PURPOSE To identify the anatomic features for clinical applications through a computational simulation of the fixation of three cannulated screws for a femoral neck fracture. MATERIALS AND METHODS Thirty cadaveric femurs underwent computed tomography and the images were transferred to the Mimics® program, resulting in three-dimensional proximal femur models. A three-dimensional scan of the 7.0 mm cannulated screw was performed to enable computerized virtual fixation of multiple cannulated screws for femoral neck fractures. After positioning the screws definitively for cortical support, the intraosseous position of the cannulated screws was evaluated in the anteroposterior image and axial image direction. RESULTS Three cannulated screws located at the each ideal site showed an array of tilted triangles with anterior screw attachment and the shortest spacing between posterior and central screws. The central screw located at the lower side was placed in the mid-height of the lesser trochanter and slightly posterior, and directed toward the junction of femoral head and neck to achieve medial cortical support. All the posterior screws were limited in height by the trochanteric fossa and were located below the vastus ridge, but the anterior screws were located higher than the vastus ridge in 10 cases. To obtain the maximum spacing of the anterior and posterior screws on the axial plane, they should be positioned parallel to the cervical region nearest the cortical bone at a height not exceeding the vastus ridge. CONCLUSION The position of cannulated screws for cortical support were irregular triangular arrangements with the anterosuperior apex. The position of the ideal central screw in the anteroposterior view was at the mid-height of the lesser trochanter toward the junction of the femoral head and neck, and the anterior and posterior screws were parallel to the neck with a maximal spread just inferior to the vastus ridge.
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Computational Simulation of Femoral Neck System and Additional Cannulated Screws Fixation for Unstable Femoral Neck Fractures and the Biomechanical Features for Clinical Applications Ju-Yeong Kim Journal of the Korean Fracture Society.2023; 36(1): 1. CrossRef
PURPOSE Twenty early surgical management cases of distal humerus type-C fractures were analyzed. MATERIALS AND METHODS This study analyzed 20 early patients, who received surgical management of distal humerus type-C fractures, and could be followed-ups for more than one year between March of 2013 and May of 2015. The operative time, bone union time, and elbow range of motion were analyzed. The Mayo's functional score was used to evaluate their postoperative function. The primary and secondary complications of each patient immediately after each of their surgery were also reviewed. RESULTS All patient groups achieved bone union within an average period of 16.4 weeks. Based on the Mayo functional score, 6, 10, and 4 patients scored excellent, good, and fair, respectively. The average range of motion was a flexion contracture of 14.5° with a follow-up improvement averaging 120.7°. Six patients received nine revision operations due to major and minor complications. Two patients received revision fixation from an inadequate fixating power, and another patient received an ulnar nerve transposition. Other complications included olecranon osteotomy site displacement, superficial operational site infection, and pin loosening. CONCLUSION Distal humerus fractures of the AO-C type can cause a range of complications and has a very high rate of revision due to its difficult nature of surgical manageability. Therefore, it is imperative for a surgeon to expect various complications beforehand and a careful approach to their postoperative rehabilitation is essential.
PURPOSE To analyze the factors that cause a posterior angulatory deformity in the retrograde intramedullary nailing of distal femoral fractures. MATERIALS AND METHODS Fifty-five patients with distal femur fractures who were treated with retrograde intramedullary nailing were enrolled in this study. They were followed-up for at least one year postoperatively. The posterior angulatory deformity was evaluated according to the fracture location, pattern, and insertion point and the insertion point was compared with the ideal point derived from the radiographs of 100 normal adults. The correlation between the posterior angulation and the entry point of the nail was analyzed. RESULTS The posterior angulation was similar in terms of the fracture location; a meaningful difference was noted among the fracture patterns (p=0.047). The posterior angulation was significantly greater when the entry point was located more posteriorly, accepting a malreduced state (p=0.012). CONCLUSION Posterior angulation was smaller in the transverse fracture and the posterior location of the entry point from the apex of the Blumensaat's line increased the posterior angulation.
Clay-Shoveler's fracture refers to a fracture that is solely developed on the spinous process of the cervical spine or the thoracic vertebrae. This fracture rarely occurs during sporting activities. In this case, an 18-year-old female developed the fracture on the spinous process of the 7th cervical spine and 1st thoracic vertebrae due to the repetitive practice of cheerleading. The patient's pain was improved by wearing a support device and taking an anti-inflammatory analgesic drug and muscle relaxant. Her case is being followed-up at the outpatient department.
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An unusual cause of neck pain in the physiotherapy clinic: Neglected clay-shoveler's fracture GaneshSingh Dharmshaktu Indian Journal of Physical Therapy and Research.2020; 2(2): 147. CrossRef
Hand fractures are the second most common fracture in the upper extremities after the distal radius, and patients with these injuries may be experienced in hand surgery clinics. On the other hand, during the treatment of hand fractures, complications can occur due to complex functions of the hand and small-sized injuries to the bone and soft tissues. This review focused on the principles of management of these fractures, including injury mechanism, evaluations and recent treatment options. Minimally invasive surgery in various types of hand fractures, including the phalanx and metacarpal bone, is preferred because early mobilization after surgery has been emphasized to reduce complications, such as stiffness.
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Distal radius fractures are a common upper extremity fracture and a considerable number of patients have a stable fracture. In the treatment of distal radius fractures, there is considerable disagreement regarding the need for a strict anatomical restoration with operation in elderly patients. Therefore, nonsurgical treatment is a still important treatment option in distal radius fractures. The radiological parameters of before or after manual reduction are important for deciding whether to perform operation or not. The radiological parameters include dorsal angulation of the articular surface, radial shortening, extent of dorsal comminution, intra-articular displacement, concomitant ulnar metaphyseal fracture, shear fracture, and fracture-dislocation of the distal radio-ulnar joint. In addition, clinical situations of patients, including age, activity level, underline disease, and recovery level, which the patients wish should be considered, comprehensively. For the duration of a splint or cast, three to four weeks are recommended in impacted or minimally displaced fractures and five to six weeks in displaced fractures. After reduction of the displaced fractures, patients should undergo a radiologicical examination every week to check the redisplacement or deformity of the fracture site until two or three weeks post trauma. Arm elevation is important for controlling fracture site swelling and finger exercises, including metacarpophalangeal joint motion, are needed to prevent hand stiffness. Active range of motion exercise of the wrist should be initiated immediately after removing the splint or cast.
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The Clinical Effect of Rehabilitation Protocol for Distal Radius Fracture in Korean Medicine: A Report of 3 Cases Won-Bae Ha, Ji-Hye Geum, Nak-Yong Koh, Jung-Han Lee Journal of Korean Medicine Rehabilitation.2018; 28(3): 97. CrossRef