We treated 108 patients with a pertrochanteric femoral fracture using either the dynamic hip screw or the proximal femoral nail in this prospective, randomised series. We compared walking ability before fracture, intra-operative variables and return to their residence. Patients treated with the proximal femoral nail (n = 42) had regained their pre-operative walking ability significantly (p = 0.04) more often by the four-month review than those treated with the dynamic hip screw (n = 41). Peri-operative or immediate post-operative measures of outcome did not differ between the groups, with the exception of operation time. The dynamic hip screw allowed a significantly greater compression of the fracture during the four-month follow-up, but consolidation of the fracture was comparable between the two groups. Two major losses of reduction were observed in each group, resulting in a total of four revision operations. Our results suggest that the use of the proximal femoral nail may allow a faster postoperative restoration of walking ability, when compared with the dynamic hip screw

Retrograde femoral nailing is gaining in popularity. We report a prospective, randomised comparison of antegrade and retrograde procedures in 68 patients with 69 fractures of the femoral shaft. All nails were inserted after appropriate reaming. There was no difference in operating time, blood loss, technical complications, size of nail or reamer, or transfusion requirements. There were more problems of length and rotation using a retrograde technique on a radiolucent table than with an antegrade approach on a fracture table. All fractures in both groups healed and there was no difference in the time taken to achieve union. Although retrograde nailing is a promising technique the skills required need practice. A longer period of follow-up is necessary to determine whether there are long-term problems in the knee after such surgery

PURPOSE. To evaluate the late radiographic and functional complications occurring after treatment of reverse oblique trochanteric fractures with the proximal femoral nail. PATIENTS. This is a retrospective study which was conducted between October 2004 and October 2009. 55 patients with a reverse oblique trochanteric fracture were treated with the Gamma 3 nail. According to the AO classification, there were 36 type AIII-1, 8 AIII-2, 11 AIII-3 fractures. Closed reduction was achieved in all patients. The long gamma 3 nail was used in 34 fractures. The mean follow up was 18 months (range 9 to 32 months). The patients were evaluated clinically (Harris hip score) and radiographically. RESULTS. No intraoperative complications were recorded. During surgery, satisfactory reduction and acceptable nail insertion was assessed in all patients. No early postoperative technical failures were noticed. Complete union was achieved in 51 patients. The mean Harris hip score was 80.2. The results were excellent in 23 patients (41.8%), good in 19 (34.5%), fair in 9 (16.3%), and poor in 4 patients (7%). Late radiographic complications included secondary varus displacement due to cut-out of the proximal screw in three patients (5.4%), and calcification at the tip of the greater trochanter in nine patients (16%). Stress shielding as evidenced by the lack of cortical hypertrophy at the level of the tip of the implant were detected in 5 patients. Patients treated with a long gamma 3 nail achieved a statistically significant better result (p< 0.005). Three patients (5.5%) required a reconstructive procedure. CONCLUSION. Proximal femoral nailing provides stronger fixation of the proximal part in reverse oblique trochanteric fractures reducing mechanical complications. The implant choice, the accuracy of fracture reduction, and the correct placement of the nail are the key factors influencing the final outcome

Objectives. Because of the contradictory body of evidence related to the potential benefits of helical blades in trochanteric fracture fixation, we studied the effect of bone compaction resulting from the insertion of a proximal femoral nail anti-rotation (PFNA). . Methods. We developed a subject-specific computational model of a trochanteric fracture (31-A2 in the AO classification) with lack of medial support and varied the bone density to account for variability in bone properties among hip fracture patients. Results. We show that for a bone density corresponding to 100% of the bone density of the cadaveric femur, there does not seem to be any advantage in using a PFNA with respect to the risk of blade cut-out. On the other hand, in a more osteoporotic femoral head characterised by a density corresponding to 75% of the initial bone density, local bone compaction around the helical blade provides additional bone purchase, thereby decreasing the risk of cut-out, as quantified by the volume of bone susceptible to yielding. Conclusions. Our findings indicate benefits of using a PFNA over an intramedullary nail with a conventional lag screw and suggest that any clinical trial reporting surgical outcomes regarding the use of helical blades should include a measure of the femoral head bone density as a covariable

We performed a randomised, prospective trial to evaluate the use of unreamed titanium nails for femoral fractures. Of 48 patients with 50 femoral fractures 45 were followed to union; 23 with an unreamed and 22 with a reamed nail. The study was stopped early because of a high rate of implant failure.

The fractures in the unreamed group were slower to unite (39.4 weeks) than those in the reamed group (28.5 weeks; p = 0.007). The time to union was over nine months in 57% of the unreamed group and in 18% of the reamed group.

In the unreamed group 14 secondary procedures were required in ten patients to enhance healing compared with three in three patients in the reamed group. Six implants (13%) failed, three in each group. Four of these six fractures showed evidence of delayed union.

To achieve quicker union and fewer implant failures we recommend the use of reamed nails of at least 12 mm in diameter for female patients and 13 mm in males.

Introduction

When translating the principle of intramedullary nailing for trochanteric femoral fractures to Asian patients, design modifications made to adjust for anatomic differences resulted in an PFNA Asia. The primary endpoint of this study was the rate of complications attributable to fracture fixation.

Aims

Proximal femur fractures treatment can involve anterograde nailing with a single or double cephalic screw. An undesirable failure for this fixation is screw cut-out. In a single-screw nail, a tip-apex distance (TAD) greater than 25 mm has been associated with an increased risk of cut-out. The aim of the study was to examine the role of TAD as a risk factor in a cephalic double-screw nail.

Intramedullary nails are a well accepted method of fixing fractures of the femur, however there are several potential complications associated with femoral nail insertion. One under-reported complication is perforation of the anterior cortex of the distal femur. Cortical perforation is well documented in immature bone however there is little evidence of perforation in skeletally mature adults. We present a 5 year retrospective clinical audit into correct positioning of the TriGen™ intramedullary nail system (Smith & Nephew Inc.), with respect to determining the anterior cortex perforation rate. Cases were identified using searches of the electronic operation notes, followed by manual cross checking of the reference numbers of the implants used. The radiographs for each case were then checked to identify cases of distal anterior cortex perforation. 138 femoral nails were inserted over the 5 years 2005–2010 at our institution. 79 cases met the inclusion criteria, of which 8 were deemed to show radiological evidence of cortical perforation on lateral view, this represents a perforation rate of 10.1% in this population. There was also a significant difference in the mean age of the perforated vs non-perforated groups (80.1 vs 62.1 yrs respectively). These results are at odds with the current literature which reports few or no cases of cortical perforation. As a result of this audit we have made various recommendations for future practice. This study highlights a need for larger scale randomised trials to be carried out in the future

We investigated a new intramedullary locking nail that allows the distal interlocking screws to be locked to the nail. We compared fixation using this new implant with fixation using either a conventional nail or a locking plate in a laboratory simulation of an osteoporotic fracture of the distal femur. A total of 15 human cadaver femora were used to simulate an AO 33-A3 fracture pattern. Paired specimens compared fixation using either a locking or non-locking retrograde nail, and using either a locking retrograde nail or a locking plate. The constructs underwent cyclical loading to simulate single-leg stance up to 125 000 cycles. Axial and torsional stiffness and displacement, cycles to failure and modes of failure were recorded for each specimen. When compared with locking plate constructs, locking nail constructs had significantly longer mean fatigue life (75 800 cycles (. sd. 33 900) vs 12 800 cycles (. sd. 6100); p = 0.007) and mean axial stiffness (220 N/mm (. sd. 80) vs 70 N/mm (. sd. 18); p = 0.005), but lower mean torsional stiffness (2.5 Nm/° (. sd. 0.9) vs 5.1 Nm/° (. sd. 1.5); p = 0.008). In addition, in the nail group the mode of failure was either cut-out of the distal screws or breakage of nails, and in the locking plate group breakage of the plate was always the mode of failure. Locking nail constructs had significantly longer mean fatigue life than non-locking nail constructs (78 900 cycles (. sd. 25 600) vs 52 400 cycles (. sd. 22 500); p = 0.04). The new locking retrograde femoral nail showed better stiffness and fatigue life than locking plates, and superior fatigue life to non-locking nails, which may be advantageous in elderly patients. Cite this article: Bone Joint J 2014;96-B:114–21

Aim. Aim of this study was to review surgical treatment of femural metastases, comparing nailing versus resection and prosthetic reconstruction. Method. Between 1975 and 2008 110 patients were surgically treated for metastatic disease of the femur. Prostheses were implanted in 57 cases (16 HMRS® Stryker, 38 MRP® Bioimpianti, 2 Osteobridge® and 1 GMRS®). In 53 patients femoral nailing was performed with different types of locked nails (32 Gamma, 14 Grosse-Kempft and 6 T2-Stryker®). Sites of primary tumor were breast (33 cases), kidney (18), lung (17), undifferentiated carcinoma (14), g.i. (8), bladder and prostate (5 each), endometrium and thyroid (3 each), skin (2), pheochromocytoma and pancreas (1 each). Indications to nails were given in patients with femoral metastasis and poor prognosis: multiple metastases, short free interval, unfavourable histotype, poor general conditions. Resection and prosthesis was preferred for patients with solitary metastasis, long free interval, favourable histotype, good general conditions or in whenever the extent of the lesion was not amenable to a durable internal fixation. Complications were analysed. Univariate analysis by Kaplan-Meier curves of implant and oncological survival was performed. Functional results were assessed with MSTS system. Results. Outcome showed: 23 AWD at mean 52 months, 57 DWD at mean 9 months, 30 lost to follow up. Survival in patients treated with femoral nailing was about 10% at 5 years versus 20% for patients treated with resection. Patients with resections had a better survival curve at 2 years. Complications were: infections (4/110, 3.7%), aseptic loosening (1/110, 1%). Statistical analysis showed a significantly better survival for patients resected versus those treated by internal fixation (p=0.0214). Multivariate analysis indicated that pathologic fracture is the only significant adverse prognostic factor (p=0.006). Conclusion. Internal fixation is indicated in patients with multiple metastases and poor prognosis. When expected survival is longer and there is a solitary metastasis a resection is preferable. Indications of resections are progressively increasing due to newer medical treatment giving longer survival to metastatic patients

Introduction. Unstable intertrochanteric hip fractures (AO 31A2) continue to be a challenge, as non-locking implants have shown a considerable rate of loss of reduction. Intramedullary fixation has been recommended, although screw cut-out has been identified as problematic. This study was performed to ascertain whether treatments with the established proximal femoral nail (PFN) and the newer PFNA with blade design (proximal femoral nail antirotation) have advantages over the use of the Percutaneous Compression Plate (PCCP, developed by Gotfried). Methods. Cohort study. Between March 2003 and March 2008, 134 patients with unstable fractures were treated with a PCCP, (n=44, 78.3 yrs, ASA 2.8), a PFN (n=50, 77.2 yrs, ASA 2.8), or a PFNA (n=40, 75.8 yrs, ASA 2.6). The patients (31 PCCP, 33 PFN, 30 PFNA) were then reexamined clinically and radiologically after approximately 21 months. Results. The PCCP was found to require less implantation time than the PFN and the PFNA (60 vs. 80 vs. 84 min, p<0.001) and less radiation exposition time (PCCP 139 vs. PFN 283 vs. PFNA 188 seconds, p<0.001). The rate of reoperations due to wound infections and hematomas amounted to 2% for the PCCP, 4% for the PFN, and 5% for the PFNA (p=0.799). Due to mechanical complications, 9% of patients implanted with a PCCP, 13% of those implanted with a PFN, and 5% of those implanted with a PFNA had to be reoperated (p=0.353). The cut-out rate was 2% after implantation of the PCCP, 4% after the PFN, and 5% after implantation of the PFNA (p=0.799). In one case, the shaft was fractured intraoperatively (PFNA). The tip-apex distance for the lower femoral neck screw (PCCP 22mm vs. PFN 30mm vs. PFNA 30mm, p<0.001), stress-related varisation of the collodiaphyseal (CCD) angle (4° for all implants), impaction (PCCP 5mm vs. PFN 5mm vs. PFNA 6mm, p=0.662) and femoral shortening (PCCP 3mm vs. PFN 3mm vs. PFNA 4mm, p=0.876) were not determinants of the postoperative function. On the basis of their scores according to Merle d'Aubigné and Harris, there was no variation in the results of the follow-up examinations. Conclusions. The use of the PCCP for the treatment of unstable trochanteric fractures presents a minimally invasive method of implantation, as well as a promising therapy option with regards to operation time, radiologic examination time, and rate of complications. Processes of impaction due to stress are seldom observed. No benefits could be established in an intramedullary treatment with the PFN or the PFNA; thus, it appears that the higher cost of these implants is avoidable

Aims

The aim of this study was to assess the safety and clinical outcome of patients with a femoral shaft fracture and a previous complex post-traumatic femoral malunion who were treated with a clamshell osteotomy and fixation with an intramedullary nail (IMN).

Aims

Femoral periprosthetic fractures are rising in incidence. Their management is complex and carries a high associated mortality. Unlike native hip fractures, there are no guidelines advising on time to theatre in this group. We aim to determine whether delaying surgical intervention influences morbidity or mortality in femoral periprosthetic fractures.

Aims

Musculoskeletal infection is a devastating complication in both trauma and elective orthopaedic surgeries that can result in significant morbidity. Aim of this study was to assess the effectiveness and complications of local antibiotic impregnated dissolvable synthetic calcium sulphate beads (Stimulan Rapid Cure) in the hands of different surgeons from multiple centres in surgically managed bone and joint infections.

Simulation in surgical training has become a key component of surgical training curricula, mandated by the GMC, however commercial tools are often expensive. As training budgets become increasingly pressurised, low-cost innovative simulation tools become desirable. We present the results of a low-cost, high-fidelity simulator developed in-house for teaching fluoroscopic guidewire insertion. A guidewire is placed in a 3d-printed plastic bone using simulated fluoroscopy. Custom software enables two inexpensive web cameras and an infra-red led marker to function as an accurate computer navigation system. This enables high quality simulated fluoroscopic images to be generated from the original CT scan from which the bone model is derived and measured guidewire position. Data including time taken, number of simulated radiographs required and final measurements such as tip apex distance (TAD) are collected. The simulator was validated using a DHS model and integrated assessment tool. TAD improved from 16.8mm to 6.6mm (p=0.001, n=9) in inexperienced trainees, and time taken from 4:25s to 2m59s (p=0.011). A control group of experienced surgeons showed no improvement but better starting points in TAD, time taken and number of radiographs. We have also simulated cannulated hip screws, femoral nail entry point and SUFE, but the system has potential for simulating any procedure requiring fluoroscopic guidewire placement e.g. pedicle screws or pelvic fixation. The low cost and 3D-printable nature have enabled multiple copies to be built. The software is open source allowing replication by any interested party. The simulator has been incorporated successfully into a higher orthopaedic surgical training program

Introduction. The treatment of trochanteric femoral fractures with the use of short femoral nails has become an established method. The fixation is required that lag screw be centered to prevent complications. But correct positioning of the device may difficult because of anatomical feature. This study evaluated the femoral morphology three-dimensionally using computed tomography (CT) images. Methods. Seventy eight patients (mean age 75)who underwent total knee arthroplasty were included. After three-dimensional reconstruction of the CT images, the anterior deviation from the femoral neck axis to proximal shaft axis was measured. The proximal shaft axis was defined as a line between center of the cross-section underneath the lesser trochanter and the center of diaphysis. The connection of center in narrow section of the neck and femoral head center was defined as neck axis. Results. The femoral neck axis and shaft axis were not coplanar. The anterior deviation of the axes was 7.5 mm (1.7 to 18.4 mm). The neck-shaft angle was 124° (110–142°). Discussion. Our results indicate that the nail and screw could not be center in current nail system, because of the non-crossing of the femoral axes. The large variation of neck-shaft angle would lead error in preoperative planning using traditional 2-D template system. Our study suggests needs for three-dimensional template system and newly femoral nail device

Introduction. For the increasing number of frail elderly patients in Japan, mobility is crucial to stay independent and maintain quality of life. After failure reports with standard implants, a prospective multicentre study was performed to evaluate whether an implant designed for Asians enables rapid recovery after unstable trochanteric fractures. Materials and methods. Patients with an AO 31A2 or A3 fracture sustained less than 7 days before fracture fixation with the Asian version of the Proximal Femoral Nail Antirotation. Those with severe dementia and bedridden or confined to a wheelchair were excluded. Outcome parameters were quality of life (SF36v2, EQ5D), mobility (Parker Mobility score PMS) and range of motion (ROM). Results. Median age of the 176 pat. was 84 yrs; 88% had comorbidities, 25% were underweight/severely underweight. After 1 year, mean relative ROM was 90% for flex/ext, 88% for abd/add compared to the healthy side. Although the median PMS decreased from initial 9 to 6 points at 1 year, 42% returned to within 1 point of their pre-injury level. 60% and 76% returned to their pre-injury residential status at 6 and 12 months, resp. 43% and 65% of patients at 1-year had no problems with their mobility and self-care assessed with the EQ5D. All 8 SF36 dimensions were similar at pre-injury, 6 and 12 months. Discussion. Frail elderly patients can achieve good function and quality of life after a trochanteric fracture treated with a size and geometry adapted implant

Rotational deformity following intramedullary nailing may cause symptoms and require surgical correction by osteotomy. Reamed, locked intramedullary nailing may be performed, but concern about cortical blood supply and potential pulmonary dysfunction from reaming have led many surgeons to limit this and use smaller diameter nails. Slotted nails are commonly used but are less stiff in torsion than the newer unslotted nails, particularly at the lower diameters. We report two cased of recurrent femoral rotational deformity after using statically interlocked slotted intramedullary nails to correct existing femoral rotational deformities. These patients show that small diameter statically interlocked femoral nails with diminished bone-nail contact must be stiff enough in rotation to avoid potential recurrence

The proximal femoral nail (PFN) is a recently introduced intramedullary system, designed to improve treatment of unstable trochanteric fractures of the hip. In a multicentre prospective clinical study, the intra-operative use, complications and outcome of treatment using the PFN (n = 211) were compared with those using the gamma nail (GN) (n = 213). The intra-operative blood loss was lower with the PFN (220 ml v 287 ml, p = 0.001). Post-operatively, more lateral protrusion of the hip screws of the PFN (7.6%) was documented, compared with the gamma nail (1.6%, p = 0.02). Most local complications were related to suboptimal reduction of the fracture and/or positioning of the implant. Functional outcome and consolidation were equal for both implants. Generally, the results of treatment of unstable trochanteric fractures were comparable for the PFN and GN. The pitfalls and complications were similar, and mainly surgeon- or fracture-related, rather than implant-related

INTRODUCTION. Short femoral nail is the most popular instrumentation for femoral trochanteric fractures. PFNA is in widely use and good results are reported. In these papers, fracture classification and evaluation of surgical results were based on plain X-ray. However, some cases of delayed union, non-union, and blade cut out showed no critical problems in immediate postoperative X-ray. Cause of these complications was not able to solve in X-ray analysis. CT scan provides more information about fracture pattern and position of nail and blade. CT analysis is likely to solve the cause of these complications. MATERIALS & METHODS. 20 cases of 36 femoral trochanteric fractures treated with PFNA-II were evaluated by CT scan (pre and post surgery). Four males and 16 females, and average age at surgery was 80.5 (65–100). Eleven cases were A1 fracture and 9 cases were A2 fracture in AO classification. Nail insertion hole was made by custom made Hollow Reamer. Fracture classification with 3D-CT (Nakano's classification), position of nail insertion hole (relationship between neck or head), and postoperative evaluation with 3D-CT insertion part of nail and blade were investigated. RESULTS. Nakano classified femoral trochanteric fracture into 7 types in 3D-CT. Two subtype in 2 part fracture, 4 subtype in 3 part fracture and 4part fracture. Seven cases were two part fracture, 11 were three part, and 2 were four part in our series. Five cases of 11 in 3 part fracture was considered unstable type. Nail insertion hole of six cases was made posteriory to the connecting line between neck center and head center. Fracture line of greater trochnater in lateral wall opened in 4 cases because of nail insertion. DISCUSSION. Femoral trochanteric fracture was classified by Evans classification or AO classification. However, it is very difficult to classify the fracture by plain X-P. Classification with 3D-CT is very usefull to distinguish which the fracture is stable or unstable. CT analysis will solve the postoperative complications in stable type in X-P classification