Arthroscopic Treatment of Femoroacetabular Impingement of the Hip: 5-7 Years Result

Chan Kang; Deuk-Soo Hwang; Yoo-Sun Jeon; Sun-Cheol Han; Gi-Soo Lee; Dong-Hun Kang

doi:10.5371/hp.2012.24.3.237

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Kang, Hwang, Jeon, Han, Lee, and Kang: Arthroscopic Treatment of Femoroacetabular Impingement of the Hip: 5-7 Years Result

Original Article

Hip & Pelvis

Hip & Pelvis 2012; 24(3): 237-244.

Published online: 30 September 2012

DOI: https://doi.org/10.5371/hp.2012.24.3.237

Arthroscopic Treatment of Femoroacetabular Impingement of the Hip: 5-7 Years Result

Chan Kang, MD, Deuk-Soo Hwang, MD, Yoo-Sun Jeon, MD, Sun-Cheol Han, MD, Gi-Soo Lee, MD, Dong-Hun Kang, MD

Department of Orthopaedic Surgery, Research Institute for Medical Science, Chungnam National University School of Medicine, Daejeon, Korea.

Address reprint request to Deuk-Soo Hwang, MD. Department of Orthopedic Surgery, Research Institute for Medical Science, Chungnam National University School of Medicine, 33 Munwha-ro, Jung-gu, Daejeon 301-721, Korea. TEL: +82-42-280-7350, FAX: +82-42-252-7098, dshwang@cnu.ac.kr

Received 21 April 2012 Revised 25 July 2012 Accepted 26 July 2012

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

To report the mid- and long-term follow up results of patients who underwent arthroscopic treatment after being diagnosed with femoroacetabular impingement.

Materials and Methods

72 consecutive patients diagnosed with femoroacetabular impingement underwent arthroscopic partial labrectomy and femoroplasty(79 cases). In order to evaluate the clinical results, a modified Harris hip score, and VAS and Hip outcome scores were utilized. In addition, the alpha angle and femoral offset were measured radiologically.

Results

Based on the clinical results from all consecutive patients, the preoperative mean pain score was 6.0 and 1.7, and 2.1 points on the mid-(2-5 years) and long-term(5-7 years) follow ups, respectively. The mean modified Harris hip score improved from 58.9 points to 81.9 and 79.3 points for the mid-term and long-term follow up groups, respectively. Prior to surgery, the daily activity scale and motor scale results associated with Hip outcome scores were 59.2 and 57.5 points for the mid- and long-term groups, respectively. These scores improved to 84.7 and 84.5, and 81.2 and 79.5 for each group upon the mid- and long-term postoperative follow ups, respectively. Based on the radiological results, the mean alpha angle decreased from 61.2° preoperatively to 40.9° after surgery, and the mean femoral offset increased from 4.8 mm to 10.0 mm.

Conclusion

The mid- and long-term clinical and radiological follow ups to evaluate the results of arthroscopic treatment of femoroacetabular impingement revealed satisfactory improvement. This finding further demonstrates that arthroscopy is an effective and safe treatment for cases of femoroacetabular impingement.

Keywords: Femoroacetabular impingement, Labrum, Arthroscopy

Figures and Tables

Fig. 1

33 year-old male with cam type FAI. (A) Preoperative computed tomography shows a bump on the head and neck junction. (B) Postoperative computed tomography shows removed bump after femoroplasty. (C) Arthroscopic findings.

Fig. 2

Patient with persistent hip pain after first arthroscopic operation. (A) 1st arthroscopic images showed labral tear, so, we have performed labrectomy. (B) 2nd arthroscopic images showed labro-synovial adhesion.

Table 1

ROM of Hip Joint in Patients with FAI

Table 2

Clinical Results of FAI Patients

^*P-value between preoperative and postoperative 2-5 years score.

^†P-value between preoperative and postoperative 5-7 years score.

Table 3

Radiologic Results of FAI Patients

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