Journal of Musculoskeletal Trauma

Osteoporotic Hip Fracture: How We Make Better Results?: Byung-Chan Choi, Kyung-Jae Lee; J Korean Fract Soc 2024;37(1):52-59. Published online January 31, 2024; DOI: https://doi.org/10.12671/jkfs.2024.37.1.52

Abstract PDF: The prevalence of osteoporosis and incidence of osteoporotic fractures is increasing gradually as life expectancy is prolonged and the aged population increases. Osteoporotic hip fractures (femoral neck fractures and femoral intertrochanteric fractures) have high mortality because the patients with these fractures are elderly and have several comorbidities. Thorough preparation and a multidisciplinary approach in the preoperative period are critical, and early surgery is recommended. There are also several principles to treat osteoporotic hip fractures and prevent fixation failures. Many studies have suggested various treatment methods for femoral neck fractures and femoral intertrochanteric fractures. Functional recovery treatment is essential based on the patient’s health and activity levels. Finally, aggressive management of osteoporosis and the prevention of falling is needed to treat osteoporotic hip fractures successfully.

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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; J Korean Fract Soc 2023;36(1):1-9. Published online January 31, 2023; DOI: https://doi.org/10.12671/jkfs.2023.36.1.1

Abstract PDF: Purpose
To identify the biomechanical features for clinical applications through a computational simulation of the fixation of the Femoral Neck System (FNS) with additional cannulated screws for a Pauwels type III femoral neck fractures.
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 FNS and 6.5 mm and 7.0 mm cannulated screws was performed to enable computerized virtual fixation of FNS with additional cannulated screws for unstable femoral neck fractures. Furthermore, the cannulated screw used for additional fixation was modeled and used as a cylinder within the Ansys program. The biomechanical characteristics of these models were investigated by applying a physiological load virtually.
Results
The maximum von Mises stress value at bone was 380.14 MPa in FNS and 297.87 MPa in FNS+7.0 mm full-thread cannulated screw. The maximum von Mises stress value at FNS was 786.83 MPa in FNS and 435.62 MPa in FNS+7.0 mm full-thread cannulated screw. The FNS group showed the highest maximum von Mises stress values at bone and FNS. For total deformation, the maximum deformation value was 10.0420 mm in FNS and 9.2769 mm in FNS+7.0 mm full-thread cannulated screws. The FNS group represented the highest maximum deformation compared to the other groups.
Conclusion
Considering the anatomical spatiality and biomechanical characteristics of the FNS in unstable femoral neck fractures, when one 7.0 mm full thread cannulated screw was also fixed to the anterosuperior portion of the FNS, significant biomechanical stability was demonstrated.

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Pediatric Femoral Neck Fracture: Joo Hyung Han, Hoon Park; J Korean Fract Soc 2021;34(1):34-43. Published online January 31, 2021; DOI: https://doi.org/10.12671/jkfs.2021.34.1.34

Abstract PDF: Pediatric femoral neck fracture is an uncommon injury with a high complication rate, regardless of the appropriate diagnosis and management. The bony anatomy and blood supply of the proximal femur in a skeletally immature patient differ from those in adult patients. Generally, these fractures result from high-energy trauma, but pathologic hip fractures also occur, usually from low-energy trauma. Pediatric femoral neck fractures are categorized using the Delbet classification system. This classification guides management and aids clinicians in determining the risk of avascular osteonecrosis. The ideal surgical treatment is determined by the fracture type and the age of the patient. Reduction, which is achieved using a closed or open procedure, combined with stable fixation and/or cast immobilization, is recommended for most of these fractures. Anatomical reduction within 24 hours from the injury may result in a good surgical outcome. Although the effects of capsular decompression after reduction and fixation have not been established, decompression is easy to perform and may reduce the risk of avascular necrosis. Despite appropriate management, osteonecrosis can occur after all types of pediatric femur neck fractures. Other complications include coxa vara, nonunion, and premature physeal arrest.

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Rare Experience of Bilateral Femoral Neck and Shaft Fractures - A Case Report -: DaeHyun Choe, Jae-Ho Lee, Ki-Chul Park; J Korean Fract Soc 2020;33(3):154-158. Published online July 31, 2020; DOI: https://doi.org/10.12671/jkfs.2020.33.3.154

Abstract PDF: Ipsilateral fractures of the femoral neck and shaft are relatively common injuries and accompany 2% to 9% of all femoral shaft fractures. On the other hand, it is extremely rare for these injuries to occur bilaterally. This paper reports the authors’ experience of a case with bilateral femoral neck and shaft fractures. The patient sustained multiple injuries, including liver laceration with hemoperitoneum, bilateral open fractures of the tibia, and bilateral femoral neck, and shaft fractures caused by a high-speed motor vehicle accident. Under the circumstances, damage-control orthopedic principles were applied, and external fixators were initially placed. After the patient’s general condition showed improvement, both femurs were fixed with a reconstruction nail. Fracture healing was achieved without complications, such as avascular necrosis of the femoral head. Despite the rare occurrence, this paper describes this case because these injuries must be managed with meticulous attention.

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Factors Predicting Complications after Internal Fixation of Femoral Neck Fractures: Tae Ho Kim, Jong Oh Kim, Sung Sik Kang; J Korean Fract Soc 2009;22(2):79-84. Published online April 30, 2009; DOI: https://doi.org/10.12671/jkfs.2009.22.2.79

Abstract PDF: PURPOSE
To evaluate the factors predicting complications after internal fixation using multiple cannulated screws in the patients with femoral neck fracture, the authors performed a comparative study of a success group and a failure group and reviewed the literature.
MATERIALS AND METHODS
Sixty-eight patients with intracapsular femoral neck fractures were treated by multiple pinning from January 2000 to July 2007 and followed up more than one year. Relationships between the complications such as failure of union, collapse of femoral head due to osteonecrosis of femoral head and several affecting factors including the degree of displacement by Garden stage, state of reduction, position of screws, patient's age, time interval from injury to operation, anatomical fracture site and two weeks postoperative (99m)Tc-MDP bone scan were analyzed.
RESULTS
Statistically significant factors were the degree of displacement by Garden stage (p<0.001), reduction state (p<0.001) and postoperative two weeks (99m)Tc-MDP bone scan (p<0.001).
CONCLUSION
An accurate anatomical reduction is needed to decrease complications with multiple cannulated screws fixation of femoral neck fracture. Displacement of fracture by Garden stage and (99m)Tc-MDP bone scan are major factors predicting complications.

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Bipolar Hemiarthroplasty for the Femoral Neck Fractures in Elderly Patients: Woong Kyo Jeong, Sang Won Park, Soon Hyuck Lee, Jong Hoon Park, Suk Ha Lee, Ji Hoon Kang, Gi Won Choi, Won Noh; J Korean Fract Soc 2008;21(1):8-12. Published online January 31, 2008; DOI: https://doi.org/10.12671/jkfs.2008.21.1.8

Abstract PDF: PURPOSE
To evaluate the clinical results of bipolar hemiarthroplasty in elderly patients more than 65 years of age with a femoral neck fracture.
MATERIALS AND METHODS
Forty-six bipolar hemiarthroplasties in 43 patients more than 65 years of age which could be followed more than 3 years were included in this study. The clinical outcomes were evaluated using Harris hip score, pain score and support score. The radiological results were analyzed by femoral stem loosening and bipolar cup migration.
RESULTS
The average Harris hip score was 88.7 (62~96) points. An excellent score was recorded in 34 cases, good in 7 cases, fair in 3 cases and poor in 2 cases. The average pain score was 39.3 points and there were no pain in 20 cases, slight pain in 17 cases, mild pain in 6 cases and moderate pain in 2 cases. The average support score was 9.6 points and 32 patients could walk without the use of any assistive devices. Two cases were converted to total hip arthroplasty due to femoral stem loosening with or without bipolar cup migration.
CONCLUSION
For the early ambulation and functional recovery of elderly patients with femoral neck fracture, bipolar hemiarthroplasty was considered as one of recommendable methods.

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Analysis of Affecting Factors of Fixation Failure of Femoral Neck Fractures Using Internal Fixation: Soo Jae Yim, Seung Han Woo, Min Young Kim, Jong Seok Park, Eung Ha Kim, Yoo Sung Seo, Byung Il Lee; J Korean Fract Soc 2006;19(3):297-302. Published online July 31, 2006; DOI: https://doi.org/10.12671/jkfs.2006.19.3.297

Abstract

PURPOSE
To evaluate the factors which influence on the fixation failure after internal fixation using multiple cannulated screws in the patients with femoral neck fracture.
MATERIALS AND METHODS
Ninty-six patients (male: 63, female: 33) who underwent closed reduction and internal fixation of femoral neck fracture between Feb. 1994 and Jun. 2002 with use of multiple cannulated screws. The mean age was 68 years (17~90) and mean follow-up period was average 50 months (36 months~6 years). The fixation failure was defined by change in fracture position above 10 mm, change in each screws position above 5%, backing above 20 mm, or perforation of the head, respectively. They were evaluated with the age, gender, fracture type, accuracy of reduction, placement of screws, posterior comminution and also studied the risk factors which influenced nonunion and the development of avascular necrosis.
RESULTS
Twenty-four patients out of 96 patients had radiographic signs of fixation failure. The incidence of nonunion in the fixation failure group was 41% (10/24) and AVN was 33% (8/24). There were statistically significant correlations between fixation failure and nonunion and that posterior comminution, poor reduction and improper placement of the screws were the major factors contributing to nonunion.
CONCLUSION
In case of femoral neck fracture of internal fixation using multiple cannulated screws, posterior comminution, poor reduction and improper placement of the screws were the major factors contributing to nonunion and fixation failure.

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Clinical Results of Internal Fixation of Subcapital Femoral Neck Fractures
Joon Soon Kang, Kyoung Ho Moon, Joong Sup Shin, Eun Ho Shin, Chi Hoon Ahn, Geon Hong Choi
Clinics in Orthopedic Surgery.2016; 8(2): 146. CrossRef
Internal Fixation for Femoral Neck Fracture in Patients between the Ages of Twenty and Forty Years
Ui-Seoung Yoon, Jin-Soo Kim, Hak-Jin Min, Jae-Seong Seo, Jong-Pil Yoon, Joo-Young Chung
Journal of the Korean Fracture Society.2010; 23(1): 1. CrossRef
Factors Predicting Complications after Internal Fixation of Femoral Neck Fractures
Tae-Ho Kim, Jong-Oh Kim, Sung-Sik Kang
Journal of the Korean Fracture Society.2009; 22(2): 79. CrossRef

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Factors Predisposing to Complications After Internal Fixation of Femoral Neck Fracture: Sang Won Park, Chang Yong Hur, Jong Ryoon Baek, Seong Jun Park; J Korean Soc Fract 2003;16(4):441-446. Published online October 31, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.4.441

Abstract PDF

PURPOSE
To analyze the factors predisposing to complications after internal fixation of femoral neck fracture.
MATERIALS AND METHODS
We reviewed retrospectively the results of percutaneous internal fixation of femoral neck fracture using multiple pinning, in 52 cases who were treated from Jan. 1996 to Dec. 2001. Relationship between the complications and several factors such as the age, sex, time interval from injury to operation, Garden stage, Singh index, internal fixation device and state of redction were analyzed.
RESULTS
The functional results by Lunceford criteria were excellent in 23 cases (44%), good in 15 cases (29%), fair in 2 cases (3.8%) and poor in 12 cases (23.1%). The avascular necrosis of the femoral head were occured in 14 cases (26.9%). Among these, 1 case of non-union, 2 cases of mal-union were accompanied. No stastically significant relationship between the age, sex, time interval from injury to operation, Garden stage, Singh index, internal fixation device, state of redction and complication. However, there was 4 times higher complication rate in Garden stage 3 or 4 group than its rate in Garden stage 1 (odds ratio 3.889), and 3 times higher complication rate in non-anatomical reduction group (odds ratio 3.22).
CONCLUSION
Factors predisposing to complications after internal fixation of femoral neck fracture seemed to closely relate with Garden stage and state of reduction.

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Bipolar Hemiarthroplasty for the Femoral Neck Fractures in Elderly Patients
Woong-Kyo Jeong, Sang-Won Park, Soon-Hyuck Lee, Jong-Hoon Park, Suk-Ha Lee, Ji-Hoon Kang, Gi-Won Choi, Won Noh
Journal of the Korean Fracture Society.2008; 21(1): 8. CrossRef

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Femoral Neck Fracture in Bilateral Above Knee Amputee: A Case Report: Kye Young Han; J Korean Soc Fract 2003;16(1):116-119. Published online January 31, 2003; DOI: https://doi.org/10.12671/jksf.2003.16.1.116

Abstract PDF: Femoral neck fracture is a common fracture in elderly or osteoporotic women. But femoral neck fracture in previously amputed patients is rare, so the guideline of appropriate treatment is rarely discussed. Especially, femoral neck fracture in patients with above knee amputation was more rare. Hereby I report a case of femoral neck fracture occurred to 58-year-old male bilateral above knee amputee with the review of literatures.

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Impacted Cancellous Allograft and Quadratus Femoris Pedicle Bone Graft of Femoral Neck Fracture Nonunion: Soo Jae Yim, Seung Han Woo; J Korean Soc Fract 2002;15(4):519-525. Published online October 31, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.4.519

Abstract PDF: PURPOSE
The aim of this study was attempted to evaluate the effects of impacted cancellous allograft and quadratus femoris pedicle bone graft in the management of nonunion of femur neck fracture.
MATERIALS AND METHODS
Between March 1998 and April 1999, 5 patients, rating from 36 to 45 years of age, were treated with impacted cancellous allograft and quadratus femoris pedicle bone graft and all cases were nonunion with displaced transcervical fracture whose primary treatment had been done with closed reduction and multiple pinning. The duration of follow-up was from 36 months to 48 months and the mean follow-up period was 40 months. Clinical evaluation was done according to Lunceford functional results and radiologically bone union was evaluated by 3 monthly X-ray check.
RESULTS
After follow-up from 36 months to 48 months, all cases resulted in the bone union. Four cases, radiologically bone union was progressed during 14 weeks, and the other, obtained at 6 months. All cases, at 18 months, radiologically complete bone union was obtained. Clinical result was above fair results and no one complaints pain and instability.
CONCLUSION
For patients with nonunion of femoral neck fracture, impacted cancellous allograft and quadratus femoris pedicle bone graft was provide a good result of union.

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The Significance of Posterior Cortex in Complicated Femoral Neck Fractures which were Internal Fixated: You Sung Suh, Seok Bong Jung, Soo Jae Yim, Jong Seok Park, Byung Ill Lee; J Korean Soc Fract 2002;15(4):511-518. Published online October 31, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.4.511

Abstract PDF: PURPOSE
When a surgeon carries out an operative treatment on a patient who has fractures of the femoral neck, he decides to do either the internal fixation for bony union or the aggressive treatment according to his experience and preparation, not according to the objective standard. The aim of this retrospective study is to prepare a guideline for the operative method.
MATERIALS AND METHODS
We analyse possible factors of the patient who has nonunion, avascular necrosis and loss of fixation after doing internal fixation in femoral neck fractures RESULTS: In this treated case of femoral neck, the appearance of complications are influenced by the maintenance of internal fixation, shape of fractures, osteoporosis, and the position of fixations; but in the complicated cases without the loss of fixation, the shape of fractures always have posterior cortical communition.
CONCLUSION
When we choose between simple fixation and aggressive treatments in cases of fractures of the femoral neck, we must treat according to the patient 's condition, displacement of the fracture, operative technique and existence of a posterior cortical comminuted fracture.

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Treatment of Pertrochanteric Fracture with Femoral Neck Fracture: Weon Yoo Kim, Chang Whan Han, Woo Sung Choi, Jong Hoon Ji, Chang Youn Moon, Jin Young Kim; J Korean Soc Fract 2002;15(3):307-311. Published online July 31, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.3.307

Abstract PDF: OBJECTIVES
To establish the precise diagnosis of a comminuted pertrochanteric fracture with femoral neck fracture in a senile osteoporotic patient and report of a preliminary clinical results of early bipolar hemiarthroplasty. MATERIAL & METHODS: Consecutive seven cases of comminuted pertrochanteric fractures who were suspicious to have combination with femoral neck fracture were evaluated. All cases had routine radiographs and CT scans of proximal femur and performed with bipolar hemiarthroplasties. Observation of the retrieved femoral head to evaluate a fracture and recorded with photograph. Postoperative evaluation was done with Daubine & Postel clinical grading with medical recording and personal telephone. The clinical evaluation was focused on the recovery for preinjured walking distance.
RESULTS
All patients were proved to have combination with pertrochanteric fractures and femoral neck fractures. In addition, all patients were recovered to more than good in clinical grading and pre-injured walking distance.
CONCLUSION
To make a precise diagnosis of pertrochanteric fractures with femoral neck fracture it is recommended to perform the CT scan with prompt reading of the simple radiographs in suspicious case. An early bipolar hemiarthroplasty was also recommended to treat this kind of senile difficult fracture.

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Complications and Affecting Factors for Intracapsular Femoral Neck Fractures Treated by Multiple Pinning: Sung Jung Kim, Shin Yoon Kim, Gi Bong Cha, Chang Wug Oh, Il Hyung Park, Joo Chul Ihn; J Korean Soc Fract 2002;15(2):201-208. Published online April 30, 2002; DOI: https://doi.org/10.12671/jksf.2002.15.2.201

Abstract PDF

PURPOSE
To investigate the relationship between the complications of intracapsular femoral neck fractures treated by multiple pinning and several affecting factors.
MATERIALS AND METHODS
Sixty-eight patients with intracapsular femoral neck fractures were treated by multiple pinning from March 1993 to January 2000 and followed at more than one year. Relationship between the complications such as failure of union, collapse of femoral head due to osteonecrosis of femoral head and several affecting factors including displacement of fracture according to Garden stage, state of reduction, position of screws, time interval from injury to operation, and fracture level were analyzed. The Fisher exact test, chi-square test, and multivariate logistic regression analysis were used to find the relevant factors influencing incidence of complications. Statistical significance was set at p < 0.05.
RESULTS
Position of screw was the most important single factor affecting the results of treatment of intracapsular femoral neck fracture (p=0.046). Moreover, the Garden stage and position of screw were revealed affecting the incidence of complications together with other factors (each p value was 0.028 and 0.027).
CONCLUSION
We considered that satisfactory position of screw was important to reduce complications after multiple pinning for intracapsular femoral neck fracture. And the results of operation also seemed to closely relate with multiple factors including Garden stage and status of reduction.

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Factors Predicting Complications after Internal Fixation of Femoral Neck Fractures
Tae-Ho Kim, Jong-Oh Kim, Sung-Sik Kang
Journal of the Korean Fracture Society.2009; 22(2): 79. CrossRef

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Treatment of Femoral Neck Fracture by Osteosynthesis: Won Yong Sohn, Hong Chul Lim, Seung Joo Jeon, Ky Sung Kim; J Korean Soc Fract 1999;12(1):6-12. Published online January 31, 1999; DOI: https://doi.org/10.12671/jksf.1999.12.1.6

Abstract PDF: We reviewed respectively the results of treatment of femotal neck fracture using ostesoynthetic methods, in 29 patients who were treated at the Department of Orthopedic Surgery, Guro hospital, Korea university, from January 1991 to December 1995. 20 cases were stabilized by cannulated hip screw, 6 cses by compression hip screw and 3 cases by Knowles pin. With the average follow up of 26 months (12-45 months), we analtzed the cauwe of injury with age, fracture types by Gardens method, the accuracy of reduction by Gardens alignment index and the functional results of the hip by Harris hip score and walking capacity. The adequacy of reduction by Gardens alignment index were as follows: anatsmical in 14, acceptable in 12 and poor in 3 cases. The fnetional results by Harris hip score and walking capacity were as follows : excellent in 21, good in 3, fair in 2 and poor in 3 cases. Complications after treatment of femoral neck fracture were one case of AVN, one case of non-union and two cases of combination of AVN and non-union. All these complications were developed in displaced femoral neck fracture with poor quality of reduction and directly correlated with initial displacement of fracture and reversely correlated with adequacy of reduction. Our concluwions are treatment of femoral neck fracture using osteosynthesis is favorable in young age regardless of intial displacement and in old age without osteoporosis and displacment and satisfactory results are produced from acceptable to anatomical reduction of fracture.

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Clinical Analysis of Avascular Necrosis of the Femoral Head following femoral Neck Fracture: You Sung Suh, Kyung Dae Min, Byung Joon Shin, Byung Ill Lee, Yeon Ill Kim, Soo Kyun Rah, Chang Uk Choi; J Korean Soc Fract 1998;11(2):304-312. Published online April 30, 1998; DOI: https://doi.org/10.12671/jksf.1998.11.2.304

Abstract PDF: Post-traumatic avascular necrosis is a notorious complication of intracapsular fractures of the femoral neck, whether or not the fracture unites. The incidence of avascular necrosis of the femoral head following femoral neck fractures has been reported variably ranged from 7% to 84%. The purposes of this study are to analysis the clinical features of avascular necrosis of the femoral head following femoral neck fractures and to define causative factors of posttraumatic avascular necrosis. From May 1986 to May 1995, sixty-eight patients with intracapsular femoral neck fracture were operated on osteosynthesis in soonchunhyang University Hospital; we analysed retrospectively with follow-up more than two years, post-traumatic avascular necrosis(AVN) was developed in 13 patients(AVN group) and united forty-six patients were included non-avascular necrosis group, nine patients were excluded due to nonunion. Comparative study was performed between these two groups. The results were as follows: 1. The avascular necrosis of the femoral head following femoral neck fractures treated with osteosynthesis was noted in 13 cases (19%) 2. The eleven cases of 13 cases showed segmental collapse of the femoral head within 2 years. 3. Among the causative factors, age and sex, delay before operation and fixation device have no statistical significance(p>0.05) but type of fracture, initial displacement and quality of reduction showed to be statistical correlation(p<0.05). In conclusion, adequate reuction and internal fixation for the femoral neck fracture may essential to minimize avascular necrosis following osteosynthesis.

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Fracture of Femur Neck Associated with Technical Errors in Closed Intramedullary Nailing of the Femur: Yong Hoon Kim, Ki Chan Ahn, Sung Suk Seo, Young Chang Kim, Jang Suk Choi, Young Gu Lee; J Korean Soc Fract 1997;10(1):73-78. Published online January 31, 1997; DOI: https://doi.org/10.12671/jksf.1997.10.1.73

Abstract PDF: Closed intramedullary nailing has become increasingly popular in the management of fracture of the femur because of a high rate of union and a low rate of complications. Since the development, it has been widely used in more applicable level of femoral shaft fracture. Therefore, complications of intramedullary nailing was rarely seen, especially rare in case of fractures of the femoral neck associated with technical errors. The three cases of femoral neck fracture with technical errors during intramedullary nailing for treatment of femoral shaft fracture in Paik Hospital, Pusan from April 1994 to July 1995 are reported herein to document that this complication can occur. Three cases of the femoral neck fracture were treated by closed reduction and internal fixation with Knowles pin.

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Multiple Knowles Pin Fixations of the Femoral Neck Fractures in Adults under 60 Years of Age: Sang Won Park, Kwang Suk Lee, Dae Gon Wie; J Korean Soc Fract 1996;9(4):859-868. Published online October 31, 1996; DOI: https://doi.org/10.12671/jksf.1996.9.4.859

Abstract PDF: Femoral neck fracture is more common in elderly even by minor trauma because of osteoporosis. In young adults, though the incidence is low, have a poor prognosis because of high incidence of non-union and aseptic necrosis. The treatment method of the femur neck fracture is widely divided into internal fination and replacelnent arthroplasty But there is still contrversies present in the treatment methods. The object of this study is to observe the relationships between the clinical outcomes and the age, the degree of displacement. the type of reduction, the time of operation and the bone density in the femoral neck fractures treated with mulliple Knowles pin fitation. The authors analyzed 29 cases of femoral neck fractures in adults under 60 years of age, who were treated with multiple pih (ixation and followed up more than 1 yearduration The results obtained were as follows; 1. The union of femoral neck fracture occured in 19 cases(65.5%) among the 19 cases and the mean duration of union was 4.8 months. 2. The complications were 8 cases(21.6%) of avascular necrosis, 2 cases(6.9%) of non-union, 2 cases of malunion and 1 case of post-traumatic arthritis. 3. The functional results by Lunceford criteria were satisfactory in 17 cases (58.6%). 4. In the patient group which were no avascular necrosis and non-union showed 89.5% of satisfactory functional end result. 5. There was a relationship between the complications such as avascular necrosis and non-union, and age of the patient, bone density, degree of initial displacement and type of reduction. But the duration between the injury and operation did not influence the complication rate. According to the above results, we concluded that multiple Knowles pin fination in femoral neck fracture is simple and safe method, and one of salvaging method of femoral head in adults under 60 years of age.

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Treatment of Femoral Neck Fractures in the Elderly Patiene: Chung Nam Kang, Kwon Jae Roh, Yeo Hon Yun, Dong Jun Kim, Cheol Min Kim; J Korean Soc Fract 1995;8(1):61-67. Published online January 31, 1995; DOI: https://doi.org/10.12671/jksf.1995.8.1.61

Abstract PDF: We analyzed 41 femoral neck fractures in 40 elderly patients aged over 65 years. All of them were treated by surgery and followed for average 22 months (range, 14 to 52 months) at the Ewha Womans University Hospital from 1988 to 1992. Of these, 15 cases were treated with internal fixation and 26 cases with endoprosthetic or total hip replacement arthroplasty For the level of fractures the most common features were subcapital, that were moderately to severely (Gardens stage III or IV) displaced. In the internal fuation group the results were unsatisfactory in the cases of subcapital type, moderate to severe (Gardens stage III or IV) displacement, Pauwels type III and those with osteoporosis (below stage III in Singh index). Our short term follow-up results showed that the prosthetic replacement group were generally superior in that they were not affected by the types of fractures and the degree of osteoporosis.

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Clinical study of femoral neck fracture treatment is delayed more than 7 days: Dong Ki Lee, Taik Keun Ahn, Jong Oh Kim, Taik Seon Kim, Jai Ik Shim; J Korean Soc Fract 1991;4(2):243-247. Published online November 30, 1991; DOI: https://doi.org/10.12671/jksf.1991.4.2.243

Abstract PDF: No abstract available.

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Delayed Femoral Neck Fracture in Interlocking Intramedullary Nailed Femur: A case report: Sung Man Rowe, Eun Sun Moon, Eun Kyoo Song, Sung Taek Jung; J Korean Soc Fract 1989;2(2):269-273. Published online November 30, 1989; DOI: https://doi.org/10.12671/jksf.1989.2.2.269

Abstract PDF: We report an uncommon complication following interlocking intramedullary nailing of the femur: delayed femoral neck fracture after 5 months of unevenful postoperative course. He was a 47-year-old laborer with good quality of bone, nevertheless he sustained femoral neck fracture after minor fall on the ground. We thought that loss of bone elasticity caused by interlocked nail in the whole femoral shaft including intertrochanteric portion made stress concentration on the femoral neck to develop a fracture with minor magnitude of traumatic force.

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