scholarly journals Patellofemoral Pain After Arthroscopy: Muscle Atrophy Is Not Everything

2021 ◽  
Vol 9 (6) ◽  
pp. 232596712110130
Author(s):  
Jorge Amestoy ◽  
Daniel Pérez-Prieto ◽  
Raúl Torres-Claramunt ◽  
Juan Francisco Sánchez-Soler ◽  
Joan Leal-Blanquet ◽  
...  
Keyword(s):  
Cohort Study ◽  
Muscle Strength ◽  
Muscle Thickness ◽  
Functional Results ◽  
Quadriceps Femoris ◽  
Partial Meniscectomy ◽  
Control Group ◽  
Arthroscopic Partial Meniscectomy ◽  
Quadriceps Femoris Muscle ◽  
Femoris Muscle

Background: It remains unclear as to why patellofemoral pain (PFP) appears in some patients after knee arthroscopy and what influence the quadriceps muscle has on its onset. Purpose: To compare muscle thickness, neuromuscular contractility, and quadriceps femoris muscle strength between patients who develop PFP after arthroscopic partial meniscectomy and a control group and to compare functional outcomes between these entities. Study Design: Cohort study; Level of evidence, 3. Methods: A prospective longitudinal cohort study was carried out on patients scheduled for arthroscopic partial meniscectomy. Patients were excluded if they had preoperative PFP, previous knee surgery, or additional surgical procedures (eg, meniscal repair or microfracture). The following were performed preoperatively: magnetic resonance imaging to quantify muscle thickness, surface electromyography to analyze electrical contractility, and an isokinetic study to assess the strength of the quadriceps femoris muscle. Patients also completed a Lysholm functional questionnaire. Six weeks after the index procedure, patients were questioned about the presence of PFP, and the same tests were repeated. The PFP group included patients who developed anterior knee pain postoperatively, while the control group included those who did not develop pain. Results: Of 90 initial study patients, 20 were included in the PFP group (23.8%) and 64 in the control group (76.2%); 6 patients were lost to follow-up. Both study groups were comparable on all of the analyzed preoperative variables. Patients in the PFP group had worse results in terms of muscle thickness (9.67 vs 16.55 cm2), electrical contractility (1226.30 vs 1946.11 µV), and quadriceps strength (12.27 vs 20.02 kg; all P < .001). They also presented worse functional results on the Lysholm score (63.05 vs 74.45; P < .001). Conclusion: Patients who developed PFP after arthroscopic partial meniscectomy had more quadriceps femoris muscle atrophy as well as a greater decrease in electrical contractility and muscle strength at 6 weeks postsurgically as compared with a control group. The PFP group also had worse postoperative functional results.

scholarly journals Preoperative muscle thickness influences muscle activation after arthroscopic knee surgery

2021 ◽  
Author(s):  
Jorge Amestoy ◽  
Daniel Pérez-Prieto ◽  
Raúl Torres-Claramunt ◽  
Juan Francisco Sánchez-Soler ◽  
Albert Solano ◽  
...  
Keyword(s):  
Knee Pain ◽  
Anterior Knee Pain ◽  
Muscle Thickness ◽  
Patellofemoral Pain ◽  
Quadriceps Femoris ◽  
Arthroscopic Partial Meniscectomy ◽  
Neuromuscular Activation ◽  
Quadriceps Femoris Muscle ◽  
Anterior Knee ◽  
Femoris Muscle

Abstract Purpose The aim of this study was to compare the correlation between preoperative quadriceps femoris muscle thickness and postoperative neuromuscular activation and quadriceps femoris strength in patients with and without patellofemoral pain after arthroscopic partial meniscectomy. Methods A series of 120 patients were prospectively analysed in a longitudinal cohort study of patients scheduled for arthroscopic partial meniscectomy. The patellofemoral pain group included patients who developed anterior knee pain after surgery while the control group included those who had not done so. Patients with preoperative patellofemoral pain, previous knee surgeries as well as those on whom additional surgical procedures had been performed were excluded. Of the 120 initially included in the study, 90 patients were analysed after the exclusions. Results There is a direct correlation between preoperative quadriceps femoris muscle thickness and the neuromuscular activity values and the strength of the muscle at 6 weeks after surgery. These results were seen exclusively in the group of patients who do not develop patellofemoral pain (0.543, p = 0.008). The group of patients who developed anterior knee pain in the postoperative period did not show this correlation (n.s.). Conclusion In patients without patellofemoral pain after meniscectomy, the greater the preoperative thickness of the quadriceps femoris, the more postoperative neuromuscular activation and strength they had. This correlation did not occur in those patients who develop patellofemoral pain after meniscal surgery. Level of evidence II.

scholarly journals Efek Prehabilitation Exercise dengan Resistance Band terhadap Kekuatan Otot Kuadrisep Femoris pada Pasien Total Knee Replacement

2020 ◽  
Vol 7 (1) ◽  
pp. 46-52
Author(s):  
Ervi Ervi ◽  
Tanti Ajoe Kesoema ◽  
Robin Novriansyah
Keyword(s):  
Muscle Strength ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Quadriceps Femoris ◽  
Control Group ◽  
Quadriceps Femoris Muscle ◽  
Resistance Bands ◽  
Total Knee ◽  
Quadriceps Femoris Muscle Strength ◽  
Femoris Muscle

Pendahuluan: Prehabilitation exercise dengan resistance band merupakan latihan   penguatan otot yang aman, mudah dilakukan dan dapat dijadikan sebagai home programme pada pasien osteoartritis (OA) yang akan menjalani total knee replacement (TKR). Namun demikian, latihan ini belum lazim dilakukan di Indonesia. Penelitian ini bertujuan untuk mengetahui pengaruh intervensi prehabilitation exercise dengan resistance band terhadap kekuatan otot kuadrisep femoris pada pasien yang menjalani TKR. Metode: Penelitian randomized controlled trial dengan pre and post test. Sebanyak 16 subjek yang memenuhi kriteria dibagi secara acak ke dalam kelompok perlakuan (n=8) dan kontrol (n=8). Kelompok perlakuan mendapatkan prehabilitation exercise dengan resistance band 3x seminggu selama 4 minggu sebelum TKR, sedangkan kelompok kontrol mendapatkan terapi konvensional berupa ergocycle dan TENS (Transcutaneus Electrical Nerve Stimulation) 2x seminggu selama 4 minggu sebelum TKR. Pengukuran kekuatan otot kuadrisep femoris dilakukan 3x yaitu pada 4 minggu dan 1 minggu sebelum TKR, serta 8 minggu setelah TKR menggunakan push-pull dinamometer. Hasil: Kelompok perlakuan menunjukkan peningkatan kekuatan otot kuadrisep femoris yang signifikan pada 4 minggu ke 1 minggu sebelum TKR sebesar 3,00+1,28 (p=0,001). Peningkatan kekuatan otot pada kelompok intervensi juga terlihat pada 4 minggu sebelum ke 8 minggu setelah TKR sebesar 2,38+1,22 (p<0,001). Sebaliknya, kelompok kontrol mengalami penurunan kekuatan otot sebesar -0,88+0,79 (p=0,001) dan -0,88+1,28 (p=0,001) masing-masing pada periode 4 minggu ke 1 minggu sebelum TKR dan 4 minggu sebelum ke 8 minggu setelah TKR. Kesimpulan: Terdapat pengaruh prehabilitaion exercise dengan resistance bands terhadap peningkatan kekuatan otot kuadrisep femoris pada subjek yang menjalani operasai TKR. Prehabilitation exercise dapat digunakan sebagai alternatif latihan yang aman, mudah dilakukan serta dapat dijadikan sebagai home programme pada pasien yang akan menjalani operasi TKR. Kata kunci: Prehabilitation exercise, kekuatan kuadrisep femoris, total knee replacement.   Background: Prehabilitation exercises using resistance band is a safe and easy muscle strengthening exercise and can be used as a home programme in OA patients undergoing TKR. This exercise, however, is not commonly used in Indonesia. The this study aims to investigate the effect of prehabilitation exercise using resistance band on quadriceps femoris muscle strength in patients undergoing TKR. Methods: This study is a randomized controlled trial with pre and post-test. A total of 16 subjects who meet criteria were randomly allocated into intervention (n = 8) and control (n = 8) groups. The first group received prehabilitation exercise with resistance bands 3 times a week for 4 weeks before TKR, while the control group received conventional therapies involving ergocycle and TENS (Transcutaneous Electrical Nerve Stimulation) 2 times a week for 4 weeks before TKR. Quadriceps femoris muscle strength was measured three times at 4 weeks and 1 week before TKR, and 8 weeks after TKR using a push-pull dynamometer. Results: The intervention group shows a significant increase in quadriceps femoris muscle strength at 4 weeks to 1 week before TKR (3.00+1.28, p = 0.001). The increased quadriceps femoris muscle strength in the intervention group was also seen at 4 weeks before to 8 weeks after TKR (2,38+1,22, p<0,001). Conversely, the control group experienced a decreased quadriceps femoris muscle strength of -0.88+0.79 (p=0.001) and -0.88+1.28 (p=0.001) respectively in the period of 4 weeks to 1 week before TKR and 4 weeks before to 8 weeks after TKR. Conclusion: There is an effect of prehabilitation exercise with resistance bands on increased quadriceps femoris muscle strength in subjects undergoing TKR. Prehabilitation exercise is safe, easy and can be used as an alternative for home programme. Keywords: Prehabilitation exercise, quadriceps femoris muscle strength, total knee replacement.

scholarly journals Estimation of quadriceps femoris muscle dysfunction in the early period after surgery of the knee joint using shear-wave elastography

2018 ◽  
Vol 4 (1) ◽  
pp. e000381 ◽  
Author(s):  
Makoto Kawai ◽  
Keigo Taniguchi ◽  
Tomoyuki Suzuki ◽  
Masaki Katayose
Keyword(s):  
Shear Modulus ◽  
Knee Joint ◽  
Patient Group ◽  
Quadriceps Femoris ◽  
Control Group ◽  
Muscle Dysfunction ◽  
Shear Moduli ◽  
Quadriceps Femoris Muscle ◽  
Contraction Ratio ◽  
Femoris Muscle

ObjectivesOrthopaedic surgery of the knee joint results in functional deterioration of the quadriceps femoris muscle. However, little is known about quadriceps femoris muscle dysfunction in the early postsurgical period. Therefore, we examined the stiffness of the quadriceps femoris muscle in the early postsurgical period.MethodsSeven patients and seven healthy controls performed quadriceps contraction exercises. In resting and contraction conditions, the shear modulus, muscle thickness and pennation angle were measured for the vastus medialis (VM), vastus lateralis (VL) and the rectus femoris (RF) using ultrasound elastography.ResultsThe shear moduli of the VM, VL and RF in the control group did not significantly interact, while the shear moduli in the patient group did show a significant interaction. In the resting condition, there was no difference between the unaffected and affected sides in the patient group, but the shear moduli of the VM and VL in the contraction condition was significantly lower on the affected side than the unaffected side.The contraction ratios between muscles by limbs did not significantly interact. However, there were main effects due to muscle and limb factors. The VM and VL had a significantly higher contraction ratio than the RF, and the control and unaffected limbs had a higher contraction ratio than the affected limb.ConclusionThe results demonstrated a decrease in muscle stiffness during contraction in patients with quadriceps femoris dysfunction. Measurement of the shear modulus has potential as a new evaluation index and with high sensitivity to decreases in muscle contraction.

Effects of magnetic stimulation compared to electrical stimulation on muscle contraction in quadriceps femoris muscle of healthy subjects: A pilot study

2021 ◽  
Vol 2 (5) ◽  
Author(s):  
Ryosuke Nakanishi ◽  
◽  
Minoru Tanaka ◽  
Noriaki Maeshige ◽  
Hidemi Fujino ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Muscle Contraction ◽  
Healthy Subjects ◽  
Magnetic Stimulation ◽  
Muscle Thickness ◽  
Rectus Femoris ◽  
Superficial Layer ◽  
Quadriceps Femoris ◽  
Quadriceps Femoris Muscle ◽  
Femoris Muscle

Background/Aims: This study investigated whether pulsed magnetic stimulation contracts superficial and/or deep muscles compared with those induced by electrical stimulations, i.e., low- and kilohertzfrequency currents. Methods: Eight healthy subjects were recruited and measured the quadriceps femoris muscle thickness using ultrasound imaging, and Visual Analog Scale (VAS) for stimulation-induced pain during the same stimulation intensity. Results: Pulsed magnetic stimulation increased the thickness of rectus femoris muscle similar to other electrical stimulations, but not the vastus intermedius muscle. Meanwhile, the pain score of VAS caused by pulsed magnetic stimulation was lower than that by those electrical stimulations. Conclusions: These results suggest that pulsed magnetic stimulation is effective for the contraction of superficial layer muscles without stimulation-induced pain but not for contraction of deep layer muscles. Keywords: pulsed magnetic stimulation; electrical stimulation; stimulation-induced pain; muscle contraction.

scholarly journals Comparison of Hamstrings and Quadriceps Femoris Muscle Thickness Increment between Agonist-Antagonist Paired Set and Traditional Set Resistance Training in Untrained Healthy Subjects

2021 ◽  
Vol 3 (2) ◽  
pp. 60
Author(s):  
Gutama Arya Pringga ◽  
R. A. Meisy Andriana ◽  
Indrayuni Lukitra Wardhani ◽  
Lydia Arfianti
Keyword(s):  
Resistance Training ◽  
Muscle Mass ◽  
Muscle Thickness ◽  
Quadriceps Femoris ◽  
Quadriceps Femoris Muscle ◽  
Leg Extension ◽  
Increase Muscle Mass ◽  
Group 3 ◽  
Femoris Muscle ◽  
Group 1

Background: Resistance training is an effective way to increase muscle mass. Resistance training with agonist-antagonist paired set method can be an alternative to increase muscle mass within a relatively short training time.Aim: To compare the increase in hamstrings and quadriceps femoris muscle thickness between agonist-antagonist paired set (APS) and traditional set (TS) resistance training in untrained healthy subjects.Material and Methods: This study was an experimental study on 16 untrained healthy men which were randomly assigned to the APS and the TS group. Each group got leg curl and leg extension exercises with equal training volume for 6 weeks. For the APS group, 1 set of leg curls was followed by 1 set of leg extensions, repeated for 3 sets. For the TS group, 3 sets of leg curls were followed by 3 sets of leg extensions. Muscle thickness was compared from pre- to post-training and between the intervention groups using B-mode ultrasound.Results: Muscle thickness of the hamstrings and quadriceps femoris increased significantly from pre- to post-training in both groups (p<0.05). The increase in muscle thickness between the two groups was not significantly different (p> 0.05).Conclusion: Resistance training with the APS method did not give a higher increment of hamstrings and quadriceps femoris muscle thickness compared to the TS method in healthy untrained subjects.

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