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J Orthop Trauma. 2017 Jul;31(7):387-392. doi: 10.1097/BOT.0000000000000833.

Tibial Eminence Involvement With Tibial Plateau Fracture Predicts Slower Recovery and Worse Postoperative Range of Knee Motion.

Author information

1
*Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases; and†Jamaica Hospital Medical Center New York, NY.

Abstract

OBJECTIVES:

To examine 1-year functional and clinical outcomes in patients with tibial plateau fractures with tibial eminence involvement.

DESIGN:

Retrospective analysis of prospectively collected data.

SETTING:

Academic Medical Center.

PATIENTS/PARTICIPANTS:

All patients who presented with a tibial plateau fracture (Orthopaedic Trauma Association (OTA) 41-B and 41-C).

INTERVENTION:

Patients were divided into fractures with a tibial eminence component (+TE) and those without (-TE) cohorts. All patients underwent similar surgical approaches and fixation techniques for fractures. No tibial eminence fractures received fixation specifically.

MAIN OUTCOME MEASUREMENTS:

Short musculoskeletal functional assessment (SMFA), pain (Visual Analogue Scale), and knee range-of-motion (ROM) were evaluated at 3, 6, and 12 months postoperatively and compared between cohorts.

RESULTS:

Two hundred ninety-three patients were included for review. Patients with OTA 41-C fractures were more likely to have an associated TE compared with 41-B fractures (63% vs. 28%, P < 0.01). At 3 months postoperatively, the +TE cohort was noted to have worse knee ROM (75.16 ± 51 vs. 86.82 ± 53 degree, P = 0.06). At 6 months, total SMFA and knee ROM was significantly worse in the +TE cohort (29 ± 17 vs. 21 ± 18, P ≤ 0.01; 115.6 ± 20 vs. 124.1 ± 15, P = 0.01). By 12 months postoperatively, only knee ROM remained significantly worse in the +TE cohort (118.7 ± 15 vs. 126.9 ± 13, P < 0.01). Multivariate analysis revealed that tibial eminence involvement was a significant predictor of ROM at 6 and 12 months and SFMA at 6 months. Body mass index was found to be a significant predictor of ROM and age was a significant predictor of total SMFA at all time points.

CONCLUSION:

Knee ROM remains worse throughout the postoperative period in the +TE cohort. Functional outcome improves less rapidly in the +TE cohort but achieves similar results by 1 year.

LEVEL OF EVIDENCE:

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

PMID:
28633149
DOI:
10.1097/BOT.0000000000000833
[Indexed for MEDLINE]

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