Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Mar 2018
Comparative StudyBiomechanical in vitro comparison of suture anchors for thumb UCL repair.
Different types of intraosseous suture anchors can be used for thumb ulnar collateral ligament (UCL) repair surgery. Some of them have already been tested biomechanically in intact bone; however, there exists little knowledge of their stability when implanted in avulsion fracture. In this biomechanical in vitro study, three anchor types (hard, soft and novel BoneWelding) were tested on 24 fresh frozen human thumbs from 12 body donors. ⋯ The most common mode of failure in ligamentous UCL repairs was the suture-ligament interface, especially when using soft anchors. In avulsion fractures, the novel anchor withstood significantly higher pullout forces than the hard or soft anchor (65 N vs. 42 N vs. 27 N; p = .006). The BW anchor provides sufficient anchorage in trabecular bone for UCL repair in case of avulsion fractures.
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Arch Orthop Trauma Surg · Mar 2018
Comparative StudyComparison of the outcome between unilateral and bilateral open wedge high tibial osteotomy in the bilateral varus knees.
Bilateral open wedge high tibial osteotomy (OWHTO) can be performed in a staged manner to enable the healing and rehabilitation of each limb separately after surgery. However, the effects of staged bilateral OWHTO on the pattern of recovery and changes over time for each limb have not been established. Additionally, there is a lack of information regarding the optimal timing for staged surgery. ⋯ The smaller loss of correction in the unilateral OWHTO group occurred compared to the bilateral OWHTO group. Additionally, surgeons should keep in mind that the amount of correction loss may be greater if staged bilateral OWHTO is performed at intervals of 3 months or less.
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Arch Orthop Trauma Surg · Mar 2018
New angle measurement device to control the posterior tibial slope angle in medial opening wedge high tibial osteotomy.
Medial opening wedge high tibial osteotomy has been associated with an unintentional increase in the posterior tibial slope angle. We aimed to evaluate the effectiveness of a novel bone spreader angle rod to maintain the native posterior tibial slope angle in medial opening wedge high tibial osteotomy. ⋯ IV.
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Arch Orthop Trauma Surg · Mar 2018
Cementless total hip arthroplasty for severely dislocated hips previously treated with Schanz osteotomy of the proximal femur.
We report the short-term outcomes of total hip arthroplasty(THA) in patients previously treated with Schanz osteotomy (SO). ⋯ THA for hips previously treated with SO is technically demanding. If careful preoperative planning is performed, successful treatment can be achieved.
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Arch Orthop Trauma Surg · Mar 2018
Functional outcomes after removal of hardware in patellar fracture: are we helping our patients?
Functional outcomes after Open Reduction Internal Fixation (ORIF) of the patella are variable. Common complications of patella ORIF include persistent anterior knee pain, limited range of motion and symptomatic hardware. The purpose of this study was to evaluate if removal of hardware is beneficial to symptomatic patients after patellar fracture fixation. ⋯ Hardware removal after patella ORIF significantly improves patient reported pain and quality of life outcomes but not functional outcomes. Patients should be counseled regarding the expected outcome of hardware removal following patella ORIF and diabetic patients should be given special consideration before undergoing this procedure.