Journal of orthopaedic surgery (Hong Kong)
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J Orthop Surg (Hong Kong) · May 2017
Comparative StudyA biomechanical comparison of the two- and four-hole side-plate dynamic hip screw in an osteoporotic composite femur model.
The objectives of this study were (1) to compare the axial and torsional stiffness of a dynamic hip screw with a two- and four-hole side-plate in a synthetic model of a healed and stable intertrochanteric femur fracture and (2) to evaluate the load to failure, as well as propensity to peri-implant fracture. ⋯ The results of this study demonstrate that DHS constructs with a two- or four-hole side-plate are biomechanically comparable with regard to axial and torsional stiffness and load to failure in an osteoporotic composite femur model. In a healed intertrochanteric fracture model, a two-hole construct did not appear to be more prone to peri-implant fracture. To date, a biomechanical comparison of these two implants with regard to torsional forces has not been reported.
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J Orthop Surg (Hong Kong) · May 2017
Analysis of functional outcome of Hoffa fractures: A retrospective review of 32 patients.
Hoffa fractures are uncommon intra-articular fractures of femoral condyle in coronal plane. The purpose of our study is to assess radiologic and functional outcome in operatively treated Hoffa fractures. ⋯ Operative treatment of Hoffa fractures yields fairly good functional outcome. One must endeavor to achieve adequate intraoperative exposure and stable congruous articular reconstruction. Early aggressive physical therapy is a harbinger of optimal outcome.
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J Orthop Surg (Hong Kong) · May 2017
Surgical technique and early outcomes of intramedullary nailing of displaced proximal humeral fractures in an Asian population using a contemporary straight nail design.
Despite being a common orthopedic injury, the optimal management of proximal humeral fractures remains a topic of debate. Although intramedullary nails have been used to treat these fractures, several complications have been reported with older nail devices. We describe our surgical technique and aim to evaluate the early functional and radiological outcomes of displaced Neer's two- to four-part proximal humeral fractures undergoing fixation with a contemporary straight intramedullary nail. ⋯ Our study demonstrated that intramedullary nailing using the contemporary straight nail design is well suited for Neer's two- and three-part proximal humeral fractures, with good early outcomes and low rates of complications. Results for four-part fractures were, however, inferior in our cohort, suggesting that further studies with larger patient numbers are needed to determine the role of intramedullary nailing for four-part fractures.
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J Orthop Surg (Hong Kong) · May 2017
Concomitant SLAP repair does not influence the surgical outcome for arthroscopic Bankart repair of traumatic shoulder dislocations.
Prior studies revealed the presence of superior labrum anterior-to-posterior (SLAP) injury together with Bankart lesions in some patients. The purpose of the study is to compare the clinical results of isolated Bankart repairs with the clinical results of Bankart repairs when performed with concomitant SLAP repairs. ⋯ Accompanying SLAP repair in surgical treatment with Bankart repair for shoulder instability does not affect the results negatively. Properly repaired labral tears extending from anterior inferior to the posterior superior of the glenoid in instability treatment have the same outcome in overall results as repaired isolated Bankart lesions.
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J Orthop Surg (Hong Kong) · May 2017
Total hip arthroplasty after failed osteosynthesis of proximal femoral fractures: Revision and mortality of 80 patients.
Total hip arthroplasty (THA) after failed osteosynthesis for proximal femoral fractures is associated with higher revision rates, particularly for dislocation. The purpose of this study was to report our results with THA after failed osteosynthesis within a treatment period of 10 years. ⋯ THA was associated with an increased surgical revision rate, but hip dislocation was documented only once. In most cases, a standard implant with a large 36-mm femoral head size was sufficient. Uncemented revision stem revealed significantly higher number of revisions-compared to standard cemented or uncemented stem. One-year mortality was lower than expected.