A COMPARATIVE  STUDY ON NECK SHAFT ANGLE AND LENGTH  FEMUR IN SOUTH GUJARAT

Introduction and Aim: Extensive examination of the femoral anthropometry has been commonly accepted to disclose sexual differentiation. The current study was carried out to evaluate various measurements of the pathologically fit femora of the unknown sex to differentiate the sex of the femora. Materials and Methods: Each femur was meticulously assessed and analyzed for six specific parameters such as maximal length, proximal breadth, and head circumference, mid-shaft circumference, vertical diameter, and neck-shaft angle of the femur bone. All the measurements were statistically analyzed and tabulated. Results:The results were highly significant to all the parameters thereby concluding that an individual’s sex can be determined by examining the femora. Conclusion:The results leave a huge scope for validation over a larger sample size focussing on an extensive human race.

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Reconstruction of the Hip in Multiple Hereditary Exostoses

Children ◽

10.3390/children8060490 ◽

2021 ◽

Vol 8 (6) ◽

pp. 490

Author(s):

Dong Hoon Lee ◽

Dror Paley

Keyword(s):

Hip Joint ◽

Joint Involvement ◽

Neck Shaft Angle ◽

Multiple Hereditary Exostoses ◽

Femur Neck ◽

Radiographic Outcomes ◽

Surgical Dislocation ◽

Center Edge ◽

Shaft Angle ◽

Coxa Valga

The hip joint involvement in multiple hereditary exostoses (MHE) occurs in 30–90%, causing pain and limitation of motion by femoroacetabular impingement, coxa valga, acetabular dysplasia, hip joint subluxation, and osteoarthritis. The purpose of this study was to investigate the clinical and radiographic outcomes of ten hips in seven patients treated by surgical dislocation and corrective osteotomies between 2004 and 2009. Surgical dislocation and excision of the osteochondromas and varus intertrochanteric osteotomies were performed in all cases when the neck–shaft angle was > 150°. Common sites of osteochondromas were medial, posterior, and anterior neck of the femur. Neck–shaft angle of the femur was improved from a mean of 157° to 139°, postoperatively. On an average, the center-edge angle improved from 20° to 30° postoperatively. We believe that Ganz’s safe surgical dislocation technique is the preferred treatment of MHE. This safeguards the circulation of the femoral head and the osteochondromas can be resected under direct vision. It can be combined with additional corrective osteotomies because the hip affected by MHE is frequently associated with dysplastic changes which can result in premature osteoarthritis.

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The association between femoral neck shaft angle and degenerative disease of the hip in a cadaveric model

Hip International ◽

10.1177/11207000211013029 ◽

2021 ◽

pp. 112070002110130

Author(s):

Leigh-Anne Tu ◽

Douglas S Weinberg ◽

Raymond W Liu

Keyword(s):

Femoral Head ◽

Femoral Neck ◽

Hip Osteoarthritis ◽

Volume Ratio ◽

Femoral Head Coverage ◽

Neck Shaft Angle ◽

Hip Arthritis ◽

Femoral Version ◽

Shaft Angle ◽

The Impact

Background: While the influences of acetabular dysplasia and overcoverage on hip arthritis have been studied, the impact of femoral neck-shaft angle on hip arthritis is much more poorly understood. The purpose of this study is to determine if a relationship exists between neck shaft angle and the development of osteoarthritis, a better understanding of which would be useful to surgeons planning osteotomies about the hip. Methods: 533 cadaveric femora and acetabulae (1066 total) from the Hamann-Todd Osteological Collection (Cleveland, OH) were acquired. We measured true neck shaft angle using an AP photograph with the femoral neck parallel to the table. Femoral head volume to acetabular volume ratio, representing femoral head coverage, as well as femoral version were utilised. Correlation between neck shaft angle, femoral version, femoral head coverage and osteoarthritis were evaluated with multiple regression analysis. Results: The mean age and standard deviation was 56 ± 10 years. There were 64 females (12%) and 469 males. There were 380 Caucasians (71%) and 153 African-Americans. Mean femoral version was 11° ± 12° and mean true neck shaft angle was 127.7° ± 5.9° There was a strong correlation between age and arthritis (standardised beta 0.488, p < 0.001). There was a significant correlation between increasing true neck shaft angle and decreasing hip arthritis (standardised beta -0.024, p = 0.038). In the femoral head overcoverage subset, increasing true neck shaft angle was still significantly associated with decreasing hip arthritis (standardised beta −0.088, p = 0.018), although this relationship was not significant with femoral head undercoverage subset. Conclusions: With sufficient acetabular coverage, a relative increase in femoral neck shaft angle within the physiologic range is associated with decreased hip osteoarthritis. Clinical relevance: An understanding of the relationship between femoral neck shaft angle and hip osteoarthritis could be useful for surgeons planning pelvic or proximal femur osteotomies in children.

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Femoral Version, Neck-Shaft Angle, and Acetabular Anteversion in Chinese Han Population

Medicine ◽

10.1097/md.0000000000000891 ◽

2015 ◽

Vol 94 (21) ◽

pp. e891 ◽

Cited By ~ 12

Author(s):

Nan Jiang ◽

Lin Peng ◽

Mohammed Al-Qwbani ◽

Guo-Ping Xie ◽

Qin-Meng Yang ◽

...

Keyword(s):

Chinese Han Population ◽

Acetabular Anteversion ◽

Chinese Han ◽

Han Population ◽

Neck Shaft Angle ◽

Femoral Version ◽

Shaft Angle

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The effect of neck-shaft angle, glenosphere size, and cup depth on contact mechanics in reverse shoulder arthroplasty

Journal of Shoulder and Elbow Surgery ◽

10.1016/j.jse.2016.07.044 ◽

2016 ◽

Vol 25 (10) ◽

pp. e320-e322

Author(s):

G. Daniel G. Langohr ◽

Ryan Willing ◽

John B. Medley ◽

James A. Johnson ◽

George S. Athwal

Keyword(s):

Contact Mechanics ◽

Shoulder Arthroplasty ◽

Reverse Shoulder Arthroplasty ◽

Neck Shaft Angle ◽

Shaft Angle

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Contact mechanics of reverse total shoulder arthroplasty during abduction: the effect of neck-shaft angle, humeral cup depth, and glenosphere diameter

Journal of Shoulder and Elbow Surgery ◽

10.1016/j.jse.2015.09.024 ◽

2016 ◽

Vol 25 (4) ◽

pp. 589-597 ◽

Cited By ~ 36

Author(s):

G. Daniel G. Langohr ◽

Ryan Willing ◽

John B. Medley ◽

George S. Athwal ◽

James A. Johnson

Keyword(s):

Contact Mechanics ◽

Shoulder Arthroplasty ◽

Total Shoulder Arthroplasty ◽

Reverse Total Shoulder Arthroplasty ◽

Neck Shaft Angle ◽

Shaft Angle ◽

Reverse Total Shoulder

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Does hip morphology correlate with proximal femoral fracture type?

Hip International ◽

10.1177/1120700019859275 ◽

2019 ◽

Vol 30 (5) ◽

pp. 629-634

Author(s):

Gilad Rotem ◽

Zachary T Sharfman ◽

Ehud Rath ◽

Aviram Gold ◽

Gil Rachevsky ◽

...

Keyword(s):

Hip Fractures ◽

Alpha Angle ◽

Fracture Type ◽

Crossover Sign ◽

Hip Axis Length ◽

Neck Shaft Angle ◽

Hip Morphology ◽

Shaft Angle ◽

Axis Length ◽

Neck Diameter

Purpose: To determine if boney morphology influences the anatomic location of hip fractures in elderly patients. Methods: All patients with hip fractures between 2008 and 2012 who had hip radiographs taken prior to the fracture were reviewed. Fractures were classified as intracapsular or extracapsular and hip morphology was measured on the pre-fracture x-rays. Hip morphology was determined by alpha angle, lateral central edge angle, acetabular index, neck-shaft angle, hip axis length, femoral neck diameter, Tönnis classification for hip osteoarthritis (OA) and the presence of a crossover sign. Results: 148 subjects (78.4% female, age 83.5 years) with proximal femur fractures were included. 44 patients (29.7%) had intracapsular fractures and 104 (70.3%) had extracapsular fractures. 48% of patients had previous hip fractures on the contralateral side and 74.6% had the same type of fracture bilaterally. The rates of bilateral intracapsular and extracapsular fractures were similar (33.7% vs. 40.9% respectively, p = 0.39). Extracapsular fractures had a statically significant higher neck-shaft angle, a shorter hip axis length, a narrower femoral neck diameter and a higher grade of Tönnis classification of OA ( p = 0.04, 0.046, 0.03, 0.02 respectively). Acetabular coverage and the proximal femoral head-neck junction, which were evaluated by lateral centre-edge angle (LCEA), acetabular index and the presence of a crossover sign, did not correlate with fracture type. The alpha angle > 40° had a statistically significant higher likelihood for extracapsular fractures ( p = 0.013). Conclusions: Acetabular coverage and proximal femoral head-neck junction morphology, were found to partially correlate with the location of hip fractures and do not fully elucidate fracture type susceptibility.

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Simultaneous Morscher’s osteotomy and arthroscopic debridement in the management of Legg–Calvé–Perthes disease: a case report and literature review

Journal of Hip Preservation Surgery ◽

10.1093/jhps/hnab017 ◽

2021 ◽

Vol 8 (Supplement_1) ◽

pp. i4-i8

Author(s):

Batool Bosakhar ◽

Hassan Baldawi ◽

Kathy Liu ◽

Olufemi R Ayeni ◽

Waleed Kishta

Keyword(s):

Case Report ◽

Literature Review ◽

Femoral Neck ◽

Perthes Disease ◽

Labral Repair ◽

Coxa Vara ◽

Neck Shaft Angle ◽

Shaft Angle ◽

Outcome Tool

Abstract There is a lack of consensus around optimal surgical management for Legg–Calvé–Perthes Disease (LCPD). This case report discusses the benefits of combining arthroscopic femoral neck osteochondroplasty and labral repair with Morscher’s Osteotomy (MO) for LCPD. S.A. is a 17-year-old female diagnosed with LCPD at the age of 6 years and has long-standing right hip symptoms. An arthroscopic femoral neck osteochondroplasty and labral repair followed by MO was performed. The pre-operative and 8 months post-operative International Hip Outcome Tool (iHOT-12) scores were 16.3 and 79.8 out of 100, respectively, indicating better quality-of-life. Also, the femoral neck-shaft-angle (NSA) changed from 120 pre-operative to 138.7 post-operative to represent the correction of coxa vara. The literature review revealed no published reports describing combined MO with hip arthroscopic interventions in managing LCPD. Combined arthroscopic femoral neck osteochondroplasty (with labral repair) and MO provides high patient satisfaction and improves radiographic parameters in patients with LCPD.

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Sexual Variations of Femoral Neck-Shaft Angle in the Population of Odisha

Journal of Evolution of Medical and Dental Sciences ◽

10.14260/jemds/2021/293 ◽

2021 ◽

Vol 10 (19) ◽

pp. 1387-1390

Author(s):

Rajeev Kumar Kanchan ◽

Sonali Subhadarsini ◽

Dharma Niranjan Mishra ◽

Chinmayi Mohapatra

Keyword(s):

Femoral Neck ◽

Ventral Surface ◽

Cross Sectional Study ◽

Cross Sectional ◽

Legal Cases ◽

Male And Female ◽

Neck Shaft Angle ◽

Femur Neck ◽

Shaft Angle ◽

The Right

BACKGROUND The peculiar waddling gait of a female attracts most of the anatomists to measure and compare the neck-shaft angle (NSA) of the femora. The femoral neck shaft angle is greater in women due to greater pelvic breadth and shorter femur. Neck-shaft angle was measured by the angle that the neck makes with the shaft of the femur and it is measured on the ventral surface of femur taking the long axis of femoral neck with the long axis of the proximal end of the femur. It gives information about the race it belongs to and normally measures 120° to 140°. The intention of this study was to establish the femoral neck shaft angle variations in adult male and female for medico-legal and anthropometric studies. METHODS This cross-sectional study was conducted on 84 adult human femora of unknown sex in the anatomy department, Sriram Chandra Bhanja (SCB) Medical College, Cuttack, Odisha, from May 2018 to April 2019. We included all the femora which were free of damage or deformity and fully ossified indicating adult bone. Femora with any pathological changes i.e., cortical bone deterioration, extreme osteophyte activity, osteoarthritis and fracture etc. were excluded from the study. The NSA was measured by protractor and goniometer. RESULTS In the present study the NSA range for the right femur of male was 108° - 135° and for the right femur of females 117° - 135°. The left male femur was 118° - 135° and the left female femur was 120° - 135°. The mean neck shaft angle of male femora was 125.9° and the female femora was 125.7°. These measurements show that the values were more in males than the females. The value of the present study was statistically significant between male and female i.e., P < 0.0001. CONCLUSIONS These measurements are important in the medico-legal cases, reconstructive orthopaedic surgeries, hip replacement surgeries and also while constructing suitable prosthesis. This will also be helpful in the detection of sex by anatomists and forensic experts. KEY WORDS Neck Shaft Angle, Medico-Legal, Anthropometry and Goniometer

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