outcomes were measured with the Nonarthritic Hip Score (NAHS), visual analog scale pain scores, and satisfaction levels preoperatively; at 6 weeks and 3, 6, 12, and 24 months postoperatively; and at final follow-up. Two hundred one procedures were available for final assessment with a minimum follow-up of 36 months (mean, 46 months). Ninety-nine percent of hips had a preoperative Tönnis grade of 1 or less. RESULTS: The NAHS significantly improved from a mean of 56.1 to 78.2 (P < .001). Visual analog scale pain scores improved from a mean of 6.8 to 2.7 (P < .001). Preoperative to postoperative satisfaction levels improved from 0.5% to 75% of procedures. Twelve patients required hip arthroplasty during the follow-up period and had a higher incidence of grade 4 acetabular chondral defects versus those without arthroplasty (P < .03). Patients with pincer resections had significantly poorer results versus the remainder of the cohort (P < .01). CONCLUSIONS: We have shown satisfactory results using a validated hip scoring system, showing improvement in NAHS, pain scores, and satisfaction levels in a large cohort of patients with cam-type femoroacetabular impingement followed up for a mean of 46 months. The results have shown improvement and stability throughout a range of 36 to 70 months' follow-up. There was no difference in preoperative to postoperative NAHS between age groups. There was a larger percentage of grade 4 acetabular chondral defects in those patients who needed conversion to hip arthroplasty. Patients with associated pincer pathology had poorer results after acetabular rim resection. LEVEL OF EVIDENCE: Level IV, therapeutic case series.
Authors: Simon D Steppacher; Helen Anwander; Corinne A Zurmühle; Moritz Tannast; Klaus A Siebenrock Journal: Clin Orthop Relat Res Date: 2015-04 Impact factor: 4.176
Authors: Corinne A Zurmühle; Helen Anwander; Christoph E Albers; Markus S Hanke; Simon D Steppacher; Klaus A Siebenrock; Moritz Tannast Journal: Clin Orthop Relat Res Date: 2016-12-05 Impact factor: 4.176
Authors: Simon D Steppacher; Carmen Huemmer; Joseph M Schwab; Moritz Tannast; Klaus A Siebenrock Journal: Clin Orthop Relat Res Date: 2013-09-08 Impact factor: 4.176
Authors: Markus S Hanke; Simon D Steppacher; Helen Anwander; Stefan Werlen; Klaus A Siebenrock; Moritz Tannast Journal: Clin Orthop Relat Res Date: 2017-04 Impact factor: 4.176
Authors: Thomas L Sanders; Patrick Reardon; Bruce A Levy; Aaron J Krych Journal: Knee Surg Sports Traumatol Arthrosc Date: 2016-08-09 Impact factor: 4.342