Predicting amputation and multiple debridements in tooth knuckle injuries

Smith, H.R., Conyard, C., Loveridge, J., and Gunnarsson, R. (2019) Predicting amputation and multiple debridements in tooth knuckle injuries. Journal Of Hand Surgery Asian-Pacific Volume, 24 (1). pp. 6-12.

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Background: Tooth knuckle injuries can be expensive to treat and may necessitate amputation in some cases. Several limitations exist in the literature regarding our knowledge around the factors predicting amputation and the need for multiple debridements in treating this injury.

Methods: A historic cohort study of 321 patients treated for tooth knuckle injuries was undertaken. Twenty-one demographic, clinical and laboratory variables were collected. Two outcome measurements were collected - the need for amputation and the need for more than one surgical debridement. A multivariate logistic regression was performed to determine the relationship between the predictor variables and the outcome measurements.

Results: Of the 321 patients examined, 1.6% required amputations and 25% required multiple debridements. Osteomyelitis was found to be a major predictor for amputation in these patients (OR = 35). Delayed presentation (OR = 1.1) and diabetes (OR = 2.6) were found to significantly increase the risk of requiring multiple debridements.

Conclusions: Our models were able to predict what patients were at the greatest risk for amputation and multiple debridement. Reducing rates of osteomyelitis and delays in presentation may help reduce the incidence of amputation and reoperation in this injury.

Item ID: 57326
Item Type: Article (Research - C1)
ISSN: 1793-6535
Keywords: clenched fist injury, tooth knuckle injury, amputation, health care costs
Funders: College of Medicine and Dentistry, James Cook University
Projects and Grants: Grant number JCU-QLD-544191
Date Deposited: 06 Mar 2019 07:39
FoR Codes: 32 BIOMEDICAL AND CLINICAL SCIENCES > 3202 Clinical sciences > 320216 Orthopaedics @ 100%
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