The Journal of Bone and Joint Surgery (American) 83:877-883 (2001)
© 2001 The Journal of Bone and Joint Surgery, Inc.
Long-Term Results of Total Shoulder Arthroplasty Following Bone-Grafting of the Glenoid
James M. Hill, MD and
Tom R. Norris, MD
Investigation performed at California Pacific Medical Center,
San Francisco, California
James M. Hill, MD
Orthopaedic Associates, 1300 East Central Road, Arlington Heights,
IL 60005
Tom R. Norris, MD
California Pacific Medical Center, 2351 Clay Street, Suite 510,
San Francisco, CA 94115
No benefits in any form have been received or will be received
from a commercial party related directly or indirectly to the subject
of this article. No funds were received in support of this study.
Background: The marked loss of glenoid bone
volume or alteration of glenoid version can affect glenoid component
fixation in patients undergoing total shoulder arthroplasty. The
purpose of this study was to evaluate the long-term results associated
with the use of bone-grafting for restoration of glenoid volume
and version at the time of total shoulder arthroplasty.
Methods: Twenty-one shoulders received
an internally fixed, corticocancellous bone graft for the restoration
of peripheral glenoid bone stock at the time of total shoulder arthroplasty
between 1980 and 1989. Grafting was indicated when glenoid bone
stock was insufficient to maintain adequate version or fixation
of the prosthesis. Seventeen shoulders were available for follow-up;
the average duration of follow-up for the thirteen shoulders that
did not have prosthetic failure within the first two years was seventy
months. Total shoulder arthroplasty was performed because of osteoarthritis
in five shoulders, chronic anterior fracture-dislocation in five,
capsulorrhaphy arthropathy in three, inflammatory arthritis in two,
recurrent dislocation in one, and failure of a previous arthroplasty
in one. All patients had some form of anterior or posterior instability
preoperatively. There were five anterior and twelve posterior glenoid
defects. Bone from the resected humeral head was used for grafting
in fifteen shoulders, and bicortical iliac-crest bone was used in two.
Results: The average glenoid version after grafting
was 4° of retroversion, with an average correction of 33°. The graft
failed to maintain the original correction in three shoulders due
to nonunion, dissolution, or shift. Five total shoulder replacements
failed, necessitating glenoid revision at two to ninety-one months
postoperatively. The failures were associated with recurrent massive
cuff tears (one shoulder), persistent instability (two shoulders), improper
component placement (one shoulder), and loss of graft fixation (one
shoulder). There were no humeral component failures. According to
the criteria of Neer et al., the functional result was rated as excellent
in three shoulders, satisfactory in six, and unsatisfactory in eight.
Conclusions: Despite the finding that eight shoulders
had an unsatisfactory functional result at the time of long-term
follow-up, corticocancellous grafting of the glenoid successfully
restored glenoid version and volume in fourteen of the seventeen
shoulders in the present study. Patients with glenoid deficiency often
have associated glenohumeral instability, which may affect the results
of total shoulder arthroplasty. Bone-grafting of the glenoid is
a technically demanding procedure that can restore bone stock in
patients with structural defects.

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