title: [Management of sheath after repair of double tendons in zone II d].
abstract: OBJECTIVE
  To evaluate the management of sheath after repair of double tendons in clean-cut injury or severe injury in zone II d.
  
  
  METHODS
  Forty-eight white leghorn chickens were divided into 4 groups. Both FDS and FDP tendons in zone II d of long toes were repaired with modified Kessler suture after tendon transection in group A (clean-cut tendon injury, sheath closure), group B (clean-cut tendon injury, sheath excision), group C (severe tendon injury, sheath closure) and group D (severe tendon injury, sheath excision), respectively. Biomechanical studies of gliding excursion and work of flexion were carried out 6 weeks and 12 weeks after tendon repair. The extent of adhesion was examined.
  
  
  RESULTS
  After 6 and 12 weeks of repair, there were no significant differences in tendon excursion and work of flexion of the toes between groups A and B. Excursions of FDP tendons in group D was significantly larger than that in group C (P < 0.05). Work of flexion and extent of adhesion in group D was significantly less than that in group C (P < 0.05).
  
  
  CONCLUSIONS
  The above results indicate that sheath can be closed after repair of both FDS and FDP tendons in clean-cut injury and that sheath should be excised in severe injury in zone II d.
authors.affiliation: Hand Surgery Center, Department of Orthopedics, Affiliated Hospital, Nantong Medical College, Nantong Jiangsu, P.R. China 226001.
authors.forename: Yu-tong
authors.initials: YT
authors.lastname: Gu
authors.forename: Jin-bo
authors.initials: JB
authors.lastname: Tang
authors.forename: Ren-guo
authors.initials: RG
authors.lastname: Xie
authors.forename: Yan
authors.initials: Y
authors.lastname: Xu
authors.forename: Xiao-wei
authors.initials: XW
authors.lastname: Yu
authors.forename: Feng
authors.initials: F
authors.lastname: Chen
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D002645:Chickens; D005260:Female; D013708:Tendon Injuries / Q000601:surgery*; D013710:Tendons / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome