We compared the intracompartmental pressures (ICPs) of open and closed tibial fractures with the same injury pattern in a rabbit model. In all, 20 six-month-old New Zealand White male rabbits were used. They were randomised into two equal groups of ten rabbits; an open fracture group (group 1) and a closed fracture group (group 2). Each anaesthetised rabbit was subjected to a standardised fracture of the proximal half of the right tibia using a custom-made device. In order to create a grade II open fracture in group 1, a 10 mm segment of fascia and periosteum was excised. The ICP in the anterior compartment was monitored at six-hourly intervals for 48 hours. Although there was a statistically significant difference in ICP values within each group (both p < 0.001), there was no significant difference between the groups for all measurements (all p ≥ 0.089). In addition, in both groups there was a statistically significant increase in ICP within the first 24 hours, whereas there was a statistically significant decrease within the second 24 hours (p < 0.001 for both groups). We conclude that open tibial fractures should be monitored for the development of acute compartment syndrome to the same extent as closed fractures. Cite this paper: Bone Joint J 2013;95-B:111–14

Aims. This study assessed the association of classes of body mass index in kg/m. 2. (classified as normal weight 18.5 kg/m. 2 . to 24.9 kg/m. 2. , overweight 25.0 kg/m. 2 . to 29.9 kg/m. 2. , and obese ≥ 30.0 kg/m. 2. ) with short-term complications and functional outcomes three to six years post-operatively for closed ankle fractures. Patients and Methods. We performed a historical cohort study with chart review of 1011 patients who were treated for ankle fractures by open reduction and internal fixation in two hospitals, with a follow-up postal survey of 959 of the patients using three functional outcome scores. Results. Obese patients had more severe overall complications and higher odds of any complication than the normal weight group, with adjusted odds ratio 1.67 (95% confidence interval (CI) 1.08 to 2.59; p = 0.021) and 1.71 (95% CI 1.10 to 2.65; p = 0.016), respectively. In total 479 patients (54.6%) responded to the questionnaire. Obese patients had worse scores on the Olerud and Molander Ankle Score (p < 0.001), Self-Reported Foot and Ankle Questionnaire (p = 0.003) and Lower Extremity Functional Scale (p = 0.01) than those with normal weight. In contrast, overweight patients did not have worse functional scores than those with normal weight. Conclusion. Obese patients had more complications, more severe complications, and worse functional outcomes three to six years after ankle surgery compared with those with normal weight. Cite this article: Bone Joint J 2017;99-B:1389–98

Objectives

One commonly used rat fracture model for bone and mineral research is a closed mid-shaft femur fracture as described by Bonnarens in 1984. Initially, this model was believed to create very reproducible fractures. However, there have been frequent reports of comminution and varying rates of complication. Given the importance of precise anticipation of those characteristics in laboratory research, we aimed to precisely estimate the rate of comminution, its importance and its effect on the amount of soft callus created. Furthermore, we aimed to precisely report the rate of complications such as death and infection.

We reviewed 27 diabetic patients who sustained a tibial fracture treated with a reamed intramedullary nail and compared them with a control group who did not have diabetes. There were 23 closed fractures and four were open. Union was delayed until after six months in 12 of the 23 (52%) diabetic patients with closed fractures and ten of the 23 (43%) control patients (p = 0.768). In two patients with diabetes (9%), closed tibial fractures failed to unite and required exchange nailing, whereas all closed fractures in the control group healed without further surgery (p = 0.489). In both the diabetic and control groups with closed fractures two patients (9%) developed superficial infections. There were two (9%) deep infections in diabetic patients with closed fractures, but none in the control group (p = 0.489). Overall, there was no significant difference in the rate of complications between the diabetic patients and the control group, but there was a tendency for more severe infections in patients with diabetes

Aims. Osteopetrosis (OP) is a rare hereditary disease that causes reduced bone resorption and increased bone density as a result of osteoclastic function defect. Our aim is to review the difficulties, mid-term follow-up results, and literature encountered during the treatment of OP. Methods. This is a retrospective and observational study containing data from nine patients with a mean age of 14.1 years (9 to 25; three female, six male) with OP who were treated in our hospital between April 2008 and October 2018 with 20 surgical procedures due to 17 different fractures. Patient data included age, sex, operating time, length of stay, genetic type of the disease, previous surgery, fractures, complications, and comorbidity. Results. The mean follow-up period was 92.5 months (25 to 140). Bony union was observed in all of our patients. Osteomyelitis developed in two patients with femoral shaft fractures, and two patients had peri-implant stress fractures. Conclusion. Treatment of fractures in OP patients is difficult, healing is protracted, and the risk of postoperative infection is high. In children and young adults with OP who have open medullary canal and the epiphyses are not closed, fractures can be treated with surgical techniques such as intramedullary titanium elastic nail (TENS) technique or fixation with Kirschner (K)-wire. Cite this article: Bone Joint J 2020;102-B(8):1082–1087

BACKGROUND. Most closed tibial fractures in children can be treated conservatively. On the occasions that surgical intervention is required, there are various options available to stabilise the fracture. We would like to present our experience of using monolateral external fixators in the management of closed tibial fractures. Aim. We sought to assess the time to healing, limb alignment, and complications observed in a cohort of tibial fractures treated with external fixation. METHODS. Our limb reconstruction database was used to identify patients who underwent monolateral external fixation for a closed tibial fracture between January 2008 and December 2016. Radiographs of all patients were assessed to determine the original fracture pattern. Time to union was assessed as the time when the fixator was removed and the patient allowed to mobilise independently without any further support of the limb. The presence or absence of residual deformity was assessed on final follow-up radiographs. RESULTS. 22 patients fulfilled the inclusion criteria. 78% of patients had both tibial and fibular fracture. The mean age at injury was 12 years. The mean time taken for the fracture to heal was 18 weeks. The total duration of follow-up averaged 9 months. The mean Valgus deformity at the final follow up was 4 degrees and the mean Varus deformity was 4 degrees. The mean procurvatum was 4.2 degrees and the mean recurvatum was 6 degrees. 50% of patients had pin site infection. Two patients had tibio fibular synostosis. None of them had leg length discrepancy or refractures. There were no episodes of osteomyelitis. CONCLUSIONS. Five degree of coronal plane deformity and ten degree of sagittal deformity were considered as acceptable in children due to their potential for remodeling. All our patients had acceptable levels of residual deformity. In our opinion monolateral external fixation represents a safe and effective option

Aims

The aims of this study were to report the outcomes of patients with a complex fracture of the lower limb in the five years after they took part in the Wound Healing in Surgery for Trauma (WHIST) trial.

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Ankle fractures are common injuries and the third most common fragility fracture. In all, 40% of ankle fractures in the frail are open and represent a complex clinical scenario, with morbidity and mortality rates similar to hip fracture patients. They have a higher risk of complications, such as wound infections, malunion, hospital-acquired infections, pressure sores, veno-thromboembolic events, and significant sarcopaenia from prolonged bed rest.

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Several previously identified patient-, injury-, and treatment-related factors are associated with the development of nonunion in distal femur fractures. However, the predictive value of these factors is not well defined. We aimed to assess the predictive ability of previously identified risk factors in the development of nonunion leading to secondary surgery in distal femur fractures.

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The aim of this study was to perform the first population-based description of the epidemiological and health economic burden of fracture-related infection (FRI).

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Pneumatic tourniquets are often used during the surgical treatment of unstable traumatic ankle fractures. The aim of this study was to assess the risk of reoperation after open reduction and internal fixation of ankle fractures with and without the use of pneumatic tourniquets.

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Fracture-related infections (FRIs) are a devastating complication of fracture management. However, the impact of FRIs on mental health remains understudied. The aim of this study was a longitudinal evaluation of patients’ psychological state, and expectations for recovery comparing patients with recurrent FRI to those with primary FRI.

Introduction. Fractures of the distal tibia can be challenging to manage. Numerous surgical techniques have been utilised in managing these however there remains debate as to the optimum method of fixation. This study aims to assess the surgical outcomes and PROMs of patients with distal tibial fractures managed with intramedullary-nails or ring fixation. Methods. This is a retrospective study of patients with closed distal tibial fractures managed between 01/01/2013–31/12/2016. Adult patients admitted with closed fracture of the distal tibia fixed with an intramedullary-nail or circular-frame were included in the study. Primary outcomes were time of union, alignment of tibia post-operatively and the results of two validated PROMs (Kujala knee score and Olerud and Molander Ankle Score). Results. 12 patients had circular-frame and 14 patients underwent intramedullary-nailing. PROMS were completed in 9 (75%) of the frame group and 7 (50%) of the nail group. There was no statistically significant difference in age (p=0.095); no statistically significant difference in time to union (medians = frame 29.7 weeks, IM nail 24 weeks, p=0.212); no statistically significant difference in the coronal angulation difference from neutral (medians = frame 1.9 degrees, IM nail 2.0 degrees, p=0.940). There was statistically significant difference in sagittal angulation difference from neutral (Medians = frame 3 degrees, IM nail 0.6 degrees, p=0.041); the proportion of males in the frames groups was statistically significantly higher (p=0.033). There was no statistically significant difference in outcome of ankle scores (medians = frame 92.5, IM nail 75, p=0.132); there was a statistically significant difference in the knee score favouring the frame group (medians = frame 99, IM nail 74.5, p=0.041). Discussion. Our results show distal tibia fractures can be treated with circular-frames or IM-nails. Patients at high-risk of soft tissue complication or to minimise the risk of knee symptoms should be considered for a circular-frame

Introduction. Segmental bone defect is a challenging problem. We report our experience of bone transport by hexapod external fixator in patients with segmental defects if the tibia. Method. We report herein 15 patients with segmental bone defect of tibia who completed their treatment protocol. All patients were treated had bone transport with Taylor Spatial Frame from 2012 to 2017. All were treated by the senior author NH. Parameters measured included age, sex, diabetes, smoking, diagnosis, method of fixation prior to treatment use of a free flap, bone defect size, frame-time, external fixation index. Results. Mean age at the time of frame application was 42.7 years. Mean follow-up after frame removal was 23.7 months. Three were diabetic, one smoked and one quit smoking during treatment. Seven had Gustilo-Anderson 3B (47%) and 5 Gustilo-Anderson 3A (33%) open fractures. Three (20%) had closed fractures. Nine (60%) had internal fixation with plate in eight and IM nail in one. Ten patients (67%) had soft tissue defect that required a free flap in seven, local flap in two and skin graft in one. Mean transport was 62 mm. Mean external fixator time and latency were 350.1 and 12 days, respectively. Mean External fixator, distraction and maturation indices were 2.1, 0.52 and 1.43 month per centimeter, respectively. Ten Extra- procedures were required in 7 patients. There were no docking site procedures, non-union of regenerate, adjunctive stabilization after frame removal, recurrence of bone infection and recurrence of deformity. Conclusions. Segmental resection and transport by TSF is an effective method to achieve length, alignment and eradicate infection. Although our cohort had longer external fixator indices than similar studies, the complication rate was low

Aims

There is increasing evidence to support the use of topical antibiotics to prevent surgical site infections. Although previous research suggests a minimal nephrotoxic risk with a single dose of vancomycin powder, fracture patients often require multiple procedures and receive additional doses of topical antibiotics. We aimed to determine if cumulative doses of intrawound vancomycin or tobramycin powder for infection prophylaxis increased the risk of drug-induced acute kidney injury (AKI) among fracture patients.

Introduction. Distal tibial fractures are notoriously difficult to treat and a lack of consensus remains on the best approach. This study examined clinical and functional outcomes in such patients treated definitively by circular external fixation (Ilizarov). Patients and Methods: Between July 2011 and May 2016, patients with fractures extending to within 1 muller square of the ankle were identified from our prospective Ilizarov database. Existing data was supplemented by review of clinical records. Fractures were classified according to the AO/OTA classification. Functional outcome data, including general measures of health related quality of life (SF-12 and Euroqol) and limb specific scores (Olerud and Molander Score and Lysholm scores) had been routinely collected for part of the study period. Patients in whom this had not been collected were asked to complete these by post. Adverse events were documented according to Paley's classification of: problems, obstacles and complications. Results. 142 patients with 143 fractures were identified, 40 (28%) were open, 94 (66%) were intra-articular, 85 (59%) were tertiary referrals. 32% were type 1, 28%, type 2 and 40% type 3 AO/OTA severity. 139 (97%) of the fractures united (2 non-unions, 1 amputation and 2 delayed unions who remain in frames), at a median of 165 days (range 104 to 429, IQR 136 to 201). 62% united by 6 months, 87% by 9 months and 94% by 1 year. Both non-unions have united with further treatment. Closed fractures united more rapidly than open (median 157 vs 185 days; p=0.003) and true Pilon (43C3) fractures took longer to unite other fractures (median 156 vs 190 days; p<0.001). 34% of patients encountered a problem, 12% an obstacle and 10% a complication. Of the complications, 6 (4%) were minor, 5 (3.5%) major not interfering with the goals of treatment and 4 (3%) major interfering with treatment goals (including the 2 patients with non-union and 1 who underwent amputation as well as 1 significant mal-union). This will increase to 4% if the 2 delayed unions fail to unite. Overall 56% reported good or excellent ankle scores at last report, 28% fair and 16% poor. Closed, extra-articular and non-43C3 fractures had better functional outcome scores than open, intra-articular and 43C3 fractures respectively. Conclusions. This study demonstrates a high union and low serious complication rate, suggesting that external ring fixation is a safe and effective treatment for these injuries. *Judged best paper*

Introduction. Our previous study using microarray analysis showed that Rad (Ras associated with diabetes) was highly expressed in nonunion. The purpose of this study is to investigate the gene expression and immunolocalization of Rad, and other Ras-related G proteins: Rem1 and Rem2 in fracture/nonunion site using rat experimental models. Hypothesis. We hypothesized that Rad had a significant role in nonunion formation. Materials & Methods. For standard healing model, K-wire was inserted into the femur and a closed fracture was created. Nonunion model was produced by periosteal cauterization at the fracture site. At post-fracture days 3, 7, 10, 14, 21, and 28, RNA was extracted from callus or fibrous tissue for real-time PCR. At day 14, specimens were harvested for immunohistochemistry. Results. Significant difference of Rad gene expression was not observed between standard healing fracture and nonunion at the earlier time points. In contrast, significantly higher expression in nonunion was observed at the later time points. There were no significant differences between standard healing fracture and nonunion in gene expression of Rem1 and Rem2. In immunohistochemical analysis, Rad and Rem1 were detected in the fracture site, and Rem2 was not detected. On the other hand, Rad was only detected in fibrous tissue in nonunion. Discussion & Conclusion. Our results suggest a significant role of Rad in fracture healing and nonunion formation. Rad may become a target agent for treatment of nonunion

Open or closed fracture of the tibial shaft is a common injury. There is no long-term outcome data of patients after tibial shaft fracture utilising modern treatment methods. This study assessed pain and function of 1509 consecutive patients with a tibial shaft fracture at 12–22 years following injury. Secondary outcomes included: effect on employment, effect of social deprivation, necessity for hardware removal and comparative morbidity following fasciotomy. Prospective study of 1509 consecutive adult patients with a tibial shaft fracture (1990–1999) at a high-volume trauma unit. 1034 were male, and the mean age at injury was 40 years. Fractures were classified according to AO, and open fractures graded after Gustillo and Anderson. Time to fracture union, complication rate, hardware removal and incidence of anterior knee pain were recorded. Employment and assessment of social deprivation were detailed. Function was assessed at 12 to 22 years post injury using the Short Musculoskeletal Functional Assessment and Short Form 12 questionnaires. 87% of fractures united without further intervention. Social deprivation was associated with higher incidence of fracture and poorer functional and economic outcomes. 11.5% patients underwent fasciotomy which correlated with poorer long-term outcome. Tibial shaft fracture had high mortality in the elderly. At long-term follow-up 25% of patients have anterior knee pain and 20% ankle discomfort after IM nailing. This is the largest and longest study assessing functional and economic outcomes of tibial shaft fracture. This is the first paper to describe ankle pain following tibial IM nailing at long-term follow-up

Aims

The study objective was to prospectively assess clinical outcomes for a pilot cohort of tibial shaft fractures treated with a new tibial nailing system that produces controlled axial interfragmentary micromotion. The hypothesis was that axial micromotion enhances fracture healing compared to static interlocking.

The Study to Prospectively Evaluate Reamed Intramedullary Nails in Tibial Shaft Fractures (SPRINT) randomised 1,226 patients treated by intramedullary nailing to reamed versus unreamed groups. We aimed to determine if there was a difference in the number of patients requiring more than one reoperation between the groups. We hypothesised there would be differences in the number of patients with more than one reoperation in the reamed versus unreamed groups and in patients with open fractures versus closed fractures. We identified patients requiring more than one reoperation during the 12 m follow-up. We considered those that were reamed versus unreamed, open versus closed, and those with a reoperation planned post 12 m follow-up. We also compared patient and fracture characteristics. We identified a total of 44 patients requiring two or more reoperations. No difference between the reamed and unreamed groups was found in the risk of having more than one reoperation. Patients with two or more reoperations were older (p=0.03), had a higher frequency of open fractures (p<0.001), and had higher energy mechanisms of injury (p<0.001). The first reoperation was in response to infection for 25 patients. 12 patients had additional reoperations planned after the 12 m follow-up. A relatively small number of tibial shaft fracture patients required more than one reoperation. Further study is required to assess consequences of needing multiple reoperations in this high risk group