Comparative Analysis between Short Stem and Conventional Femoral Stem in Patients with Osteonecrosis of Femoral Head: Metha Stem and Excia Stem

Autor:	Ki Woong Kim, Si Young Heo, Hyeon Jun Kim, Young Hun Jung, Sung Soo Kim
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Adult Male musculoskeletal diseases medicine.medical_specialty Arthroplasty Replacement Hip Femoral stem Prosthesis Design Conventional femoral stem 03 medical and health sciences Femoral head 0302 clinical medicine lcsh:Orthopedic surgery Femur Head Necrosis Humans Medicine Orthopedics and Sports Medicine In patient Prospective Studies Aged 030222 orthopedics Clinical Article Short stem biology business.industry Osteonecrosis Middle Aged Stress shielding biology.organism_classification Surgery Valgus lcsh:RD701-811 medicine.anatomical_structure Harris Hip Score Radiological weapon Clinical Articles Female Total hip arthroplasty Hip Prosthesis business 030217 neurology & neurosurgery
Zdroj:	Orthopaedic Surgery, Vol 12, Iss 3, Pp 819-826 (2020) Orthopaedic Surgery
ISSN:	1757-7853 1757-7861
Popis:	Objective To compare the intraoperative, radiological, and clinical short-term outcomes of cementless total hip arthroplasties (THA) using a short stem (SS) and a conventional femoral stem (CS) in a randomized prospective control study. Methods From June 2011 to October 2017, patients who underwent cementless THA for idiopathic osteonecrosis of the femoral head were recruited. Patients had a minimum 2 years of follow-up after the operation. The patients were divided into two groups: those who underwent THA using an SS and those who underwent THA using a CS. SS were used in 34 patients (41 hips) and CS were used in 41 patients (45 hips). In both groups, the same cup was used in all cases, and the mean follow-up periods were 63 (26-101) months in the SS and 64 (26-101) months in the CS groups. Intraoperative, clinical, and radiological evaluations were performed for the two groups. Results There was no difference in the demographics of the two groups. There was one patient with a proximal femoral crack in the SS group and one with a distal femoral crack in the CS group. Clinically, the mean Harris hip score was improved in both groups at 2-year follow-up. Radiographically endosteal osseointegrations were found in 40 of 41 cases in the SS group and in 44 of 45 cases in the CS group. There was one case of dislocation in each group. In the SS group, the acetabular cup was changed and repositioned 7 months after the initial operation. Stem loosening, infection, ceramic breakage, and varus/valgus change were not observed. There was a statistically significant lower stress shielding effect in the SS group. There were no differences in vertical/parallel offset and leg length discrepancy. Conclusion The intraoperative, radiological, and clinical evaluations in both groups showed good outcomes and there was no statistically significant difference between the two groups.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd940ddc428484a30db4ba12dff13a00 https://doaj.org/article/0a983987521b4089b571423f83f48233 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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