Orthop Traumatol Sur
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Orthop Traumatol Sur · Sep 2017
Can a target zone safer than Lewinnek's safe zone be defined to prevent instability of total hip arthroplasties? Case-control study of 56 dislocated THA and 93 matched controls.
Various factors contribute to instability of total hip arthroplasty (THA), with implant orientation being a major contributor. We performed a case-control study with computed tomography (CT) data to determine whether: 1) orientation contributes to THA instability and 2) a safer target zone for stability than Lewinnek's classic safe zone can be defined. ⋯ III case-control study.
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Orthop Traumatol Sur · Sep 2017
Review Meta AnalysisLong and short intramedullary nails for fixation of intertrochanteric femur fractures (OTA 31-A1, A2 and A3): A systematic review and meta-analysis.
Previous studies have reported conflicting findings concerning the efficacy and safety of the treatment of intertrochanteric fractures (OTA 31-A1,A2 and A3) using short intramedullary nails (SIN) and long intramedullary nails (LIN). The present meta-analysis and literature review investigated the outcomes of SIN and LIN, thereby providing guidance for the treatment of intertrochanteric femur fractures. When used to treat intertrochanteric femur fractures, LIN did not decrease the secondary femoral shaft refracture or reoperation rates. ⋯ LIN may not be a better method or provide more effective treatment for intertrochanteric femur fractures; the LIN patients demonstrated the same prognosis as the SIN patients, particularly in terms of secondary femoral shaft refracture and reoperation rate, but they experienced greater trauma. Due to the limitations of the included studies, however, more highly powered randomized controlled trials are needed to clarify the findings. Systematic review and meta-analysis.
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Orthop Traumatol Sur · Sep 2017
Multicenter StudyEvaluation of the external fixator TrueLok Hexapod System for tibial deformity correction in children.
Tibial deformities are common in paediatric orthopaedic practice. Correcting multiplanar tibial deformities associated with lower limb length discrepancy can be challenging. Hexapod external fixation with gradual correction has been proven effective in this situation. ⋯ IV (retrospective study).
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Orthop Traumatol Sur · Sep 2017
Clinical assessment of 115 cases of hindfoot fusion with two different types of graft: Allograft+DBM+bone marrow aspirate versus autograft+DBM.
Nonunion is a common complication (15%) of hindfoot and ankle arthrodesis. Autograft can improve the fusion rate because of its osteoconductive, osteoinductive and osteogenic properties. However, autograft harvesting is a source of morbidity. One alternative is to combine allograft with demineralized bone matrix (DBM) and iliac bone marrow aspirate (BMA). This combination graft has similar biological properties to healthy bone. When used alone, allograft has osteoconductive and sometimes structural properties. DBM provides osteoinduction and improves the osteconductivity. BMA adds cells and thereby osteogenic potential. ⋯ III retrospective study.
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Orthop Traumatol Sur · Sep 2017
Relevance of MRI for management of non-displaced lateral humeral condyle fractures in children.
The treatment for non-displaced (<2 mm displacement) fractures of the lateral humeral condyle in children is controversial. Most studies recommend non-surgical treatment. However, plain radiographs are not sufficient to evaluate extension of the fracture line through the articular cartilage. This explains the high frequency of secondary displacements and non-unions, despite well-conducted conservative treatment. We hypothesized that MRI could be used to analyse whether the fracture is complete or incomplete. This could help to determine whether surgical or conservative treatment is indicated. ⋯ 3 Prospective study.