PMID- 20382040
OWN - NLM
STAT- MEDLINE
DCOM- 20100928
LR  - 20161018
IS  - 1532-6500 (Electronic)
IS  - 1058-2746 (Linking)
VI  - 19
IP  - 4
DP  - 2010 Jun
TI  - Total shoulder arthroplasty with an uncemented soft-metal-backed glenoid 
      component.
PG  - 624-31
LID - 10.1016/j.jse.2009.12.021 [doi]
AB  - BACKGROUND: Loosening associated with cemented polyethylene glenoid components is 
      a major concern following total shoulder arthroplasty (TSA). The purpose of this 
      study was to investigate the clinical and radiographic results associated with 
      use of a novel uncemented soft-metal-backed glenoid component (SMBG), with a 
      minimum follow-up of 2 years. MATERIALS AND METHODS: Twenty-two patients (19 
      women) underwent TSA using a uncemented SMBG. The mean age was 68.5 years (range, 
      49-84). Mean follow-up was 50 months (range, 24-89). Indications for TSA were 
      primary osteoarthritis (10), post-traumatic osteoarthritis (8), steroid-induced 
      avascular necrosis (2), crystalline arthropathy (1), and arthritis secondary to 
      systemic lupus erythematodes (1). Subjective and objective parameters were 
      assessed. Loosening and polyethylene wear were evaluated. RESULTS: Mean absolute 
      Constant scores improved from 29.1 to 65.9 points (P < .001), age- and 
      sex-adjusted Constant scores improved from 40.1 to 87.7% (P < .001), and 
      subjective shoulder values improved from 35% to 75.2% (P < .001). Mean pain 
      scores improved from 4.2 points to 13.1 (P < .001). Three cases had a fractured 
      glenoid component. Only these 3 had a definite loosening. Polyethylene wear was 
      found in 2 cases. CONCLUSION: Use of an uncemented SMBG component yields 
      controversial results. Osteointegration appears possible and loosening signs have 
      virtually not been observed. Conversely, the current implant can be associated 
      with a high failure rate (13.6%) because of implant fractures despite short 
      follow-up. As loosening seems absent or minimal but implant stability 
      insufficient, design changes need to be performed and tested in view of solving 
      the implant failure problem while preserving the actually excellent bone-implant 
      interface characteristics.
CI  - Copyright 2010 Journal of Shoulder and Elbow Surgery Board of Trustees. Published 
      by Mosby, Inc. All rights reserved.
FAU - Fucentese, Sandro F
AU  - Fucentese SF
AD  - Department of Orthopaedics, University of Zurich, Balgrist University Hospital, 
      Zurich, Switzerland.
FAU - Costouros, John G
AU  - Costouros JG
FAU - Kuhnel, Stefanie-Peggy
AU  - Kuhnel SP
FAU - Gerber, Christian
AU  - Gerber C
LA  - eng
PT  - Journal Article
PT  - Review
DEP - 20100409
PL  - United States
TA  - J Shoulder Elbow Surg
JT  - Journal of shoulder and elbow surgery
JID - 9206499
RN  - 0 (Coated Materials, Biocompatible)
RN  - 0 (Metals)
SB  - IM
EIN - J Shoulder Elbow Surg. 2010 Sep;19(6):950
MH  - Arthroplasty, Replacement/*methods
MH  - *Coated Materials, Biocompatible
MH  - Humans
MH  - Humerus/*surgery
MH  - Joint Diseases/*surgery
MH  - *Joint Prosthesis
MH  - *Metals
MH  - Prosthesis Design
MH  - Shoulder Joint/*surgery
MH  - Treatment Outcome
RF  - 47
EDAT- 2010/04/13 06:00
MHDA- 2010/09/30 06:00
CRDT- 2010/04/13 06:00
PHST- 2009/10/29 00:00 [received]
PHST- 2009/12/18 00:00 [revised]
PHST- 2009/12/20 00:00 [accepted]
PHST- 2010/04/13 06:00 [entrez]
PHST- 2010/04/13 06:00 [pubmed]
PHST- 2010/09/30 06:00 [medline]
AID - S1058-2746(10)00005-4 [pii]
AID - 10.1016/j.jse.2009.12.021 [doi]
PST - ppublish
SO  - J Shoulder Elbow Surg. 2010 Jun;19(4):624-31. doi: 10.1016/j.jse.2009.12.021. 
      Epub 2010 Apr 9.