title: The effect of platelet-rich plasma on arthroscopic double-row rotator cuff repair: a clinical study with 12-month follow-up.
abstract: OBJECTIVE
  The aim of the study was to assess the effect of platelet-rich plasma on arthroscopic double-row rotator cuff repair.
  
  
  METHODS
  The study included 60 patients with arthroscopic rotator cuff repair. Thirthy patients (mean age: 57.2±7.4; 16 males and 14 females) underwent arthroscopic double-row repair alone (Group 1), another 30 (mean age: 56.9±6.0; 15 males and 15 females) had an injection of platelet-rich plasma (PRP) (Group 2). The groups were compared with DASH as a primary outcome score and Constant-Murley score, visual analog scale, measurement of active forward flexion, and external and internal rotation as secondary outcome measures. Magnetic resonance imaging was used to assess the integrity of the repair at 12 months postoperatively.
  
  
  RESULTS
  Primary and secondary outcome measures statistically improved in both groups postoperatively (p<0.05). Overall mean primary and secondary postoperative outcome measures were not significantly different between the 2 groups. A retear was seen in 9 subjects (30%) in Group 1 and 4 subjects (14%) in Group 2 (p<0.05).
  
  
  CONCLUSIONS
  The local injection of PRP into a primary arthroscopic double-row cuff repair resulted in lower recurrence rates than repairs without the novel biological augmentation material.
authors.affiliation: The Affiliated Taizhou People's Hospital of Nantong University, Department of Orthoapedics and Traumatology, Taizhou, China. kafeimao1982@126.com.
authors.forename: Zhenxiang
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: The First Affiliated Hospital of Soochow University, Department of Orthopaedics and Traumatology, Suzhou, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: The First Affiliated Hospital of Soochow University, Department of Orthopaedics and Traumatology, Suzhou, China.
authors.forename: Junying
authors.initials: J
authors.lastname: Sun
mesh_terms: D000328:Adult; D000368:Aged; D001182:Arthroscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007267:Injections; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D053657:Platelet-Rich Plasma; D016059:Range of Motion, Articular; D012008:Recurrence; D000070636:Rotator Cuff Injuries / Q000000981:diagnostic imaging / Q000628:therapy*; D012785:Shoulder Joint / Q000601:surgery*; D016896:Treatment Outcome; D014945:Wound Healing