BACKGROUND: Cervical spine fracture-dislocations in patients with ankylosing spondylitis (AS) are mostly unstable and require surgery. However, osteoporosis, one of the comorbidities for AS, could lead to detrimental prognoses. There are few accurate assessments of bone mineral density in AS patients.
OBJECTIVE: To analyze Hounsfield units (HUs) for assessing bone mineral density in AS patients with cervical fracture-dislocation.
METHODS: The HUs from C2 to C7 of 51 patients obtained from computed tomography (CT) scans and three-dimensional reconstruction of the cervical spine were independently assessed by two trained spinal surgeons and statistically analyzed. Inter-reader reliability and agreement were assessed by interclass correlation coefficient.
RESULTS: The HUs decreased gradually from C2 to C7. The mean values of the left and right levels were significantly higher than those in the middle. Among the 51 patients, 25 patients (49.02%) may be diagnosed with osteoporosis, and 16 patients (31.37%) may be diagnosed with osteopenia.
CONCLUSIONS: The HUs obtained by cervical spine CT are feasible for assessing bone mineral density with excellent agreement in AS patients with cervical fracture-dislocation.

Large posterolateral tibial fragments, known as Volkmann fractures, are common in ankle fracture-dislocations and typically require open reduction and fixation with interfragmentary screws and often buttress plates using a prone posterolateral approach. In this setting, fibula plating often necessitates dissection of the lateral window between the peroneal tendons and the skin, increasing wound-related complications. In recent years, intramedullary nailing of fibula fractures has gained popularity as a minimally invasive technique that allows load-sharing stabilization. However, this procedure has traditionally been performed in the supine position, which can pose challenges if a Volkmann-type fracture is present, requiring repositioning and losing access to the fibula through the posterolateral approach. Our objective is to describe a technique for fixing ankle fracture-dislocations with large posterolateral fragments using tibial buttress plates and fibula nails through a prone posterolateral approach without dissecting the lateral window. Additionally, we will present a case series with preliminary results.

UNASSIGNED: Fracture-dislocations of the proximal interphalangeal joint (PIPJ) can have a significant impact on digital motion and hand function if inappropriately treated. While these injuries are commonly encountered, they can be quite challenging to manage. It is critical to ensure a concentric reduction and early motion when treating these injuries.
UNASSIGNED: A 17-year-old woman sustained a fracture-dislocation of the PIPJ of the left small finger. Despite a concentric closed reduction, she had pain and a mechanical block to PIPJ motion. Advanced imaging revealed volar plate entrapment in the retrocondylar space. She was treated with open reduction and direct volar plate repair. Postoperatively, the patient had an excellent outcome with no complications.
UNASSIGNED: Our case highlights the importance of both performing an anesthetized examination and investigating the etiology of any limitations to motion even if there is an initial acceptable closed reduction.

UNASSIGNED: To report the sequential treatment of a Type II odontoid fracture combined with a severe lower cervical (C6-7) fracture-dislocation featuring bilateral facet joint interlocking.
METHODS: A 58-year-old male who had suffered an injury in a car accident, He presented neck pain and extremity paralysis. His neurological function was classified as per the American Spinal Injury Association (ASIA) impairment scale as Grade A, indicating complete deficits below the C6 spinal cord level. A cervical CT scan and magnetic resonance image showed a type II odontoid fracture, C6 slipped anteriorly, C6-7 bilateral facet joint fracture and interlocking, slightly compression change of C7 upper endplate.
UNASSIGNED: Emergency closed reduction using cranial tong traction was success 6 h after the injury. A subsequent CT scan proved the successful reduction of bilateral facet joint dislocations and the odontoid fracture. After careful overall assessment, anterior cervical decompression and fusion (ACDF) was performed at C5-6 and C6-7 segments three days later，while odontoid fracture was treated conservatively. At the 4 months follow-up, a CT scan demonstrated solid bone fusion at C5-6, C6-7 segments, along with successful healing at the odontoid fracture site. However, spinal cord was necrosis at C5-7 segments, and the patient\'s neurological function had no improvement.
CONCLUSIONS: The initial closed reduction could restore the alignment and preliminary stability of cervical spine at sub-axial cervical fracture-dislocation segment as well as displaced odontoid fracture. This timely and effective closed reduction significantly diminished sequential surgical trauma and mitigated associated risks.

UNASSIGNED: Proximal ulna fracture-dislocations are challenging injuries with a myriad of existing classification systems. The Coronoid, proximal Ulna, Radius, and Ligaments classification (CURL) is a simple framework designed to focus attention on the key components affecting outcome and guide surgical management. This study evaluates interobserver and intraobserver reliability of this new classification.
UNASSIGNED: Four observers independently reviewed plain radiographs and computed tomography (CT) scans of patients with proximal ulna fracture-dislocations. Each observer scored the Coronoid (C), proximal Ulna (U), and Radius (R) components for each fracture on 2 occasions. The osseous components were subclassified as \'intact\', \'simple\', or \'complex\'. The Ligament component (L) was not rated as this requires intraoperative classification. Interobserver and intraobserver reliability was calculated using Cohen\'s weighted kappa coefficients. X-ray and CT were compared for patients with both imaging modalities. The Landis and Koch criteria were used to interpret the strength of the kappa statistics.
UNASSIGNED: One hundred seventy seven patients had plain X-rays; 58 patients had both X-ray and CT scans. Overall, in the X-ray only cohort, there was \'almost perfect\' interobserver reliability for the radial head (k = 0.94) and coronoid (k = 0.83), and \'substantial\' reliability (k = 0.68) for the proximal ulna. For the X-ray and CT cohort, interobserver reliability was \'almost perfect\' across both modalities for the radial head (k = 0.88 and k = 0.93, respectively) and \'moderate\' for the proximal ulna (k = 0.48 and k = 0.52, respectively). For the coronoid, interobserver reliability for X-ray interpretation was \'substantial\' (k = 0.74) and for CT was \'almost perfect\' (k = 0.89). Intraobserver reliability was \'almost perfect\' for all components, other than CT assessment of the proximal ulna which demonstrated \'substantial\' reliability (k = 0.74).
UNASSIGNED: The Coronoid, proximal Ulna, Radius, and Ligaments classification demonstrates strong interobserver and intraobserver reliability, supporting use of the classification for proximal ulna fracture-dislocations. CT is recommended for improved characterization of any fracture with a coronoid component.

Soccer is one of the most popular sports with millions of active professional and non-professional players worldwide. Traumatic hip dislocations are rare in soccer but can lead to major sequelae both physically and psychologically. The aim of this review was to obtain insight into the outcomes after surgerically repaired hip fracture-dislocation in soccer players as well as rehabilitation and prevention.
Two cases of a posterior hip fracture-dislocation that occurred during an amateur soccer match are presented and mechanism of injury, complications and rehabilitation were analysed. Follow-up of both patients was at least one year after surgery. Questionnaires and physical examinations were obtained to quantify and qualify outcome.
In both cases the hip-dislocations were reduced within 3 h after injury. Semi-elective open reduction and internal fixation was performed within seven days. In one case, there was a concomitant Pipkin fracture and sciatic nerve neuropathy. There were no postoperative complications. Follow-up showed full of range of motion and normal hip functionality in both cases. However, both patients indicated a reduced quality of life and anxiety related to the accident.
Traumatic hip fracture-dislocations during soccer practice are extremely rare. Despite uncomplicated fracture healing after surgery and return of hip function, both patients still suffer from psychological problems resulting in a decreased quality of life. Further research is required to enhance psychological outcomes, as well as to facilitate return to pre-injury levels of participation and engagement in sports following traumatic hip fracture-dislocations related to soccer.

BACKGROUND: The thoracic spine is stable because of kyphotic alignment, rib cage, and costovertebral joints. Any compression or kyphosis in the thoracic spine always causes spinal cord injury.
METHODS: A 47-year-old male with complaints of back pain 1 day prior to admission, after he sustained a motorbike crush and landed on his back. The pain, radiates to both limbs, associated with severe spasms, numbness, and weakness in his lower extremities, however no incontinence. No other associated injuries were reported. 25 years ago he had a history of tuberculosis of the spine with progressive deformity of the back, he was treated medically without surgery. On examinations: Gibbus at T11-L1, with hyper-pigmented post-inflammatory skin and an easily palpable spine, power 1/5 right and 2/5 left lower limbs, Sensation and bulbocarvenosus reflex were intact. Upper limbs were neurologically intact. All laboratory investigations including FBP, ESR, Electrolytes, renal and liver function tests were all within normal range. After radiological imaging, a final diagnosis of Spinal Cord Injury, ASIA C. AO classification type T12-L1:C/T9-L1:A4/N3/M2 was made. He was kept on a thoracolumbar corset 6 weeks after being initiated on spine protocol. He was discharged 8 weeks this time patient had no back pain but no improvement was noted neurologically. After a year of thoracolumbar corset and physiotherapy, he reported no more back pain, no numbness to lower limbs, and power 3/5 right and 4/5 left lower limbs, with intact sensation. However, no changes were observed radiologically.
UNASSIGNED: Due to the instability of fracture-dislocation, surgical treatment is recommended to realign the spine but for this case with back deformity and fractured vertebra bodies, it is best not to temper with reduction and fixation as it would further worsen the neurological deficit of the patient, during maneuvers while doing the reduction.
CONCLUSIONS: Fracture-dislocation of the thoracic spine can impact the physical and mental well-being of the patients. Surgical fixation and instrumentation are ideal but in cases where surgical intervention would further impair the neurological function of the patient conservative management is the goal.

OBJECTIVE: To describe our institutional experience and results in the surgical management of multiligament knee injuries (MLKI).
METHODS: Retrospective series of MLKI consecutively operated on at a single, level I Trauma Center. Data on patients\' baseline characteristics, injuries, treatments, and outcomes were recorded up to one-year follow-up. Recorded outcomes included the Tegner-Lysholm Knee Scoring Scale (TLKSS), return to work, and patient satisfaction.
RESULTS: MLKI incidence was 0.03% among 9897 orthopedic trauma admissions. Twenty-four patients of mean age 43.6 years were included in analysis. The mean Injury Severity Score was 12.6. Five patients presented with knee dislocations and six had fracture-dislocations, two of them open fractures. There was one popliteal artery injury requiring a bypass and four common peroneal nerve palsies. Staged ligamental reconstruction was performed in all cases. There were seven postoperative complications. The median TLKSS was 80 and, though patient satisfaction was high, and dissatisfaction was largely restricted to recreational activities (only 58.3% satisfied). Seventeen patients returned to their previous employment.
CONCLUSIONS: We found a high aggregation of fracture-dislocations secondary to road traffic accidents. One in four patients experienced complications, particularly stiffness. Complications were more common in cases involving knee dislocation. Most patients had good functional results, but 25% were unable to return to their previous work, which demonstrates the long-lasting sequelae of this injury.

The proximal interphalangeal (PIP) joint is the articulating joint between the proximal and middle phalanges of the fingers. A dorsal fracture-dislocation of the PIP joint of the fingers with volar plate injuries is an uncommon injury. Few cases have been published in the literature. In this article, we report the case of a subluxation fracture of the PIP joint in a 27-year-old male patient, without pathological history, a manual worker, right-handed, diagnosed 28 days after the injury. The treatment was surgical with open reduction and fixation of the fragment of the base of P2 with osteosutures. The functional results after three months were satisfactory with good sagittal and frontal joint stability and active flexion of the PIP joint at 95° and active extension at 0°. The control radiographs confirm the consolidation of the osteochondral fragment of the base of P2. The patient returned to his usual activities without pain.

Dorsomedial fracture dislocations of the tarsal navicular are extremely rare injuries which commonly occur secondary to high energy, complex multidirectional forces involving an abduction force to a pronated and plantar-flexed foot. A 44-year-old female presented in the emergency room following a motor vehicle accident with a dorsomedial fracture dislocation of her navicular. Management required acute fusion of the talonavicular joint. There are few reports in the literature discussing the treating, outcomes, and complications of these injuries. Our report represents one method of treating these rare injuries with a favorable outcome.