Evaluation of the patellar tendon in transtibial amputees: A preliminary sonographic study

Author(s):  
Levent Ozcakar ◽  
Erkam Komurcu ◽  
Ismail Safaz ◽  
Ahmet Salim Goktepe ◽  
Kamil Yazicioğlu
Author(s):  
J C H Goh ◽  
P V S Lee ◽  
S Y Chong

The purpose of this study was to evaluate the pressure distribution at the stump/socket interface in amputees wearing the patellar-tendon-bearing socket. A specially built strain gauged type pressure transducer was used for measuring this pressure distribution in four unilateral transtibial amputees. Pressure and gait parameters were measured simultaneously while they were standing and walking. Pressure profiles were compiled at 10, 25 and 50 per cent of gait cycle and compared with the pressure profiles predicted by Radcliffe in 1961. The subject's anterior-posterior pressure profiles were different from each other. However, at toe-off, each subject exhibited an increase in pressure at the patellar tendon. Their medial-lateral pressure profiles were similar: exhibiting high pressure at the medial proximal and lateral distal regions except for one subject who exhibited high pressure at the lateral proximal region instead. The subjects' pressure profiles did not resemble Radcliffe's anticipated pressure profiles. This was because ground reaction force was not the only factor affecting the resulting pressure profiles.


2009 ◽  
Vol 33 (4) ◽  
pp. 324-328 ◽  
Author(s):  
Levent Özçakar ◽  
Erkam Kömürcü ◽  
İsmaİl Safaz ◽  
Ahmet Salİm Göktepe ◽  
Kamİl YazicioĞLU

This study aimed to provide sonographic imaging of the patellar tendon (PT) – one of the main weight bearing structures for prosthetic use – in transtibial amputees. Thirteen males, who had been under follow-up for unilateral traumatic transtibial amputations, were enrolled. After physical examination of the limb, pain was evaluated by visual analogue scale and Leeds Assessment of Neuropathic Symptoms and Signs. Sonographic evaluations were performed by using a linear array probe (Aloka UST-5524-7.5 MHz) on both sides. Measurements pertaining to the contralateral limbs were taken as controls. In three subjects (23.1%), two with a silicone liner and one with a pelite liner, cortical irregularities were detected at the tibial insertion of the PT on the amputated sides. PTs were found to be thicker on the amputated sides when compared with those of the contralateral sides ( p = 0.03), and this increase in thickness correlated with disease duration ( r = 0.67, p = 0.01). Overall, our preliminary results imply that after transtibial amputation, PTs of the amputated sides tend to become thicker by time. These findings need to be complemented with future studies. In this regard, sonography seems to be promising for imaging the soft tissue problems of the stump.


2017 ◽  
Vol 6 (1) ◽  
pp. 1398
Author(s):  
R. Raja ◽  
H. Ravindranath Rai ◽  
J. N. Sridharamurthy ◽  
B. Madhouraj ◽  
R. Balaji ◽  
...  

<p><strong>Background</strong>: Proper prescription of prosthetic device and potential rehabilitation increases the quality of life for subjects with amputations.</p><p><strong>Objective</strong>: To compare the effect of vertical ground reaction force (Fz) on unilateral Transtibial amputees those who are using conventional and modular patellar tendon bearing (PTB) prosthesis with stump exercises.</p><p><strong>Material and Methodology</strong>: A sample of 120 persons with below knee amputees who were trained to wear prosthesis were studied with an comparative follow up study design with purposive sampling technique. The 120 adult amputee patients were divided in to two groups having 60 samples in each group, group A patients were given conventional patellar tendon bearing (PTB) prosthesis with intensive stump exercises and group B patients were given modular PTB prosthesis with intensive stump exercises respectively. Data analyzed statistically.</p><p><strong>Results</strong>: The unilateral transtibial amputees who trained with modular prosthesis along with stump exercises group patients Fz-force in newton were increased as compared to the unilateral transtibial amputees who were trained with conventional PTB prosthesis along with stump exercises. There was no significant difference seen in both the groups while giving stump exercises alone.</p><p><strong>Conclusion</strong>: The unilateral transtibial amputees who were trained with modular PTB prosthesis along with stump exercises group patient's Fz-force in newton (VGRF) has increased drastically compared with conventional PTB prosthesis.</p>


Author(s):  
Sean P. McGowan ◽  
Benjamin C. Taylor ◽  
Devon M. Myers ◽  
Braden J. Passias

Author(s):  
karina Alves Fernandes ◽  
CLEUDMAR ARAÚJO ◽  
Fernando Lourenço de Souza

2019 ◽  
Vol 14 (12) ◽  
pp. 1509-1512
Author(s):  
Syed Mohammed Ali Haydar ◽  
Jonathan Miles ◽  
Rikin Hargunani

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