1.Sensitive Balance Parameters in Detecting Age-related Changes of Balance Control in Elderly.
Heedong PARK ; Ji Hye HWANG ; Peter KW LEE ; Young keun WOO ; Nam Gyun KIM
Journal of the Korean Academy of Rehabilitation Medicine 2006;30(6):595-603
OBJECTIVE: To determine stability parameters in clinical balance tests and posturography that can assess age-related changes in posture control sensitively METHOD: Thirty nine healthy elderly people over 60 years old and twenty young controls were recruited. Elderly people were subdivided into 3 groups by age (aged 60~69, 70~79, over 80). Subjects were evaluated with clinical balance tests and posturography. In posturography, center of pressure (COP) parameters were obtained as total path distance, sway area, mean frequency of sway in comfortable standing. Visual feedback system (VFS) was added to posturography and then subjects were asked to move their COP into the target circle on monitor with active movement on force plate. In VFS, time to get in the circle, total path of deviation, time in the circle were measured. RESULTS: Time in the circle assessed by posturography with VFS showed significant difference between age groups (p<0.05). Significant correlations between time in the circle and clinical balance tests were also found (p<0.01). CONCLUSION: A posturography with VFS was considered to have clinical usefulness in sensitive evaluation of age-related change of balance control in healthy elderly people.
Aged*
;
Feedback, Sensory
;
Humans
;
Middle Aged
;
Postural Balance
;
Posture
2.Effect of Characteristics of Joint Motion of Lower Extremity according to Aging on Balance in Elderly.
Young Keun WOO ; Ji Hye HWANG ; Juha AN ; Heedong PARK ; Yun Hee KIM ; Peter KW LEE ; Nam Gyun KIM
Journal of the Korean Academy of Rehabilitation Medicine 2005;29(1):109-118
OBJECTIVE: To investigate the effect and the correlation of characteristics of joint motion of lower extremity according to aging on balance in elderly. METHOD: There were thirty nine healthy elderly subjects aged 60 and older. The subjects were divided into 3 groups by their age. Each group was measured with joint motion of bilateral lower extremities by goniometer. The subjects were evaluated with clinical balance tests [(Berg balance scale (BBS), Functional reach test (FRT), Tinetti's performance oriented mobility assessment (POMA), and one leg standing (OLS)]. RESULTS: The flexibilities of lower extremities were decreased according to the increase in age. The balance ability was also decreased according to the increase in age by tested clinical balance scores. The flexibility of the ankle joints showed the strongest correlation with clinical balance scores (BBS, FRT, POMA and OLS) according to the increase in age, and the flexibility of hip joints also correlated with clinical balance scores (POMA and OLS). CONCLUSION: Among clinically validated balance tests, the decline of balance performance related with aging. Correlation exists between ankle ROM and balance in healthy elderly people. Additional research is needed to add the ankle ROM to reflect the excise for balance tests and balance ability.
Aged*
;
Aging*
;
Ankle
;
Ankle Joint
;
Hip Joint
;
Humans
;
Joints*
;
Leg
;
Lower Extremity*
;
Pliability
;
Range of Motion, Articular
3.Effects of Inflammatory Disease on Clinical Progression and Treatment of Ischiogluteal Bursitis: A Retrospective Observational Study
Roh YH ; Yoo SJ ; Choi YH ; Yang HC ; Nam KW
Malaysian Orthopaedic Journal 2020;14(No.3):32-41
Introduction: The symptoms of Ischiogluteal Bursitis (IGB)
are often nonspecific and atypical, and its diagnosis is more
challenging. Moreover, it is difficult to predict cases of
chronic progression or poor treatment response. Therefore,
the aim of this study was to investigate the clinical course of
IGB patients and identify factors that are predictive of failure
of conservative treatment.
Materials and Methods: Our study consisted of IGB
patients diagnosed between 2010 March and 2016 December
who had been followed-up for at least one year. Structured
questionnaires and medical records were reviewed to analyse
demographic characteristics, lifestyle patterns, blood tests,
and imaging studies. We categorized the cases into two
groups based on the response to conservative treatment and
the need for surgical intervention.
Results: The most common initial chief symptoms were
buttock pains in 24 patients (37.5%). Physical examinations
showed the tenderness of ischial tuberosity area in 59
(92.2%) patients, but no specific findings were confirmed in
5 patients (7.8%). 51 patients (79.7%) responded well to the
conservative management, 11 patients (17.2%) needed
injection, and 2 patients (3.1%) had surgical treatment
performed due to continuous recurrence. There was no
difference in demographic and blood lab data between the
two groups. However, the incidence of inflammatory
diseases (response group: 10.3% vs non-response group:
66.7%, p=0.004) was significantly different between the two
groups.
Conclusion: The diagnosis of IGB can be missed due to
variations in clinical symptoms, and cautions should be
exercised in patients with inflammatory diseases as
conservative treatment is less effective in them, leading to
chronic progression of IGB.
4.Radiographic Characteristics of the Femoral Nutrient Artery Canals in Total Hip Arthroplasty using Cementless Femoral Stem
Roh YH ; Yoo SJ ; Choi TH ; Nam KW
Malaysian Orthopaedic Journal 2023;17(No.1):124-132
Introduction: Accurate diagnosis of undisplaced
periprosthetic femoral fracture (PFF) after hip arthroplasty is
crucial, as overlooked PFF may affect its treatment and
prognosis. The undisplaced PFF is often difficult to
distinguish from radiolucent lines of nutrient artery canal
(NAC) of the femur present on post-operative radiographs.
We aimed to identify the radiographic features of NAC to
distinguish them from PFFs.
Materials and methods: In this retrospective radiological
study, a total of 242 cases in 215 patients with hip
arthroplasty were analysed using pre-operative and postoperative anteroposterior (AP) and translateral (TL)
radiographs. Interobserver agreement of the measurements
was assessed by two independent experienced orthopaedic
surgeons. The kappa value ranged from 0.83 to 0.87,
indicating strong agreement according to the Landis and
Koch criteria.
Results: The NACs were found pre-operatively in 94
(39.8%) cases on AP views and in 122 cases (50.4%) on TL
views. The radiolucent lines were observed post-operatively
in 42 (17.4%) on AP views and 122 (50.4%) on the TL
views. three cases (1.2%) had a fracture around the stem that
were detected on radiographs. One case with PFF presented
simultaneously with NAC on the immediate post-operative
radiographs. All patients were treated by conservative
measures, and the radiolucent lines did not appear on followup radiographs.
Conclusion: It is not easy to differentiate undisplaced PFFs
that can occur after hip arthroplasty operation from NACs.
However, accurate diagnosis is possible through careful
observation and comparison of pre-operative and postoperative radiologic images