title: Arthroscopic partial trapeziectomy and tendon interposition for thumb carpometacarpal arthritis.
abstract: BACKGROUND
  The purpose of this study was to introduce arthroscopic partial trapeziectomy and tendon interposition for the treatment of symptomatic thumb carpometacarpal arthritis of Eaton stage II or III.
  
  
  METHODS
  From August 2001 to April 2009, 23 patients with thumb carpometacarpal arthritis were treated using this technique. Pain score, range of motion, and pinch strength were clinically evaluated and compared with the preoperative values after a minimum follow-up duration of 24 months.
  
  
  RESULTS
  Significant reduction in pain score and increases in range of motion and pinch strength were found (all p < 0.001) after a 2-year follow-up. The mean ± SD (median) postoperative pain score was 1.0 ± 0.7 (1.0) at rest and 1.3 ± 0.9 (1.0) during daily activities. The postoperative range of motion was 19.1° ± 4.2° (20°) for extension and 35.7° ± 7.1° (35.0°) for flexion, and the postoperative pinch strength was 86.5 % ± 19.9 % (90.0 %). No complications were observed in our patient series.
  
  
  CONCLUSIONS
  Arthroscopic partial trapeziectomy and soft tissue interposition could be an alternative treatment method for patients with symptomatic thumb carpometacarpal arthritis of Eaton stage II or III.
authors.affiliation: Department of Orthopaedic Surgery, MacKay Memorial Hospital, No. 92 Sec. 2 Zhongshan N. Rd., Taipei City, Taiwan.
authors.forename: Min-Yao
authors.initials: MY
authors.lastname: Chuang
authors.affiliation: Department of Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan.|Department of Dentistry, National Yang-Ming University, No. 155 Sec. 2 Linong St, Taipei City, Taiwan.
authors.forename: Chang-Hung
authors.initials: CH
authors.lastname: Huang
authors.affiliation: Department of Orthopaedic Surgery, MacKay Memorial Hospital, No. 92 Sec. 2 Zhongshan N. Rd., Taipei City, Taiwan. yungchanglu@hotmail.com.|Department of Medical Research, MacKay Memorial Hospital, New Taipei City, Taiwan. yungchanglu@hotmail.com.|Department of Cosmetic Application and Management, MacKay Junior College of Medicine, Nursing, and Management, No. 92 Shengjing Rd, Taipei City, Taiwan. yungchanglu@hotmail.com.
authors.forename: Yung-Chang
authors.initials: YC
authors.lastname: Lu
authors.affiliation: Department of Orthopaedic Surgery, Taoyuan Armed Forces General Hospital, No. 168 Zhongxing Rd, Longtan District, Taoyuan City, Taiwan. jui_tien_shih@hotmail.com.
authors.forename: Jui-Tien
authors.initials: JT
authors.lastname: Shih
mesh_terms: D000368:Aged; D001182:Arthroscopy / Q000379:methods*; D052737:Carpometacarpal Joints / Q000473:pathology / Q000601:surgery*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000175:diagnosis / Q000601:surgery*; D013710:Tendons / Q000473:pathology / Q000601:surgery*; D013933:Thumb / Q000473:pathology / Q000601:surgery*