Improvements to a method for determining leg length following total hip arthroplasty
| Autor: | Michael Schmidt, Ronny Grunert, Stefan Schleifenbaum, Toni Wendler, Martin Heilemann, Torsten Prietzel, Robert Möbius |
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| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Male
medicine.medical_specialty total hip arthroplasty Side effect Arthroplasty Replacement Hip 0206 medical engineering Biomedical Engineering 02 engineering and technology leg length determination 01 natural sciences Patient satisfaction Humans Medicine Lead (electronics) Optical Measuring System business.industry 010401 analytical chemistry Leg length Reproducibility of Results General Medicine 020601 biomedical engineering Leg Length Inequality 0104 chemical sciences Surgery Patient Satisfaction intraoperative measurements Feasibility Studies business Software Total hip arthroplasty |
| Popis: | Discrepancy in leg length does frequently occur as a side effect of total hip arthroplasty and may lead to reduced patient satisfaction as well as injury in the sequalae. It is consequently important to reduce leg length discrepancy where-ever technically possible. This may be achieved by recording precise intraoperative measurements and using different sized implanted components. The aim of the given study was to improve the accuracy of a previously validated optic measurement system (OMS) to reduce leg length discrepancy. This pre-existing OMS was first trialled and based on these preliminary findings developed further. Using this improved system, measurements were taken in models and cadavers. Inter observer reliability of the improved OMS was assessed. The system is introduced in the given technical feasibility study. Its accuracy was greater in the model setup (swivel joint: 772.7 ± 1.5 mm; ball joint: 770.0 ± 3.7 mm; reference: 772 mm) compared to the trial using cadaveric tissues (588.8 ± 5.7 mm; reference: 586 mm). Results of two examiners were similar. The third one measured significantly shorter values (p=.011). The results of the measurements with the OMS indicate that a significant increase in accuracy (p = 2.076×10−6) has been achieved compared to the previously reported system, however, a further improvement to measurement accuracy is necessary for this to be applied clinically. |
| Databáze: | OpenAIRE |
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