title: Arthroscopic all-inside repair using the Meniscus Arrow: long-term clinical follow-up of 113 patients.
abstract: OBJECTIVE
  A clinical trial was carried out to investigate the long-term outcome of Meniscus Arrow (Bionx Implants, Blue Bell, PA) repair.
  
  
  METHODS
  In a case series 113 consecutive patients with an arthroscopic all-inside Meniscus Arrow repair were evaluated. The mean age was 30 years, and the mean length of follow-up was 6 years. Of the patients, 84% were available for follow-up. Repairs were performed in either the medial (81%) or lateral (19%) posterior horn in only the red-red or red-white meniscal zone. Concomitant anterior cruciate ligament reconstruction was performed in 66% of patients.
  
  
  RESULTS
  Of the patients, 28% showed a retear of the meniscus and had to undergo arthroscopic revision with partial meniscectomy. Simultaneous anterior cruciate ligament reconstruction had no significant influence on the revision rate. In patients who did not undergo revision, the mean Lysholm score was 91 points and the mean Cincinnati knee score was 93 points. The International Knee Documentation Committee classification was A or B in 90% of patients and C in 10%. At revision surgery, 2 patients showed distinct femoral cartilage damage caused by the head of the Meniscus Arrow.
  
  
  CONCLUSIONS
  The Meniscus Arrow shows a high clinical failure rate of 28.4%, especially given that the use of the device was restricted to tears in the red-red and red-white zone of the meniscus, which would be expected to have a good healing potential. More than 80% of all failures occurred during the first 3 postoperative years, suggesting that the initial refixation potential of the Meniscus Arrow is low. Device-specific complications required additional operative treatment.
  
  
  METHODS
  Level IV, therapeutic case series.
authors.affiliation: Orthopaedic Department, ARCUS Sportklinik, Pforzheim, Germany. rainersiebold@hotmail.com
authors.forename: Rainer
authors.initials: R
authors.lastname: Siebold
authors.forename: Carsten
authors.initials: C
authors.lastname: Dehler
authors.forename: Ludwig
authors.initials: L
authors.lastname: Boes
authors.forename: Andree
authors.initials: A
authors.lastname: Ellermann
mesh_terms: D020341:Absorbable Implants; D000293:Adolescent; D000328:Adult; D001182:Arthroscopy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis / Q000601:surgery*; D008297:Male; D008592:Menisci, Tibial / Q000601:surgery*; D008875:Middle Aged; D010149:Postoperative Pain / Q000503:physiopathology; D011336:Probability; D011446:Prospective Studies; D011475:Prosthesis Failure; D020127:Recovery of Function; D018570:Risk Assessment; D053441:Suture Anchors; D000070600:Tibial Meniscus Injuries; D013997:Time Factors; D016896:Treatment Outcome