scholarly journals Length-dependent changes of lower limb muscle morphology in Chronic Inflammatory Demyelinating Polyneuropathy assessed with magnetic resonance imaging

2021 ◽  
Author(s):  
Jacob Fanous ◽  
Alexander M. Zero ◽  
Kevin J. Gilmore ◽  
Timothy J. Doherty ◽  
Charles Rice
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Chronic Inflammatory Demyelinating Polyneuropathy ◽  
Demyelinating Polyneuropathy ◽  
Triceps Surae ◽  
Resonance Imaging ◽  
Muscle Morphology ◽  
Hamstring Muscles ◽  
Inflammatory Demyelinating Polyneuropathy ◽  
Contractile Tissue

The objective of the present study was to assess muscle quantity of the thigh and leg in patients with chronic inflammatory demyelinating polyneuropathy (CIDP) compared to age and sex matched controls in exploring length-dependent changes of innervated muscles. In five people with CIDP and seven controls, magnetic resonance imaging was used to assess muscle morphology of the four parts of the quadriceps and medial hamstring muscles. Findings were compared to the triceps surae from a subset of participants. The CIDP group had less contractile tissue in the quadriceps (11.5%, P<0.05), hamstrings (15.6%, P<0.05) and triceps surae (35.9%, P<0.05) compared to controls. Additionally, CIDP had less contractile tissue (18.7%) in the triceps surae compared to the hamstrings (P<0.05). Muscle quantity in the quadriceps and hamstrings in CIDP was less than controls, but differences were greater for the distal triceps surae. These findings support a length-dependent affect of CIDP on limb musculature composition.

scholarly journals Central Tendon Injuries of Hamstring Muscles: Case Series of Operative Treatment

2018 ◽  
Vol 6 (2) ◽  
pp. 232596711875599 ◽  
Author(s):  
Lasse Lempainen ◽  
Jussi Kosola ◽  
Ricard Pruna ◽  
Jordi Puigdellivol ◽  
Janne Sarimo ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Surgical Treatment ◽  
Magnetic Resonance ◽  
Case Series ◽  
Hamstring Tendon ◽  
Tendon Injury ◽  
Tendon Injuries ◽  
Return To Play ◽  
Resonance Imaging ◽  
Hamstring Muscles

Background: As compared with injuries involving muscle only, those involving the central hamstring tendon have a worse prognosis. Limited information is available regarding the surgical treatment of central tendon injuries of the hamstrings. Purpose: To describe the operative treatment and outcomes of central tendon injuries of the hamstrings among athletes. Study Design: Case series; Level of evidence, 4. Methods: Eight athletes (6 top level, 2 recreational) with central hamstring tendon injuries underwent magnetic resonance imaging and surgical treatment. The indication for surgery was recurrent (n = 6) or acute (n = 2) central hamstring tendon injury. All patients followed the same postoperative rehabilitation protocol, and return to play was monitored. Results: Magnetic resonance imaging found a central tendon injury in all 3 hamstring muscles (long head of the biceps femoris, semimembranosus, and semitendinosus) with disrupted tendon ends. In acute and recurrent central tendon injuries, full return to play was achieved at 2.5 to 4 months. There were no adverse events during follow-up. Conclusion: Central tendon injuries of the hamstrings can be successfully repaired surgically after acute and recurrent ruptures.

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