Background. Proximal phalangeal fractures are caused by an injury to the dorsum of the hand. This usually causes volar angulation which is unstable when reduced. K-wiring or external fixation can damage the soft tissue envelope, can introduce infection and can loosen or displace. Traction splinting is not well described for these fractures. Objectives. Functional and radiographic assessment of all patients with proximal phalangeal fractures treated with traction splinting. Methods. Theatre records were examined for relevant injuries over a 2 year period. These patients were then assessed using a QuickDASH score, a questionnaire specific to traction splinting and with pre-op, intra-op, post-op and follow-up radiographs. Results. A total of 7 patients were treated with traction splinting, all by the senior author (FJS). Clinical follow was 16 months (range12-20). QuickDASH scores were 0, 0, 0, 0, 0, 2.5, 25/100. With regard to work (n=6), all patients but one scored 0/100 for disability with one patient describing mild work related difficulties. Those participating in sports/performing arts (n=6) scored 0/100. There were no finger-tip pain or numbness issues. Finger length perception was satisfactory in all patients. The splint slipped in 3 patients, secondary to horse riding, showering and through scratching. Two patients reported having a measurable loss of motion in the affected digit (follow-up 18 and 20 months), both with mild functional deficit. Radiographic outcomes showed that traction achieved acceptable length restoration, with no angular deformities. Finger length was maintained in all but one patient who had a shortening of 3.2mm. Conclusions. Traction splinting is a non-invasive, safe and inexpensive method of treating proximal phalangeal fractures. Results of our follow-up study show excellent functional and radiographic outcomes with minimal long term morbidity for this treatment option

Objectives. Femoral shaft fracture treatment often results in mal-alignment and the high dosage of radiation exposure. The objective of this study is to develop a Parallel Manipulator Robot (PMR) on traction table to overcome these difficulties so as achieve better alignment for the fractured femur and reduce radiation to both patients and physicians. Methods. The distal platform of PMR is attached to the central pole on standard traction table by the boot adaptor. A leg model with soft tissue made by Pacific Research Laboratory, Inc. is flexed at the knee with patella on the top. A 2/3 circular ring, with 1/3 open circle down, fixed to the fractured distal femur with one trans-wire and one self-tapping screw, acting as adaptable stirrup fixing scheme. To secure proximal femur, an adapter is assembled on the traction table and fixed on the proximal femur. The distal femur is fixed to the 2/3 circular ring platform of PMR. Surgical planning is performed by first acquiring the bi-planar images from the C-Arm X-ray machine. After simulated fracture on 3-D femoral model is made, proximal and distal segments of the model will be superimposed with background bi-planar images. Finally the pre-fractured length and mechanical axis of 3-D femoral model will be restored. Afterwards, a table of schedule for length adjustments of six struts of PMR is generated. This length adjustment schedule is used to drive the PMR for fractured femur alignment and reduction. When reduction completed, a special designed device is used to fix the reduced femur. Then the PMR is removed from the traction table and the patient can be removed from the traction table. Results. Eight femoral sawbones model were artificially broken into eight different fracture patterns. All the fracture patterns have characteristics of distal segments overlapping with proximal segments but in the different locations. The operations of reduction were all following the initial tractions. The results showed that the mean errors were 1.31+-0.45mm for axial discrepancies, 2.43+-0.49mm for lateral translations, 2.26+-0.23mm for angulations. Conclusion. Femoral Shaft Fracture Reduction with PMR on traction table has been built with femoral soft tissue model. The experiments had been made on artificially broken femoral sawbone models. The experiments had been proven that such approach is accurate enough for femoral shaft reduction. Further experiments are necessary in order for it to be used clinically

Objective. Femoral shaft fracture treatment often results in mal-alignment and the high dosage of radiation exposure. The objective of this study is to develop a Parallel Manipulator Robot (PMR) on traction table to overcome these difficulties so as achieve better alignment for the fractured femur and reduce radiation to both patients and physicians. Method. The distal platform of PMR is attached to the central pole on standard traction table by the boot adaptor. A leg model with soft tissue made by Pacific Research Laboratory, Inc. is flexed at the knee with patella on the top. A 2/3 circular ring, with 1/3 open circle down, fixed to the fractured distal femur with one trans-wire and one self-tapping screw, acting as adaptable stirrup fixing scheme. To secure proximal femur, an adapter is assembled on the traction table and fixed on the proximal femur. The distal femur is fixed to the 2/3 circular ring platform of PMR. Surgical planning is performed by first acquiring the bi-planar images from the C-Arm X-ray machine. After simulated fracture on 3-D femoral model is made, proximal and distal segments of the model will be superimposed with background bi-planar images. Finally the pre-fractured length and mechanical axis of 3-D femoral model will be restored. Afterwards, a table of schedule for length adjustments of six struts of PMR is generated. This length adjustment schedule is used to drive the PMR for fractured femur alignment and reduction. When reduction completed, a special designed device is used to fix the reduced femur. Then the PMR is removed from the traction table and the patient can be removed from the traction table. Results. Eight femoral sawbones model were artificially broken into eight different fracture patterns. All the fracture patterns have characteristics of distal segments overlapping with proximal segments but in the different locations. The operations of reduction were all following the initial tractions. The results showed that the mean errors were 1.31+−0.45mm for axial discrepancies, 2.43+−0.49mm for lateral translations, 2.26+−0.23mm for angulations. Conclusion. Femoral Shaft Fracture Reduction with PMR on traction table has been built with femoral soft tissue model. The experiments had been made on artificially broken femoral sawbone models. The experiments had been proven that such approach is accurate enough for femoral shaft reduction. Further experiments are necessary in order for it to be used clinically

Aim:. To review the use of traction x-rays under anaesthesia in Late Onset Scoliosis to correlate traction x-ray flexibility and postoperative correction using posterior nonsegmental all pedicle screw constructs. Methods:. Prospective study. Preoperative anteroposterior, lateral and side bending x-rays were done and Cobb angles were measured. Intraoperatively, traction anteroposterior x-rays were taken under anaesthesia and Cobb angles were measured. All patients underwent nonsegmental posterior all pedicle screw construct correction using Biomet implants. Cobb angles greater than 60 degees were included in the study. Calculations were done including correction rate, traction flexibility and traction correction index. Results were entered onto an excel spreadsheet and analyzed using Statistica software. Results:. 16 patients were studied, 3 boys and 13 girls, average age 14, ranging from 8 to 17 years. Preoperative Cobb angles were mean 82 (60 to 105) degrees. Traction x-rays mean Cobb angle was 42 degrees with mean traction flexibility rate 49%. Mean correction rate was 65% and mean traction correction index 106. Preoperative Cobb angles correlated with traction flexibility with a p value of 0.01. Traction x-rays Cobb angle correlated with the traction correction index (p = 0.003), postoperative x-rays (p = 0.000) and also with correction rate (p = 0.024). There was no correlation between preoperative Cobb angle and correction rate. Conclusion:. Traction x-rays under anaesthesia in late onset scoliosis are a good predictor of postoperative correction with posterior nonsegmental all pedicle screw constructs in curves greater than 60 degrees

A retrospective follow-up study was done, assessing regional practices in acute cervical reduction in hospitals in the Western Cape. The constitutional court ruled on the urgency in managing cervical dislocations, and our task is to ensure that medical treatment is optimized to comply with best medical practice and the apex court. A questionnaire was distributed and completed by emergency departments at each hospital, the results retrieved, analysed, and compared to a similar survey done in 2016.

Protocols for managing cervical spine dislocations had improved from 80% having no protocols to only over half of facilities (52,6%) not having protocols in place. Inadequate equipment availability remained a problem with only 50% of facilities having adequate equipment available in 2016 to 43,6% in 2023. 10,3% of participants did not know if there was equipment available. In terms of knowledge, there remained poor formal training with a drop from 93% participants identifying that the main indication to attempt emergency cervical reduction was acute cervical dislocation with worsening neurology, to only 46,2%. However, there was an increase in the number of participants who thought reduction was safe. The same percentage of participants from 2016 to 2023 would attempt emergency cervical reduction if given adequate training.

Previously we found that most Western Cape hospitals had inadequate protocols, training, and equipment for cervical reductions. In 2023, more hospitals in the Province have protocols in place for cervical reductions and the same percentage of doctors would attempt emergency cervical reduction with adequate training. However, equipment and training for management of acute cervical dislocations has not improved.

We conclude that most Western Cape Hospitals are unprepared to adequately manage acute cervical dislocations.

Background

Total Hip Arthroplasty (THA) using the Direct Anterior Approach (DAA) is a muscle sparing approach which promotes early mobilisation of patients. It is a technically challenging approach shown to have a high rate of complications, especially during the learning curve. Here we present the results of 157 cases of THA via a DAA on a standard theatre table, with a minimum of 6 months follow-up.

Femoral shaft fractures are fairly common injuries in paediatric age group. The treatment protocols are clear in patients of age less than 4 years and greater than 6 years. The real dilemma lies in the age group of 4–6 years. The aim of this study is to find whether a conservative line should be followed, or a more aggressive surgical intervention can provide significantly better results in these injuries. This study was conducted in a tertiary care hospital in Bhubaneswar, India from January 2020 to March 2021. A total of 40 patients with femur shaft fractures were included and randomly divided in two treatment groups. Group A were treated with a TENS nail while group B were treated with skin traction followed by spica cast. They were regularly followed up with clinical and radiological examination to look out for signs of healing and any complications. TENS was removed at 4–9 months’ time in all Group A patients. Group A patients had a statistically significant less hospital stay, immobilisation period, time to full weight bearing and radiological union. Rotational malunions were significantly lower in Group A (p-value 0.0379) while there was no statistically significant difference in angular malunion in coronal and sagittal plane at final follow up. Complications unique to group A were skin necrosis and infection. We conclude that TENS is better modality for treatment of shaft of femur fractures in patients of 4–6 years age as they significantly reduce the hospital stay, immobilization period and rotational malalignment

Aim. Pin site infection (PSI) is a common complication of external fixators. PSI usually presents as a superficial infection which is treated conservatively. This study investigated those rare cases of PSI requiring surgery due to persistent osteomyelitis (OM), after pin removal. Method. In this retrospective cohort study we identified patients who required surgery for an OM after PSI (Checketts-Otterburn Classification Grade 6) between 2011 and 2021. We investigated patient demographics, aetiology of the OM, pathogen and histology, treatment strategies and complications. Infection was confirmed using the 2018 FRI Consensus Definition. Successful outcome was defined as an infection-free interval of at least 24 months following surgery, which was defined as minimum follow-up. Results. Twenty-seven patients were treated due to a pin site infection with an osteomyelitis (22 tibias, 2 humeri, 2 calcanei, 1 radius). 85% identified as male and the median age was 53.9 years. Eighteen infections followed external fixation of fractures, with 4 cases after Ilizarov deformity correction, 2 cases followed ankle fusion and 3 after traction pin insertion. Fifteen patients were classified as BACH Uncomplicated and 12 were BACH Complex. The median follow-up was 3.99 years (2.00–8.05 years). Staphylococci were the most common pathogens (16 MSSA, 2 MRSA, 2 CNS). Polymicrobial infections were present in 5 cases (19%). All surgery was performed in a single stage following the same protocol at one institution. This included deep sampling, debridement, implantation of local antibiotics, culture-specific systemic antibiotics and soft tissue closure. Seven patients required flap coverage (6 local, 1 free flap), which was performed in the same operation. 25 (93%) patients had a successful outcome after one surgery. Two had recurrence of infection which was successfully treated by repeat of the protocol. One patient suffered a fracture through the operated site after a fall. This healed without infection recurrence. Wound leakage after local antibiotic treatment was seen in 3/27 (11%) of cases. All resolved without treatment. After a minimum of 2 years follow up, all patients were infection free at the site of the former osteomyelitis. Conclusions. OM after PSI is uncommon but has major implications for the patient as 7 out of 27 patients needed flap coverage. This reinforces the need for careful pin placement and pin site care to prevent deep infection. These infections require appropriate surgery, not just curettage. All patients in our cohort were infection-free after a minimum follow-up of 2 years suggesting that this protocol is effective

Arthroscopic hip procedures have increased dramatically over the last decade as equipment and techniques have improved. Patients who require hip arthroscopy for femoroacetabular impingement on occasion require surgery on the contralateral hip. Previous studies have found that younger age of presentation and lower Charlson comorbidity index have higher risk for requiring surgery on the contralateral hip but have not found correlation to anatomic variables. The purpose of this study is to evaluate the factors that predispose a patient to requiring subsequent hip arthroscopy on the contralateral hip. This is an IRB-approved, single surgeon retrospective cohort study from an academic, tertiary referral centre. A chart review was conducted on 310 primary hip arthroscopy procedures from 2009-2020. We identified 62 cases that went on to have a hip arthroscopy on the contralateral side. The bilateral hip arthroscopy cohort was compared to unilateral cohort for sex, age, BMI, pre-op alpha angle and centre edge angle measured on AP pelvis XRay, femoral torsion, traction time, skin to skin time, Tonnis grade, intra-op labral or chondral defect. A p-value <0.05 was deemed significant. Of the 62 patients that required contralateral hip arthroscopy, the average age was 32.7 compared with 37.8 in the unilateral cohort (p = 0.01) and BMI was lower in the bilateral cohort (26.2) compared to the unilateral cohort (27.6) (p=0.04). The average alpha angle was 76.3. 0. in the bilateral compared to 66. 0. in the unilateral cohort (p = 0.01). Skin to skin time was longer in cases in which a contralateral surgery was performed (106.3 mins vs 86.4 mins) (p=0.01). Interestingly, 50 male patients required contralateral hip arthroscopy compared to 12 female patients (p=0.01). No other variables were statistically significant. In conclusion, this study does re-enforce existing literature by stating that younger patients are more likely to require contralateral hip arthroscopy. This may be due to the fact that these patients require increased range of motion from the hip joint to perform activities such as sports where as older patients may not need the same amount of range of motion to perform their activities. Significantly higher alpha angles were noted in patients requiring contralateral hip arthroscopy, which has not been shown in previous literature. This helps to explain that larger CAM deformities will likely require contralateral hip arthroscopy because these patients likely impinge more during simple activities of daily living. Contralateral hip arthroscopy is also more common in male patients who typically have a larger CAM deformity. In summary, this study will help to risk stratify patients who will likely require contralateral hip arthroscopy and should be a discussion point during pre-operative counseling. That offering early subsequent or simultaneous hip arthroscopy in young male patients with large CAMs should be offered when symptoms are mild

Introduction. Despite all modern advances the indications and possibilities of treatment in Legg-Calvé-Perthes Disease (LCPD) are still controversial. In the past 15 years we started using arthrodiastasis of the hip creating negative pressure over the avascular femoral head in some selected cases of LCPD in the active phasis of the disease. Now we present our experience with distraction in LCPD using the original Ilizarov circular frame for the hip. Materials and Methods. From 2015 to 2021, eight patients with LCPD were submoitted to hip distraction; all male ranging from six to 12 years (avg 8.2 years). All patients with bad prognosis, in Catterall Groups III and IV. All patients in the active phasis of the disease. Our follow-up is ranging from two to six years, with an average of 3.4 years. Results. All the preliminary results are good with recovering of range of motion of the affected hip joint in allpatients. After the first month under distraction is possible to observe new bone formation specially in the lateral pillar of the femoral head. Complications were not observed in this group of patients. Conclusions. The main point of this prospective study is to find that is possible to achieve cartilaginous growth on the femoral head stimulated by the traction offered by the external fixator, in a very short period of time. Distraction may be one method for a good treatment in patients aged six years or older with Legg-Calvé-Perthes disease in the active phase of the disease

The purpose of this project was to evaluate North American trauma surgeon preferences regarding patient positioning for antegrade fixation of mid shaft femoral shaft fractures. This project was a cross sectional survey taken of orthopaedic fellows and staff surgeons, belonging to three organizations across North America. An estimated sample size was calculated a priori, while various online techniques were utilized to reduce non responder and fatigue bias. The survey was distributed multiple times to optimize yield. Two hundred twelve (212) participants responded in full, 134 (56%) of whom practiced in Canada. The majority of surgeons worked in level one trauma centres (74%), while 72% treated more than one femoral shaft fracture per week. The most common patient position for mid shaft fixation amongst all surgeons was lateral positioning with manual traction (68%), however community surgeons were significantly more likely to use a fracture table. The most common difficulties faced with using a fracture table were inability to achieve fracture reduction and peroneal nerve palsies. The majority (64%) of surgeons quoted a complication rate with fracture tables of greater than 1 per 100 cases. Lateral position with use of manual traction is the preferred set up for antegrade fixation of femoral shaft fracture in this large North American cohort of trauma surgeons. However, a large subset of community and non academic surgeons still prefer use of the fracture table. Amongst all respondents, a high rate of fracture table complications, including malreduction, were quoted. To date, there is no prospective data comparing these two options for patient positioning, and a randomized controlled trial may be an appropriate next step

Introduction. The shuck test was widely used to assess the overall soft-tissue tension around the hip joint during surgery. There have been few attempts to standardize how one evaluates soft tissue tension in total hip arthroplasty. The aim of this study was to ask how reliable the shuck test was as a measure of soft tissue tension in total hip arthroplasty. Methods. First, we assessed the intra- and inter-examiner variability of the force generated in the shuck test. Next, we asked how the strength of traction forces and joint position on the distance of displacement of the prosthetic head at surgery. Twenty-one hip surgeons, consisting of seven experienced hip surgeons, seven junior hip surgeons, and seven surgeons in training were included in the first study. Test subjects were instructed to pull a traction gauge with their customary range of force. Each subject performed two sets of the shuck test in one week interval. Eighteen patients who had cementless THA through postero-lateral approach using 3D-CT based navigation system were enrolled in the second study. After implantation of components, the leg was pull caudally using our original device [Fig. 1]. The strength of applied traction force was 20 %, 30 %, 40 % and 50 % of body weight of each patient. The distance of displacement of a prosthetic head during traction was recorded at flexion angles of 0, 15, 30 and 45 degrees using the navigation system. Internal or external rotation of legs was controlled within 5 degrees. Results. There was a significant difference among examiners in the range of force generated in shuck test. The mean force was 24.1 kg (SD; 6.4, range; 11 to 35). There was no significant difference in the range of force among experienced, junior surgeons and surgeons in training (p=0.11). Intra-class correlation between the tests and re-tests was 0.8. The distance of displacement of prosthetic heads during traction increased with traction forces significantly (p=0.001). There were significant differences in the distance of displacement of prosthetic heads during traction among flexion angles (p=0.001). The femoral head displaced most at the flexion angle of 15 degrees. Conclusion. There were considerable inter-examiner differences in the range of forces generated by the shuck test. The strength of traction forces and flexion angles influenced significantly the distance of displacement of prosthetic heads. It is necessary to standardize the strength of traction forces and flexion angles in order to make the shuck test reliable

Introduction. The incidence of dislocation after total hip arthroplasty (THA) was reported to be 0.5 to 10% in primary THA and 10 to 25 % in revision THA. The main causes of instability after THA were reported to be implant malalignment and inappropriate soft tissue tension. However, there was no study about quantitative data of soft tissue tension of unstable THA. The purpose of this study is to clarify the features of soft tissue tension of unstable THA in comparison to stable THA. Methods. The subjects were 15 patients with 15 THAs who had developed recurrent dislocation after primary THA. Thirty four patients with 37 THAs who developed no dislocation for one year after surgery were recruited as a stable THA group. In both group, all THAs were performed through posterolateral approach. In order to assess the soft tissue tension of THA, we recorded antero-posterior radiographs of the hips while applying distal traction to the leg with traction forces of 20?, 30%, 40% of body weight (BW). The distance of separation of the head and the cup after traction was measured under correction of magnification. Nine of 15 THAs in the unstable THA group and 32 of 37 THAs in the stable THA group were unilateral involvement. In the hips with unilateral involvement, the femoral offset difference between the healthy hip and the reconstructed hip were evaluated. Statistical analysis was performed with χ2 testand Mann-Whitney U test, and statistical significance was set at P<0.05. Results and Discussion. The average separation distance of the head and the cup was 5.2 ± 3.4mm (SD) at 40%BW, 4.3±3.2mm at 30%BW, and 3.2±2.8mm at 20%BW in the unstable THA group. The average separation distance of the head and the cup was 1.4±1.5mm at 40%BW, 1.1±1.4mm at 30%BW, and 0.9±1.2mm at 20%BW in the stable THA group. There were statistically significant differences in the separation distance between the groups in all ranges of traction force. The femoral offset difference between the operated side and the healthy side was −1.2±5.6mm in the unstable THA group and 3.1±4.8mm in the stable THA group. There were no significant difference in the femoral offset difference, however the femoral offset tends to be small in the unstable THA group compared to the stable THA group (P=0.05). The leg length discrepancy was −3.1±11.6mm in the unstable THA group and 2.7±7.1mm in the stable THA group. There were no significant difference in the leg length discrepancy (P=0.12). Conclusion. The separation distance of the head and the cup during leg distal traction in the unstable THA group is about four times larger than that in the stable THA group. The femoral offset tended to be smaller in the unstable THA group compared to the stable THA group

Methods. A pericapsular approach was used with capsulotomy and then correction of the lesions both in the pelvic and in the femoral aspects. The traction times and total surgery times for the conventional method and the new out-inside technique were compared. Results. Conventional Hip Arthroscopy. –. 61 Hips done. –. Total surgery time was 110 minutes. –. Traction time was 50 minutes. –. 6 Weeks non weight bearing. New out-inside technique of hip arthroscopy. –. 24 Hips done. –. Total surgery time was 90 minutes. –. Traction time was 20 minutes. –. 4 weeks non weight bearing. New out-inside technique – E Margalet results. –. 68 Hips done. –. Total surgery time was 80.5 minutes. –. Traction time was 18.2 minutes. –. 3-4 weeks non weight bearing. Conclusion. Hip arthroscopy for femoral-acetabular impingement involves time spent working on the central and peripheral compartment. This new therapeutic approach requires a less aggressive exposure and is technically easier than conventional arthroscopy. A 30 degree optic system and shoulder and knee arthroscopic instruments were used without the need for fluoroscopy and the 70 degree optic was only used in the central compartment. No new surgical portals are used but rather a new surgical approach. It is important to note that new surgical complications need to be considered in this method. Outcomes are variable regarding pain and full recovery to normal previous activity of each patient. NO DISCLOSURES

Certain acetabular fractures involve impaction of the weight-bearing dome and medialisation of the femoral head. Intra-operative fracture reduction is made easier by traction on the limb, ideally in line with the femoral neck (lateral traction). However, holding this lateral traction throughout surgery is very difficult for a tiring assistant. We detail a previously undescribed technique of providing intra-operative lateral femoral head traction via a pelvic reduction frame, to aid fixation of difficult acetabular fractures. The first 10 consecutive cases are reviewed (Group 1) and compared with a retrospective control (Group 2, n=18) of case-matched patients, treated prior to introducing the technique. The post-operative X-rays and CT scans were assessed to identify quality of fracture reduction according to the criteria of Tornetta and Matta. Operative time, blood loss and early complication rates were also compared. All cases in both groups were acute injuries with medial and/or superior migration of the femoral head. The majority were either associated both column or anterior column posterior hemi-transverse. There was no statistical difference between the groups in age, time to surgery, BMI or ASA grade. Fracture reduction was assessed as excellent in seven, good in three and poor in one. This was not significantly different from the control group (p=0.093). The mean operative time was 232 minutes in Group 1 and 332.78 minutes in Group 2 (p = 0.0015). There was no difference between the groups for blood loss or complication rates. We conclude that this new technique is at least equivalent to using manual traction and early results suggest it reduces operative time and technical difficulty in treating these complex acetabular fractures

INTRODUCTION:. A discrepancy exists between biomechanical and clinical outcome studies when comparing cruciate-retaining (CR) versus posterior stabilized (PS) component designs. The purpose of this study is to re-evaluate experimental model results using half-body specimens with intact extensor mechanisms and navigation to evaluate PS and CR component gaps though an entire range of motion. METHODS:. A custom-designed knee testing apparatus was used for secure anchoring of the lower half of cadaver pelvic, allowing full range of knee motion and the application of traction throughout that range. Eight sequential testing regimens: were conducted with knee intact, with CR TKA in place, with PS TKA with quadriceps tendon in place, with PS TKA with sectioned quadriceps tendon in place, with and without traction at each stage. At each stage, a navigated knee system with dedicated software was used to record component gapping through a full range of motion from 0° to 120°. The amount of traction used was 22N. Each knee (n = 10) was taken through 6 full ranges of motion at every stage. At each stage, corroboration of navigation findings was attempted using a modified gap balancer to take static gap measurements at 0° and 90° with 12 in. lbs of torque was applied. RESULTS:. The difference in component gapping between CR and PS knees resulted in a range from −0.85 mm to 0.62 mm. The range of component gapping was from −0.67 mm to 0.70 mm with both constructs under 22N traction load. There was no significant difference between loaded and unloaded component gaps, and there were no statistically significant differences in component gapping between CR and PS knees throughout a full range of motion. Static flexion-extension gap measurements, were significantly different from previously published data, notably at in 90° flexion gap measurement. The comparison of the sectioned unloaded and sectioned loaded quadriceps tendon constructs gave a range of distraction of tibio-femoral gaps from 1.85 to 5.22 mm and 1.46 to 4.60 mm, respectively. These measurements were significantly increased over previously reported findings. CONCLUSION:. There was no significant difference between the CR and PS TKA designs with respect to component gapping when measured through a complete range of motion with an intact extensor mechanism. This data contradicts earlier results, obtained from less complete specimens, and correlates with clinical studies which show no gap differences in CR and PS knees. We conclude that the sectioned quadriceps tendon influences knee flexion-extension gaps in a PS TKA construct model. This finding suggests that intact extensor mechanisms may be required to perform proper kinematic studies of TKA, and this may be a contributing factor in the discrepancies observed between previous biomechanical and clinical outcome studies. Clinical Relevance: The findings of this study may solve the controversy regarding differences of the CR and PS TKA designs observed using biomechanical models

Purpose. Instability following total hip arthroplasty (THA) is an unfortunately frequent and serious problem that requires through evaluation and preoperative planning before surgical intervention. Prevention through optimal index surgery is of great importance, as the management of an unstable THA is challenging even for an experienced joints surgeon. However, even after well-planned surgery, a significant incidence of recurrent instability still exists. As you know Sir John Charnley is one of the first orthopaedic surgeons to address the issue of soft-tissue tensioning (STT) in the THA. Moreover leg-length discrepancy (LLD) after THA can pose a substantial problem for the orthopaedic surgeon. Such discrepancy has been associated with complications including nerve palsy, low back pain, and abnormal gait. The objective of this study is to assess hip instability of three different FOs in same patient undergoing THA during an operation. Methods. We performed 70 patients who had undergone unilateral THA using CT based navigation system at a single institution for advanced osteoarthoritis from May 2013 to May 2014. We used postero-lateral approach in all patients. After cup and stem implantation, we assessed soft tissue tensioning in THA during operation. Trial necks were categorized into one of three groups: standard femoral offset (sFO), high femoral offset (hFO, +4mm compared to sFO) and extensive high femoral offset (ehFO, +8 mm compared to sFO). We measured distance of lift-off about each of three femoral necks using CT based navigation system and a force gauge with hip flexed at 0 degrees and 30 degrees under a traction of lower extremity. Traction force was 40% of body weight. Results. Forty patients had leg length restored to within +/− 5mm of the contralateral side by post-operative CT analysis. We examined these patients. Traction force was 214±41.1Nm. The distances of lift-off were 8.8±4.5mm (sFO), 7.4±4.1mm (eFO), 5.1±3.9mm (ehFO) with 0 degrees hip flexion and neutral abduction(Abd) / adduction(Add) and neutral internal rotation(IR)/external rotation(ER). The distance of lift-off were 11.5±5.9mm (sFO), 10.5±5.5mm (eFO),ã��9.1±5.9mm (ehFO) with 30 degrees hip flexion and neutral Abd / Add and neutral IR/ER. Significant difference was observed between 0 degrees hip flexion and 30 degrees hip flexion on each FO (p<0.05). On changing the distance of lift-off, hFO to ehFO (2.2±1.6mm) was more stable than sFO to hFO (1.4±1.7mm)with 0degrees hip flexion.(p<0.05). On the other hands, hFO to ehFO (1.4±1.6mm) was more stable than sFO to hFO (1.0±1.3mm) with 30 degrees hip flexion. However, we did not find significant difference (p=0.18). Conclusion. Hip instability was found at 30 degrees hip flexion more than at 0 degrees hip flexion. We found that changing from eFO to ehFO can lead to more stability improvement of soft tissue tensioning than sFO to eFO, especially at 0 degrees hip flexion

Paediatric femoral fractures are a common result of significant trauma, and always require intervention. Hip spica casting, traction, and surgical fixation can all be used to treat these fractures. This variety in treatment options leads to a vast potential for variability in management decisions among surgeons and has prevented effective comparative studies to show which treatment methods provide optimal outcomes for patients. The purpose of this study was to identify practice variability in management and follow-up and assess patient outcomes to aid in the development of a comprehensive, prospective, evidence-based pathway for the management of paediatric femoral fractures. A retrospective chart review was performed of all patients treated surgically for isolated femoral fractures during a six year period at a single tertiary care paediatric centre. Patients were identified from a surgical database and were included if there was no pre-existing pathology and no history of previous femoral fracture. Demographic data, operative details, post-operative management, and clinical outcomes were collected. Radiographic images and reports were analyzed to determine fracture classification and imaging parameters. Variability in treatment among eight surgeons was assessed, including number of follow-up appointments and length of follow-up. Patient demographics and follow up measures were summarised for each surgeon and between surgeon variability was assessed with linear models. In total, 138 femoral fractures in 134 patients (101 male, 33 female) were included in analysis. Of these patients, 55 had right femoral fractures, 76 left, and three bilateral (one bilateral patient had three distinct femoral fractures). Of 138 total fractures, 131 were of the diaphysis of the femur. 14 patients sought initial surgical treatment at our institution but received follow-up management elsewhere. Across all patients, median follow-up time was 32.8 weeks (0–201.4) with a median of three follow-up visits (0–26) in that period. Mean number of follow-up clinic visits ranged from 3 to 4.8 among surgeons, and mean length of follow-up ranged from 31.8 to 62.3 weeks. No significant differences in follow-up between surgeons were found, but small sample sizes are a likely contributing factor. Summary statistics show large ranges in most variables and differences in patient demographics between surgeon groups. The large ranges in follow-up time and visit number suggest a lack of consensus on optimal management for paediatric femoral fractures. Further prospective study examining long-term functional and quality of life outcomes will be required to identify and develop optimized management guidelines

INTRODUCTION. Proponents of the THA anterior approach have advocated for the use of dedicated surgical tables similar to those used in lower extremity fracture care that allow for traction, rotation, and angulation of the limb during surgery. Some tables require a specially-trained assistant to manipulate the table, whereas some may be manipulated by the surgeon. The purpose of this study is to compare the clinical outcomes in patients who underwent THA through an anterior approach on an assistant-controlled (AC) versus a surgeon-controlled (SC) table. METHODS. This is a retrospective study of 343 consecutive THA patients from January 2017 – October 2017. Surgical and clinical data included surgical time, LOS, presence of pain (groin, hip, or thigh pain) at latest follow-up, and revision for any reason. Immediate postoperative radiographs were compared with latest follow-up radiographs to assess for LLD, stem alignment, and stem subsidence. RESULTS. 167 (48.7%) cases were performed using the AC table, and 176 (51.3%) were performed using the SC table. Overall, surgical time was significantly greater for surgeries which utilized the self-controlled table (70.2 minutes vs. 66.1 minutes, respectively). There was a statistically significant difference between the first and last third of cases performed on the SC table (73.6 minutes vs. 68.0 minutes, respectively). There were no significant differences in any clinical or radiographic outcomes. DISCUSSION. Surgeons who routinely perform an anterior approach for THA can expect similar outcomes using an SC table as opposed to an AC table. Although surgical time with the SC table was longer by approximately four minutes, this difference is not clinically significant. In addition, surgical time with the SC table may be decreased following an initial learning curve. The SC table allows for greater surgeon control during the procedure and a significantly smaller institutional financial investment due to the reduced manpower required

Aims

The evidence base within trauma and orthopaedics has traditionally favoured quantitative research methodologies. Qualitative research can provide unique insights which illuminate patient experiences and perceptions of care. Qualitative methods reveal the subjective narratives of patients that are not captured by quantitative data, providing a more comprehensive understanding of patient-centred care. The aim of this study is to quantify the level of qualitative research within the orthopaedic literature.