Introduction: Patients desire to return to normal activities soon after hip arthroplasty, with driving often being an integral component. We aimed to determine when patients resumed driving following a minimally invasive anterior bikini hip replacement and when they returned to work.Methodology: All consecutive patients undergoing elective primary bikini hip replacements between January 2017 and April 2018 were included in the study. Patients who did not drive were excluded. A detailed questionnaire was sent to patients 3–6 weeks after surgery to record their driving status. Fifty patients were randomly selected to assess flexion at the hip, knee and ankle joints while seated in the driver's seat of their own vehicle.Results: Altogether 212 anterior bikini total hip replacements (L = 102, R = 108 and 1 bilateral one stage) were performed in 198 patients (F = 129 and M = 69) with a mean age of 69 years. A total of 76% patients returned to driving within the first 3 weeks after surgery, of which 25 (14%) resumed driving within the first post-operative week, 71 (39%) in the second week and 42 (23%) in the third week. Among them, 98.4% stated they were confident when they first started driving and 90.66% stated they were more comfortable driving after surgery than before. Employed patients returned to work within 1–79 days (mean = 24 days).Conclusion: Surgeons may allow patients to resume driving within 1 week after anterior hip replacement and return to work within 3 weeks if they are medically fit and deemed safe.

Introduction: We conducted this study to determine if the pre-surgical patient specific instrumented planning based on Computed Tomography (CT) scans can accurately predict each of the femoral and tibial resections performed through 3D printed cutting guides. The technique helps in optimization of component positioning determined by accurate bone resection and hence overall alignment thereby reducing errors.Methods: Prophecy evolution medial pivot patient specific instrumented knee replacement systems were used for end stage arthrosis in all consecutive cases over a period of 20 months by a single surgeon. All resections (4 femoral and 2 tibial) were measured using a vernier callipers intraoperatively. These respective measurements were then compared with the preoperative CT predicted bone resection surgical plan to determine margins of errors that were categorized into 7 groups (0 mm to ≥2.6 mm).Results: A total of 3618 measurements (averaged to 1206) were performed in 201 knees (105 right and 96 left) in 188 patients (112 females and 76 males) with an average age of 67.72 years (44 to 90 years) and average BMI of 32.3 (25.1 to 42.3). 94% of all collected resection readings were below the error margin of ≤1.5 mm of which 90% showed resection error of ≤1 mm. Mean error of different resections were ≤0.60 mm (P ≤ 0.0001). In 24% of measurements there were no errors or deviations from the templated resection (0.0 mm).Conclusion: The 3D printed cutting blocks with slots for jigs accurately predict bone resections in patient specific instrumentation total knee arthroplasty which would directly affect component positioning.

No abstract

INTRODUCTIONFractures of the proximal humerus are the most common fractures of this bone and constitute 5-6% of the total fracture incidence in adults; and this incidence increases with age.1 Complex fractures of the proximal humerus are often difficult to treat and result in considerable shoulder dysfunction unless adequately treated.2 According to the Neer's criteria for the proximal humerus fractures, fractures with fragments separated more than 1 cm or with more than 45 degree angulation are considered as displaced fractures; 3,4 and hence need open reduction and internal fixation. Most of the surgeons are familiar with the traditional deltopectoral approach, which utilizes the internervous plane between the pectoralis major and the deltoid; and hence this is the most commonly used approach for proximal humerus fracture fixation. 2 But in certain fractures in which the fragments especially the greater tuberosity fragment is displaced, usually posterolaterally, reduction through this approach is difficult. In addition, the application of plates on the lateral surface of proximal humerus requires a lot of soft tissue dissection and retraction. Hence an access from the lateral aspect would be far more convenient in certain circumstances. The transdeltoid or the deltoid splitting ABSTRACT Background: The deltopectoral approach is the most commonly used approach for the reduction and fixation of proximal humerus fractures. But it provides inadequate access to the posteriorly displaced fragments in comminuted fractures and to the lateral surface where the plate is to be applied. These disadvantages can be obviated by a direct lateral transdeltoid approach. There have been concerns regarding postoperative axillary nerve palsy and deltoid dysfunction with this approach. This study had been conceptualized to assess the outcome of fixation of proximal humerus fractures with deltoid splitting lateral approach. Methods: A total of 20 patients with Neer's type 2 and 3 fractures of proximal humerus were included in this study. Lateral transdeltoid approach was used for exposure, with either an extended incision or a "two window" less invasive incision, depending upon the fracture anatomy. Functional outcome was assessed using the Constant Murley shoulder score. Results: The fracture was classified as Neer's type 2 in 30% and type 3 in 70% of the cases. The mean Constant Murley score at final follow up was 78 (range 64-84). Graded according to the Constant shoulder score grading criteria, the results were excellent in 60%, good in 35% and fair in 5% of the cases. No case of postoperative axillary nerve palsy was encountered. Conclusions: The functional outcome was either excellent or good in 95% of the cases and no case of axillary nerve palsy was seen. Hence, Lateral transdeltoid approach is a convenient and useful approach to proximal humerus fractures.

ObjectivesMost patients want to resume normal activities as soon as possible after total knee arthroplasty (TKA), with driving an integral aspect to re-establish social and recreational independence. This study aimed to determine when patients resumed driving after TKA.MethodsAll patients undergoing patient-specific instrumented (PSI) medial pivot TKA between January 2017 and April 2018 were included. Patients who did not drive were excluded. A detailed questionnaire was sent to patients 2 weeks after surgery to record their driving status. 50 patients were randomly selected to assess flexion at the hip, knee and ankle joints while seated in the driver’s seat of their own vehicle.Results160 patients (female=94 and male=66) with a mean age of 68 years (45–90 years) underwent a PSI TKA (left side [L]=75, right side [R]=85). 73% patients returned to driving within the first 3 weeks after surgery, of which 15 (10%) resumed driving within the first postoperative week, 52 (35%) in the second week and 41 (28%) in the third week. The median time to resume driving following surgery was 3 weeks for both operative sides, with IQR of 2.0 (L) and 1.0 (R).ConclusionA majority of patients resume driving within 3 weeks after undergoing a PSI TKA, regardless of operative side or transmission of vehicle.Level of evidenceIV