Tag Archives: injury

Divergent Lisfranc injury with dislocation of great toe interphalangeal joint: A rare case report

by Dr. Ganesh Singh Dharmshaktu1*, Dr. Binit Singh2

The Foot and Ankle Online Journal 10 (3): 3

Injury to the Lisfranc joint is an uncommon event and requires keen evaluation to diagnose it early for the optimal outcome following adequate treatment. Many classifications describe the divergent pattern of this injury as separate entity and even rarer in incidence. The associated ipsilateral great toe interphalangeal dislocation along with the rare divergent pattern of Lisfranc fracture dislocation makes our case unusual. The case was managed by reduction of the great toe interphalangeal dislocation with percutaneous reduction and fixation of Lisfranc injury with screws and multiple K-wires, resulting in a good clinical outcome on follow up.  No single case similar to ours is reported previously to the best knowledge of the authors.

Keywords: foot, injury, dislocation, Lisfranc joint, tarsometatarsal joint, interphalangeal, management, fixation

ISSN 1941-6806
doi: 10.3827/faoj.2017.1003.0006

1 – Assistant Professor, Department of Orthopaedics, Government Medical College, Haldwani , Uttarakhand. India.
2 – Assistant Professor, Department of Orthopaedics, Government Medical College, Haldwani , Uttarakhand. India.
* – Corresponding author: drganeshortho@gmail.com

IInjury to the Lisfranc joint (Tarsometatarsal joint) is a rare event with reported incidence of 0.1 to 0.4% of fracture cases [1]. Early identification and meticulous management, often surgical, is required for optimal outcome as the conservative approach has been linked to poor results [2]. Quenu and Kuss did instrumental work to highlight the anatomical and clinical understanding of Lisfranc joint along with description of the “Lisfranc ligament bundle” bridging second metatarsal and first cuneiform bone as key stabilizing structure of tarsometatarsal (TMT) joint [3]. The classification given by the same authors is widely used and it describes three types of the injury; homolateral, isolated and divergent. Divergent dislocation was described as a complete disruption of the TMT joint with first ray and lesser rays displaced in the opposite direction. Another classification by Hardcastle et al modified the abovementioned classification on the basis of radiological evaluation into three types – complete, partial and divergent [4]. Type C or divergent variant was noted with medialisation of first metatarsal and lateral translation of variable number of rest of the metatarsals. The literature is scant about this rare pattern of injury as compared to other types.

Case Report

A 28-year-old male patient was brought to us with a history of injury to his right foot a few hours earlier. There was swelling and pain after the patient sustained an injury to the foot by the jumping off a moving bus. He reported he lost his balance and his foot was twisted before he fell to hard ground. The exact position of the foot at the time of impact is not properly recalled by the patient. There was visible deformity over medial aspect of foot and great toe suggesting presence of underlying significant bony or soft tissue injury. The radiograph of the affected foot showed fracture dislocation of Lisfranc joint along with inter-phalangeal dislocation of ipsilateral first toe. The pattern of Lisfranc injury was divergent with medial dislocation of first TMT joint and lateral dislocation of the rest of the TMT joint (Figure 1). There was also a fracture of the fifth metatarsal base with minimal displacement. Following informed consent, the patient was planned for urgent reduction of aforementioned injury with internal fixation. The rarity of the injury pattern was explained to the patient with additional written consent for future publication.

Figure 1 Preoperative radiograph showing great toe interphalangeal dislocation with divergent Lisfranc fracture dislocation.

The closed reduction of the interphalangeal dislocation was easily achieved under anesthesia which was later confirmed under fluoroscopy and the closed reduction of Lisfranc injury was achieved under fluoroscopic guidance. Two K-wires (2.0 mm) were introduced, one along the second metatarsal into the tarsal bones transfixing the Lisfranc joint. The other K-wire (1.0 mm) was introduced along the lateral TMT joints for added stability. The additional cortical screw (3.5 mm) was used for added stability from medial aspect and fixing the Lisfranc joint (Figure 2). The small wounds were dressed and a well-padded below knee plaster protection splint was applied following the confirmation of satisfactory alignment and fixation of the injuries. Elevation and non-weight bearing protocols were advised. Active toe and knee joint range of motion exercises were encouraged throughout the follow up. Gradual healing of the injury was noted in the follow-up along with reduction of swelling, pain and discomfort. The hardware were sequentially removed between 18-26 months postoperatively (Figure 3). The plaster splint was removed after eight weeks as swelling and pain were minimal. The only complication noted was hardware prominence of the medial screw that loosened over time and later was managed by its removal. The removal of K-wires and screw was uneventful at four and six month follow up. There was no re-dislocation of great toe noted and the patient was performing activities of daily living.

Figure 2 Postoperative radiograph showing the fixation of the Lisfranc injury with K-wire and screw from medial aspect along with reduced interphalangeal dislocation.

Figure 3 The follow up radiograph showing healed Lisfranc injury at the time of final hardware removal.


Meticulous clinical and radiological assessment is critical for the diagnosis of Lisfranc injuries as these are notoriously missed in emergency settings and may be the reason for later medico-legal issues [5]. The divergent dislocation, as in our case, have characteristic radiographic deformity that makes it hard to miss and the diagnosis is evident. The divergent Lisfranc fracture dislocation is stated to be associated with fractures of other bones in the foot like the cuneiforms and navicular [6].The subtle injuries, the doubtful diagnosis and the requirement of looking for interposed structure interfering with reduction calls for use of imaging like computerized tomogram (CT) or magnetic resonance imaging (MRI) [7,8]. Our patient refused further imaging due to financial issues and urgent operative intervention was initiated. Open reduction-internal fixation (ORIF) and primary arthrodesis are two common techniques. Our method with use of closed reduction and percutaneous fixation with wires and screws resulted in primary arthrodesis of Lisfranc joint. The reported incidence of secondary procedures for complications has been found to be minimal with primary arthrodesis [9]. Studies have also shown good outcome of primary arthrodesis in comparison with ORIF in the long term [9,10]. Primary arthrodesis also obviates need for secondary arthrodesis in case of arthritis following either modality of treatment. Our minimal invasive approach resulted in early discharge and avoided wound complications.

Acknowledgement None


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Tibiocalcaneal kinematics during treadmill and overground running

by Jonathan Sinclair1, Paul J Taylor2pdflrg

The Foot and Ankle Online Journal 7 (2): 8

Epidemiological studies analyzing the prevalence of running injuries suggest that overuse injuries are a prominent complaint for both recreational and competitive runners. Excessive coronal and transverse plane motions of the ankle and tibia are linked to the development of a number of chronic injuries. This study examined differences in tibiocalcaneal kinematics between treadmill and overground running. Ten participants ran at 4.0 m.s-1 in both treadmill and overground conditions. Tibiocalcaneal kinematics were measured using an eight-camera motion analysis system and compared using paired samples t-tests. Of the examined parameters; peak eversion, eversion velocity, tibial internal rotation and tibial internal rotation velocity were shown to be significantly greater in the treadmill condition. Therefore, it was determined treadmill runners may be at increased risk from chronic injury development.

Keywords: Biomechanics, treadmill, injury, running.

ISSN 1941-6806
doi: 10.3827/faoj.2014.0702.0008

Address correspondence to:2School of Psychology University of Central Lancashire,Preston, Lancashire, PR1 2HE.
E-mail: PJTaylor@uclan.ac.uk

1 Centre for Applied Sport and Exercise Sciences, University of Central, Lancashire.

Epidemiological studies analyzing the prevalence of running injuries suggest that overuse injuries are a prominent complaint for both recreational and competitive runners [1]. Each year approximately 19.4-79.3 % of runners will experience a pathology related to running [2].

The treadmill is now recognized as a common mode of exercise, and is becoming more popular as a running modality [3]. Since the early 1980’s the sport of running has changed dramatically, with a significant increase in the number of treadmill runners [4]. Runners’ World suggests that 40 million people in the U.S alone run using treadmills. Traditionally, treadmills have been used in clinical and laboratory research, but are now used extensively in both fitness suites and homes.

Treadmills allow ambulation at a range of velocities whilst indoors in a safe controlled environment. It is not currently known, however, whether the incidence of injuries may be affected differently between treadmill and overground running.

Lower extremity kinematic motions of excessive eversion and tibial internal rotation have been connected with various running injuries [5,6,7]. Additionally, movement coupling between the foot and shin, which causes the tibia segment to rotate internally between touchdown and midstance, has also been linked to the etiology of injury [8,9,10]. The amount of the motion transfer from ankle eversion to tibial internal rotation has been shown to differ widely among individuals [8,11]. However, given the popularity of treadmill running, surprisingly few investigations have specifically examined 3-D kinematics of the tibia and ankle during running on the treadmill in comparison to when running overground. Therefore the aim of the current investigation was to determine whether differences in tibiocalcaneal kinematics exist between treadmill and overground running.



Ten male participants (age 29.39 ± 5.17 years, height 1.81 ± 0.11m and body mass 74.19 ± 7.98kg) volunteered to take part in the current investigation. All were free from musculoskeletal pathologies at the time of data collection and provided informed consent. All runners were considered to be rearfoot strikers as they exhibited a clear first peak in their vertical ground reaction force time-curve. Ethical approval was obtained from the University Ethics Committee and the procedures outlined in the declaration of Helsinki were followed.


All kinematic data were captured at 250 Hz via an eight-camera motion analysis system (QualisysTM Medical AB, Goteburg, Sweden). Two identical camera systems were used to collect each mode of running. Calibration of the QualisysTM system was performed before each data collection session.

The current investigation used the calibrated anatomical systems technique (CAST) [12]. To define the anatomical frame of the right; foot and shin retroreflective markers were positioned unilaterally to the calcaneus, 1st and 5th metatarsal heads, medial and lateral malleoli and medial and lateral epicondyle of the femur. A tracking cluster was positioned onto the shin segment. The foot segment was tracked using the calcaneus, 1st and 5th metatarsal markers respectively. A static trial was conducted with the participant in the anatomical position in order for the positions of the anatomical markers to be referenced in relation to the tracking markers/ clusters, following which those not required for tracking were removed.

In the overground condition participants completed ten running trials over a 22m walkway (Altrosports 6mm, Altro Ltd, Letchworth Garden City, Hertfordshire, UK) at 4.0m.s-1±5% in the laboratory. Running velocity was monitored using infra-red timing gates (SmartSpeed Ltd UK). A successful trial was defined as one within the specified velocity range, where all tracking clusters were in view of the cameras and with no evidence of gait modification due to the experimental conditions. To collect treadmill information a WoodwayTM (ELG,Weil am Rhein, Germany) high-power treadmill was used throughout. Participants were given a 5-min habitation period, in which participants ran at the determined velocity prior to the collection of kinematic data. Ten trials were also collected for treadmill kinematics. As force information was not available for each running condition, footstrike and toe-off were determined using kinematic information as in previous research [3]. The order in which participants ran in each condition was counterbalanced.

Data processing

Running data were digitized using QualisysTM Track Manager in order to identify appropriate retroreflective markers then exported as C3D files. 3-D kinematics were quantified using Visual 3-D (C-Motion Inc, Germantown, MD, USA) after marker displacement data were smoothed using a low-pass Butterworth 4th order zero-lag filter at a cut off frequency of 15 Hz [13]. 3-D kinematics were calculated using an XYZ sequence of rotations (where X represents sagittal plane; Y represents coronal plane and Z represents transverse plane rotations) [14]. All kinematic waveforms were normalized to 100% of the stance phase then processed trials were averaged. Discrete 3-D kinematic measures from the ankle and tibia which were extracted for statistical analysis were 1) angle at footstrike, 2) angle at toe-off, 3) range of motion from footstrike to toe-off during stance, 4) peak eversion/ tibial internal rotation, 5) relative range of motion (ROM) (representing the angular displacement from footstrike to peak angle, 6) peak eversion/ tibial internal rotation velocity, 7) peak inversion/ tibial external rotation velocity, 8) eversion/ tibial internal (EV/TIR) ratio which was quantified in accordance with De Leo et al [15] as the relative eversion ROM / the relative tibial internal rotation ROM.

Statistical analysis

Means and standard deviations were calculated for each running condition. Differences in the outcome 3D kinematic parameters were examined using paired samples t-tests with significance accepted at the p≤0.05 level. Effect sizes for all significant observations were calculated using a Cohen’s D statistic. The data were screened for normality using a Shapiro-Wilk test which confirmed that the normality assumption was met. All statistical analyses were conducted using SPSS 21.0 (SPSS Inc, Chicago, USA).


The results indicate that while the kinematic waveforms measured during overground and treadmill running were quantitatively similar, significant differences were found to between the two running modalities. Figure 2 presents the 3-D tibiocalcaneal angular motions from the stance phase. Tables 1 and 2 present the results of the statistical analysis conducted on the tibiocalcaneal measures.

In the coronal plane, treadmill runners were associated with significantly (t (9) = 5.66, p<0.05, D= 1.22) greater peak eversion in comparison to when running overground. In the transverse plane it was also shown that peak tibial internal rotation was significantly (t (9) = 5.71, p<0.05, D= 1.28) greater when running on the treadmill compared to when running overground. Finally, the EV/ TIR ratio was shown to be significantly higher when running on the treadmill compared to overground.


Table 1 Tibiocalcaneal joint angles measured during treadmill and overground running (* = significant difference).


Table 2 Tibiocalcaneal angular velocities measured during treadmill and overground running (* = significant difference).


Figure 1 Tibiocalcaneal kinematics as a function of overground and treadmill conditions (Black = treadmill and Dash = overground) (a = ankle coronal plane angle, b = tibial internal rotation angle, c = ankle coronal plane velocity, d = tibial internal rotation velocity) (EV = eversion, INT = internal).

In the coronal plane, treadmill runners were associated with significantly (t (9) = 4.65, p<0.05, D= 1.06) greater peak eversion angular velocity in comparison to when running overground. In the transverse plane it was also shown that peak tibial internal rotation angular velocity was significantly (t (9) = 4.80, p<0.05, D= 1.10) greater when running on the treadmill compared to when running overground.


This study aimed to determine whether differences in tibiocalcaneal kinematics exist between treadmill and overground running. This represents the first comparative investigation to consider the variations that may be present in tibiocalcaneal kinematics between these two running modalities.

The key observation from the current study is that treadmill running was associated with significantly greater eversion and tibial internal parameters in comparison to overground running. This finding may relate to the deformation characteristics of the surface during the treadmill condition and has potential clinical significance. These findings suggest that running on a treadmill may be associated with an increased risk from injury as rearfoot eversion and tibial internal rotation are implicated in the etiology of a number of overuse injuries [16,17,18,19]. Therefore treadmill runners may be at a greater risk from overuse syndromes such as tibial stress syndrome, Achilles tendinitis, patellar tendonitis, patellofemoral pain, iliotibial band syndrome and plantar fasciitis [16,17,18,19].

With respect to the potential differences in coupling between ankle and tibia it was observed that treadmill running showed a trend towards having a lower ankle eversion to tibial internal rotation ratio in comparison to overground. This suggests that differences between the two running modalities may exist in terms of the distal coupling mechanism between ankle and tibia. The EV/TIR is an important mechanism as it provides insight into where an injury is most likely to occur [8]. It is hypothesized that a greater EV/TIR ratio (i.e. relatively greater rearfoot eversion in relation to tibial internal rotation) may increase the stress placed on the foot and ankle [8,20] and are thus at greater risk for foot injuries. Conversely, those with lower EV/TIR ratios (relatively more tibial motion in relation to rearfoot eversion) are at greater risk from knee related injuries [10,20,21]. As such it appears that those who habitually run on a treadmill are susceptible to knee injuries and those who train overground may be most susceptible to foot injuries.

A limitation to the current investigation was the all-male sample. Sinclair et al [22] demonstrated that females exhibited significantly greater ankle eversion compared to age matched males. Therefore future work is required to determine the influence of different running modalities in female runners. Finally, this study quantified foot kinematics using markers positioned onto the shoe may serve as a limitation of the current analysis. There is likely to be movement of the foot within the shoe itself and thus it is questionable as to whether retro-reflective markers positioned on shoe provide comparable results to those placed on the skin of the foot [23,24]. However, as cutting holes in the experimental footwear in order to attach markers to skin compromises the structural integrity of the upper [24], it was determined that the utilization of the current technique was most appropriate.


In conclusion, although the mechanics of treadmill and overground running have been extensively studied, the degree in which tibiocalcaneal kinematics differs between the two modalities is limited. The present study adds to the current knowledge by providing a comprehensive evaluation of tibiocalcaneal kinematics during treadmill and overground running. Given the significant increases in eversion and tibial internal rotation observed in the treadmill condition, it was determined treadmill runners may be at increased risk from chronic injury development.


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