JOURNAL ARTICLE

Mid-term outcome comparing temporary K-wire fixation versus PDS augmentation of Rockwood grade III acromioclavicular joint separations

Bernd A Leidel, Volker Braunstein, Susann Pilotto, Wolf Mutschler, Chlodwig Kirchhoff
BMC Research Notes 2009, 2: 84
19426540

BACKGROUND: The treatment of acute acromioclavicular (AC) joint injuries depends mainly on the type of the dislocation and patient demands. This study compares the mid term outcome of two frequently performed surgical concepts of Rockwood grade III AC joint separations: The temporary articular fixation with K-wires (TKW) and the refixation with an absorbable polydioxansulfate (PDS) sling.

FINDINGS: Retrospective observational study of 86 patients with a mean age of 37 years underwent either TKW (n = 70) or PDS treatment (n = 16) of Rockwood grade III AC joint injuries. Mid term outcome with a mean follow up of 3 years was measured using a standardized functional patient questionnaire including Constant score, ASES rating scale, SPADI, XSMFA-D and a pain score. K-wire therapy resulted in significantly better functional results expressed by Constant score (88 +/- 10 vs. 73 +/- 18), ASES rating scale (29 +/- 3 vs. 25 +/- 5), SPADI (3 +/- 9 vs. 9 +/- 13), XSMFA-D function (13 +/- 2 vs. 14 +/- 3), XSMFA-D impairment (4 +/- 1 vs. 6 +/- 2) and pain score (1 +/- 1 vs. 2 +/- 2).

CONCLUSION: Either temporary K-wire fixation and PDS sling enable good or satisfying functional results in the treatment of Rockwood grade III AC separations. However functional outcome parameters indicate a significant advantage for the K-wire technique.

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