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. 2015 Feb;29(2):80-4.
doi: 10.1097/BOT.0000000000000201.

Fix it or discard it? A retrospective analysis of functional outcomes after surgically treated patella fractures comparing ORIF with partial patellectomy

Nicolas S Bonnaig  1 , Chris Casstevens, Michael T Archdeacon, Camille Connelly, Nathan Monaco, John D Wyrick, Theodore T Le
Affiliations

Fix it or discard it? A retrospective analysis of functional outcomes after surgically treated patella fractures comparing ORIF with partial patellectomy

Nicolas S Bonnaig et al. J Orthop Trauma. 2015 Feb.

Abstract

Objectives: The goal of this study was to compare functional outcomes of patients with patella fractures treated with open reduction and internal fixation (ORIF) with those treated with partial patellectomy (PP).

Design: Retrospective cohort study.

Setting: Urban Level I Trauma Center.

Patients: Seventy-three patients with isolated displaced patella fractures underwent operative treatment between January 1, 2002, and December 31, 2009, at our institution. Of these, 52 (71%) patients with isolated patella fractures with minimum 1-year follow-up agreed to participate and were enrolled in the study.

Intervention: PP or ORIF.

Main outcome measurements: Patients completed outcome questionnaires and participated in a physical examination. Outcome instruments included the Knee Outcome Survey-Activities of Daily Living Scale, Short Form (SF)-36 Health Survey, and SF Musculoskeletal Function Assessment Survey.

Results: Twenty-six patients underwent PP and 26 underwent ORIF. There were no significant differences in any of the functional outcome instruments, including Knee Outcome Survey-Activities of Daily Living Scale (ORIF: 64.1 ± 11, PP: 62.1 ± 7.9, P = 0.76), SF-36 physical component score (ORIF: 40.8 ± 5.4, PP: 41.1 ± 5.2, P = 0.94), SF-36 mental component (ORIF: 47.7 ± 5.1, PP: 51.8 ± 4.9, P = 0.19), Short Musculoskeletal Function Assessment (SMFA) Function Index (ORIF: 28.6 ± 9.1, PP: 27.7 ± 6.7, P = 0.78), or SMFA Bother Index (ORIF: 26.0 ± 9.7, PP: 23.6 ± 8.8, P = 0.72). Complication rates did not differ significantly between the 2 groups.

Conclusions: This study demonstrates that functional impairment persists after operative treatment of patella fractures. Both ORIF and PP demonstrated similar final range of motion, functional scores, and complication rates. Despite its purported benefits, in this study, ORIF did not result in superior outcomes compared with PP.

Level of evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

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