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Characteristics of medial condyle sagittal fracture of distal femur involving intercondylar notch in geriatric patients.
Archives of Orthopaedic and Trauma Surgery 2020 March 12
INTRODUCTION: Unicondylar femoral fractures are uncommon injuries, known to occur primarily in young people, with high energy trauma. However, according to our experiences, unicondylar femoral fractures in geriatric patients generally involved the medial femoral condyle, unlike previously reported. In addition, the fractures of medial femoral condyle (FMFC) showed a characteristic fracture pattern. To date, there has been no published article focusing on the FMFC in geriatric patients. Thus, the aim of this study was to determine the characteristics of FMFC in geriatric patients and to present their outcomes.
MATERIALS AND METHODS: We retrospectively reviewed the medical records of 13 patients over age of 65 who underwent surgery for FMFC (AO-OTA 33B2). Of the 13, 10 patients were treated with Tomofix medial distal femoral plate (MDF) (Synthes GmbH, Switzerland) and additional screws fixation; the other three were treated with screw fixation and cast application.
RESULTS: The mean age of patients was 76.8 years, and 10 patients were females. The fracture was due to low-energy trauma in all of the cases. Eight patients had medial knee osteoarthritis, and 2 patients were on osteoporosis treatment. A characteristic fracture pattern was observed. The fracture line extended from the lateral aspect of the intercondylar notch to the posteromedial column of the distal femur, with a characteristic medial beak. All fractures belonged to AO classification 33B2.1; there were no cases of AO classification 33B2.2 or 33B2.3. The postoperative joint function was graded according to the Kolmert functional criteria: ten cases were excellent, one case was good, one case was fair, and one case was poor.
CONCLUSION: FMFC caused by low-energy trauma in geriatric patients tend to have a characteristic pattern. We believe that anatomic reduction and firm fixation with Tomofix MDF plate and cannulated screw for low-energy trauma FMFC in geriatric patients would yield good outcomes.
MATERIALS AND METHODS: We retrospectively reviewed the medical records of 13 patients over age of 65 who underwent surgery for FMFC (AO-OTA 33B2). Of the 13, 10 patients were treated with Tomofix medial distal femoral plate (MDF) (Synthes GmbH, Switzerland) and additional screws fixation; the other three were treated with screw fixation and cast application.
RESULTS: The mean age of patients was 76.8 years, and 10 patients were females. The fracture was due to low-energy trauma in all of the cases. Eight patients had medial knee osteoarthritis, and 2 patients were on osteoporosis treatment. A characteristic fracture pattern was observed. The fracture line extended from the lateral aspect of the intercondylar notch to the posteromedial column of the distal femur, with a characteristic medial beak. All fractures belonged to AO classification 33B2.1; there were no cases of AO classification 33B2.2 or 33B2.3. The postoperative joint function was graded according to the Kolmert functional criteria: ten cases were excellent, one case was good, one case was fair, and one case was poor.
CONCLUSION: FMFC caused by low-energy trauma in geriatric patients tend to have a characteristic pattern. We believe that anatomic reduction and firm fixation with Tomofix MDF plate and cannulated screw for low-energy trauma FMFC in geriatric patients would yield good outcomes.
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