Use of Oversized Highly Porous Cups in Acetabular Revision
| Autor: | Amar S. Ranawat, Rajshekhar K Thippanna, Chitranjan S. Ranawat, Anil O Thomas, Morteza Meftah |
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| Rok vydání: | 2016 |
| Předmět: |
Male
Reoperation medicine.medical_specialty Limp Arthroplasty Replacement Hip medicine.medical_treatment Bone Screws Prosthesis Design Osseointegration 03 medical and health sciences 0302 clinical medicine medicine Humans Orthopedics and Sports Medicine Prospective Studies 030212 general & internal medicine Aged Aged 80 and over 030222 orthopedics business.industry Acetabulum Initial stability Middle Aged medicine.disease Arthroplasty Ischium Surgery medicine.anatomical_structure Anterior inferior iliac spine Female Heterotopic ossification Hip Prosthesis medicine.symptom business Follow-Up Studies |
| Zdroj: | Orthopedics. 39 |
| ISSN: | 1938-2367 0147-7447 |
| Popis: | This study assessed the efficacy of highly porous cups in revision total hip arthroplasty for Paprosky types II and III acetabular bone loss. The authors identified 33 acetabular revisions in 29 patients from a prospective database (66% type III, 7 with pelvic dissociation). Initial stability was achieved with interference fit between the anterior inferior iliac spine, pubis, and ischium with cups that were 2 to 4 mm larger than the reamed acetabulum and augmented with multiple screw fixations without allograft or wedges. At mean follow-up of 6 years (range, 2.7–7.7 years) after revision surgery, no dislocation, infection, or reoperation was noted. Mean satisfaction score was 6±3.2. Mean anteversion and abduction angles were 43°±4.6° and 21.5°±4.4°, respectively. Complications included limp in 13% of patients, wound issues in 10%, and heterotopic ossification in 17%. Osteointegration was seen in all cups, without any migration. Mean overall osteointegration, based on the average percentage of the 3 zones in both views, was 55%±21% (range, 25%–95%). The most osteointegration was seen in zone I (superior) and zone VI (posterior), and the least osseointegration was seen in zone II (medial) and zone IV (anterior). This method can provide reproducible results in acetabular revision arthroplasty. [ Orthopedics. 2016; 39(2):e301–e306.] |
| Databáze: | OpenAIRE |
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