title: Clinical outcomes of operative repair of complete rupture of the proximal interphalangeal joint collateral ligament: Comparison with non-operative treatment.
abstract: OBJECTIVE
  The purpose of this study was to compare the outcomes of non-operative treatment and operative repair of grade III injuries with complete rupture of the collateral ligament of the proximal interphalangeal (PIP) joint.
  
  
  METHODS
  Seventeen patients with grade III injuries with at least 6 months of follow-up were included. Seven patients underwent non-operative treatment and 10 patients underwent operative treatment. We evaluated the following clinical outcomes after treatment: 1) range of motion of the PIP and distal interphalangeal (DIP) joints, 2) joint stability, 3) pain score, and 4) amount of fusiform deformity of the PIP joint.
  
  
  RESULTS
  There was no instability in the lateral stress test in either group. The ranges of motion of the PIP and DIP joints were not statistically different between the two groups at final follow-up. However, the ranges of motion recovered more quickly in the operative group than the non-operative group within the first 3 months after treatment. Patients in the operative group had less pain and better cosmetic appearance of the PIP joint.
  
  
  CONCLUSIONS
  Our results suggest that operative repair of the PIP collateral ligament can provide good joint stability, rapid functional recovery, and minimize fusiform deformity of the PIP joint.
  
  
  METHODS
  Level III, Therapeutic study.
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Konkuk University Medical Center, Seoul, South Korea.
authors.forename: Seoung Joon
authors.initials: SJ
authors.lastname: Lee
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Konkuk University Medical Center, Seoul, South Korea.
authors.forename: Jun Hee
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Konkuk University Medical Center, Seoul, South Korea.
authors.forename: In Cheul
authors.initials: IC
authors.lastname: Hwang
authors.affiliation: Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea.
authors.forename: Joon Kuk
authors.initials: JK
authors.lastname: Kim
authors.affiliation: Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea. Electronic address: osjungil@gmail.com.
authors.forename: Jung Il
authors.initials: JI
authors.lastname: Lee
mesh_terms: D000328:Adult; D017885:Collateral Ligaments / Q000000981:diagnostic imaging / Q000293:injuries / Q000601:surgery; D000072700:Conservative Treatment / Q000009:adverse effects / Q000379:methods; D005260:Female; D005383:Finger Injuries / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D005384:Finger Joint / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D016916:Joint Deformities, Acquired / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control; D007593:Joint Instability / Q000175:diagnosis / Q000209:etiology; D008297:Male; D019637:Orthopedic Procedures / Q000009:adverse effects / Q000379:methods; D010043:Outcome and Process Assessment, Health Care; D010146:Pain / Q000175:diagnosis / Q000209:etiology; D010147:Pain Measurement / Q000379:methods; D011859:Radiography / Q000379:methods; D016059:Range of Motion, Articular; D020127:Recovery of Function; D056910:Republic of Korea; D012189:Retrospective Studies; D015599:Trauma Severity Indices
keywords: PIP collateral ligament; Proximal interphalangeal joint; Surgical repair; Suture anchor; dislocation