title: Which patients are less likely to improve during the first year after arthroscopic partial meniscectomy? A multivariate analysis of 201 patients with prospective follow-up.
abstract: OBJECTIVE
  To determine which specific factors influence the improvements in function and pain at the first year following arthroscopic partial meniscectomy.
  
  
  METHODS
  Between 2012 and 2013, patients who had arthroscopic partial meniscectomy were included (n = 201) and followed prospectively before surgery and at 12 months. Multivariable stepwise analysis included preoperative variables (age, gender, limb side, height, weight, body mass index, comorbidities, smoking, Tegner activity scale, Lysholm knee score, preceding injury and duration of preoperative symptoms) and arthroscopic findings (degree of cartilage lesions, medial or lateral meniscus involvement, type of meniscal tear and concomitant cruciate tear). The Lysholm clinical score at the last follow-up and the time interval for substantial pain relief was modelled as a function of the above predictor variables.
  
  
  RESULTS
  At the last follow-up, the mean Lysholm score improved by 14.6 points (95 % CI 10.4-18.8, P < 0.001), from 68.0 ± 16.1 to 82.6 ± 19.6 points and 153 (76 %) patients declared they were satisfied to have had the operation. The mean time interval for substantial pain relief was 3.5 ± 1.5 months. Females and patients with lower preoperative Lysholm score were correlated with lower post-operative Lysholm score, while females and patients with lateral meniscal tears (compared to medial meniscal tears) were correlated with longer recovery.
  
  
  CONCLUSIONS
  Arthroscopic partial meniscectomy improved pain and function at the first year post-operatively. Female gender, lateral meniscal tear and less favourable preoperative function were relatively correlated to worse post-operative function and longer rehabilitation time.
  
  
  METHODS
  IV.
authors.affiliation: Arthroscopy and Sports Injuries Unit, Hasharon Hospital, Rabin Medical Center, 7 Keren Kayemet St, 49372, Petach Tikva, Israel. barak_haviv69@hotmail.com.|Orthopedic Department, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel. barak_haviv69@hotmail.com.
authors.forename: Barak
authors.initials: B
authors.lastname: Haviv
authors.affiliation: Arthroscopy and Sports Injuries Unit, Hasharon Hospital, Rabin Medical Center, 7 Keren Kayemet St, 49372, Petach Tikva, Israel.
authors.forename: Shlomo
authors.initials: S
authors.lastname: Bronak
authors.affiliation: Orthopedic Department, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.|Orthopedic Department, Beilinson Hospital, Rabin Medical Center, Petach Tikva, Israel.
authors.forename: Yona
authors.initials: Y
authors.lastname: Kosashvili
authors.affiliation: Arthroscopy and Sports Injuries Unit, Hasharon Hospital, Rabin Medical Center, 7 Keren Kayemet St, 49372, Petach Tikva, Israel.|Orthopedic Department, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
authors.forename: Rafael
authors.initials: R
authors.lastname: Thein
mesh_terms: D000328:Adult; D018771:Arthralgia / Q000601:surgery; D001182:Arthroscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007718:Knee Injuries / Q000601:surgery*; D007719:Knee Joint / Q000601:surgery*; D065466:Lysholm Knee Score; D008297:Male; D008592:Menisci, Tibial / Q000601:surgery*; D008875:Middle Aged; D015999:Multivariate Analysis; D010147:Pain Measurement; D011446:Prospective Studies; D020127:Recovery of Function; D012421:Rupture; D000070600:Tibial Meniscus Injuries / Q000601:surgery*; D016896:Treatment Outcome
keywords: Arthroscopy; Factors; Knee; Meniscectomy; Outcome
references.citation: Arthroscopy. 1996 Feb;12 (1):39-44
references.pmid: 8838727
references.citation: Ann Rheum Dis. 1957 Dec;16(4):494-502
references.pmid: 13498604
references.citation: Osteoarthritis Cartilage. 2001 May;9(4):316-24
references.pmid: 11399095
references.citation: Knee Surg Sports Traumatol Arthrosc. 2013 Feb;21(2):358-64
references.pmid: 22437659
references.citation: Arthroscopy. 1992;8(3):345-9
references.pmid: 1418207
references.citation: Arthroscopy. 1997 Dec;13(6):673-9
references.pmid: 9442319
references.citation: Arthroscopy. 2008 Jul;24(7):769-78
references.pmid: 18589265
references.citation: Arthritis Rheum. 2003 Aug;48(8):2178-87
references.pmid: 12905471
references.citation: N Engl J Med. 2013 Dec 26;369(26):2515-24
references.pmid: 24369076
references.citation: Arthroscopy. 2005 Feb;21(2):211-23
references.pmid: 15689872
references.citation: Am J Sports Med. 2010 Sep;38(9):1907-16
references.pmid: 20587698
references.citation: J Pak Med Assoc. 1997 Aug;47(8):210-3
references.pmid: 9339619
references.citation: J Bone Joint Surg Br. 2006 Dec;88(12 ):1549-56
references.pmid: 17159163
references.citation: Clin Orthop Relat Res. 2000 Aug;(377):161-8
references.pmid: 10943198
references.citation: J Bone Joint Surg Am. 2006 Apr;88(4):698-705
references.pmid: 16595458
references.citation: J Bone Joint Surg Am. 2003;85-A Suppl 2:58-69
references.pmid: 12721346
references.citation: Acta Orthop Scand. 1995 Apr;66(2):113-7
references.pmid: 7740938
references.citation: Arthroscopy. 2013 Feb;29(2):232-7
references.pmid: 23270789
references.citation: J Am Acad Orthop Surg. 2007 Nov;15(11):647-53
references.pmid: 17989415