Publications by authors named "Jonathan Lettner"

Purpose: Unicondylar arthroplasty was performed using robotic medial unicompartmental knee arthroplasty (R-mUKA) and gap-balancing instrumentation. Our hypothesis was that robotic unicondylar knee arthroplasty accurately restores component positioning and lower limb alignment when compared to preoperative planning with actual implantation throughout the range of knee motion due to proper knee balancing.

Methods: Data were collected prospectively and were analysed for patients undergoing RM-UKA.

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Article Synopsis
  • The study investigates the effectiveness of artificial intelligence (AI) in radiological assessments for femoral neck fractures through a systematic review and meta-analysis of existing research.
  • It analyzed data from 11 studies involving over 21,000 radiographs, finding that AI achieved an accuracy of 91% and good sensitivity of 87% in assessing these fractures.
  • The research followed established protocols to ensure quality, revealing moderate overall study quality and some publication bias, while highlighting the potential benefits of AI in radiology.
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Muscle properties are critical for performance and injury risk, with changes occurring due to physical exertion, aging, and neurological conditions. The MyotonPro device offers a non-invasive method to comprehensively assess muscle biomechanical properties. This systematic review evaluates the reliability of MyotonPro across various muscles for diagnostic purposes.

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Background: The investigation of soft tissue stiffness has garnered increasing interest due to its potential applications in detecting tissue conditions, monitoring therapy effects, and preventing sports injuries. This study utilized the MyotonPro as a reliable measurement device to assess muscle stiffness and muscle frequency in the vastus lateralis and medialis muscles of both the dominant and non-dominant legs.

Methods: Sixteen young, healthy subjects (seven males and nine females, age 25 ± 3.

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Background: The elements of previously designed questionnaires do not take into consideration the burdens encountered in an inpatient hospital setting. The purpose of this study is to validate elements of a non-compliance survey in an in-hospital setting and discuss aspects of compliance with telerehabilitative physiotherapy in the early postoperative period.

Methods: A literature search was conducted to identify elements that prevent patients from performing their prescribed physical therapy exercises.

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Background: Compliance with rehabilitative physiotherapeutic measures leads to an improvement in outcomes in patients suffering from a variety of musculoskeletal conditions. To date, a tool for assessing the parameters that lead to non-adherence to physical therapy does not exist in the German language. The objective of this paper is to cross-culturally adapt a non-compliance questionnaire to German.

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