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Purpose Of The Study: The study aimed to compare the postoperative outcomes of patients with total hip arthroplasty performed through Watson-Jones anterolateral approach and Röttinger minimally invasive anterolateral approach (MIS-AL). The hypothesis was that the MIS-AL approach enables faster recovery and better clinical outcomes in terms of abductor muscle strength and Harris Hip Score (HHS).
Material And Methods: The prospective comparative study included 136 patients who underwent surgery between 2018 and 2021. In 88 patients the Watson-Jones procedure was performed and in 48 patients Röttinger minimally invasive procedure was opted for. The Harris Hip Score (HHS) was used to evaluate the outcomes at three time points (before surgery, at 3 and 6 months after surgery) and the abductor muscle strength was measured using the dynamometer at four time points (before surgery, at 17 days, 3 and 6 months after surgery). The statistical analyses were conducted using the independent samples t-test at the level of significance p < 0.05.
Results: In the MIS-AL group, the HHS after 3 months was 86.32 ± 4.8 points, which was a higher score than that achieved in the Watson-Jones group (78.76 ± 5.6; p = 0.0015). After 6 months the difference remained in favour of MIS-AL (94.68 ± 4.7 vs. 90.28 ± 5.4; p = 0.0078). The maximum abductor muscle strength after 6 months improved from 125.52 ± 14.8 N to 170.91 ± 16.2 N in the Watson-Jones group and from 142.78 ± 15.3 N to168.11 ± 15.8 N in the MIS-AL group, with no statistically significant difference between the two groups (p > 0.05).
Discussion: The results show that the differences in abductor muscle strength between the MIS-AL approach and the Watson-Jones anterolateral approach were statistically insignificant. However, better results of the Harris Hip Score in patients in whom the MIS-AL approach was used are supported by the trend of faster functional recovery and higher satisfaction rate of patients undergoing less invasive surgical procedures.
Conclusions: The Röttinger minimally invasive anterolateral approach provides faster improvement of the HHS during the first six months after surgery. The differences in abductor muscle strength between the groups were statistically insignificant.
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http://dx.doi.org/10.55095/achot2025/009 | DOI Listing |
PLoS One
September 2025
Sports and Exercise Medicine, Queen Mary University London, London, United Kingdom.
Background: Single-leg stance requires pelvic stability, largely supported by the hip abductors. Differences in hip abductor activation between sexes and individuals with or without musculoskeletal conditions may relate to abductor weakness. However, the relationship between hip abduction strength and muscle activation during stance, and whether this is moderated by sex, remains unclear.
View Article and Find Full Text PDFAnesth Analg
September 2025
From the Department of Neurosurgery, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
Background: Transcranial electrical stimulation muscle-recorded motor evoked potentials (Tc-mMEPs) are used to monitor the spinal cord motor tracts during spinal surgery. There is considerable intra- and interindividual variability in the signals recorded, causing a high incidence of false positive warnings. Inadequate blood pressure is commonly blamed for false positive warnings and is usually managed with fluid and vasopressor therapy.
View Article and Find Full Text PDFJ Neuroeng Rehabil
September 2025
Department of Health and Human Performance, University of Houston, Houston, TX, 77204, USA.
Background: Many individuals with hemiparesis after stroke are reluctant to transfer their body weight toward the affected side and rely more heavily on the unaffected leg while walking. Although visual feedback (VF) has been utilized to improve their weight transfer during walking, the effects of transcutaneous spinal stimulation (TSS) paired with VF during locomotor training in people post-stroke remain largely unexplored. The purpose of this study, therefore, was to determine whether phasic TSS paired with VF regarding weight shifting to the affected leg during treadmill walking would enhance weight transfer toward the affected side.
View Article and Find Full Text PDFExp Brain Res
September 2025
Neuromotor Adaptation Laboratory, Faculty of Science, Medicine, and Health, School of Medical, Indigenous, and Health Sciences, University of Wollongong, Northfields Avenue, Wollongong, 2522, NSW, Australia.
Hand control for dexterous and strength-based tasks involves several levels of the neuromuscular system which interact to produce force. We investigated hand force, motor unit (MU) control, and intermuscular coherence in specialist-trained groups to identify how training may affect neuromuscular force control and motor neuron activity. Equal groups of ten strength-trained (rock climbers) and dexterity-trained (musicians) individuals participated.
View Article and Find Full Text PDFTop Stroke Rehabil
September 2025
Department of Physical Therapy, Graduate School, College of Health Sciences, Kyungnam University, Changwon, Republic of Korea.
Background: Stroke patients often experience impaired balance and gait due to hip abductor weakness. Although Reformer exercises are recognized to enhance muscular strength and functional outcomes, their effects on specific muscle groups in stroke rehabilitation remain insufficiently investigated.
Objectives: This study examined the effects of Reformer-based hip abductor strengthening exercises on muscle strength, balance, spatiotemporal gait parameters, and fall efficacy in patients with chronic stroke.