| 1. |
- Anderson, Thomas, et al.
(författare)
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Tibiotalocalcaneal fusion using retrograde intramedullary nails as a salvage procedure for failed total ankle prostheses. Sixteen cases primarily operated on due to rheumaoid arthritis
- 2005
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Ingår i: Foot & Ankle Surgery. - : Elsevier BV. - 1268-7731. ; 11:3, s. 143-147
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Tidskriftsartikel (refereegranskat)abstract
- Between 1996 and 2002, 16 patients with rheumatoid arthritis and failed total ankle prosthesis underwent tibiotalocalcaneal fusion using retrograde intramedullary nails. The functional outcome was evaluated using the AOFAS scoring system and the patients were also asked about their satisfaction. Radiographs were obtained for all 16 cases minimum 1 year after surgery. Thirteen of the 16 ankles were considered radiographically healed, 11 at the first attempt and two after repeat arthrodesis. The median AOFAS pain and total scores were 40 and 58, respectively. Two deep infections resulted in a fused ankle after antibiotic treatment. In patients with rheumatoid arthritis and a failed total ankle prosthesis, tibiotalocalcaneal arthrodesis with a retrograde intramedullary nail resulted in primary healing in two-thirds of the cases. Only two patients with a fused ankle were dissatisfied with the final result. The procedure is recommended in selected cases as an alternative to external fixation.
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| 2. |
- von Schewelov, Thord, et al.
(författare)
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A clinical and radiostereometric study of the cemented PFC-sigma prosthesis: a 5-year study of 29 cases with a fixed bearing.
- 2009
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Ingår i: Journal of Knee Surgery. - 1538-8506. ; 22:3, s. 231-236
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Tidskriftsartikel (refereegranskat)abstract
- The press-fit condylar (PFC) cruciate-retaining total knee prosthesis is well documented in the literature. In 1997, a modification of the femoral component was introduced, and the prosthesis was renamed PFC-Sigma. The alteration may influence the migratory and rotational pattern of the tibial component and thus long-time survival rate. In this radiostereometric analysis, we found that the micromotion of the PFC-Sigma prosthesis differs slightly from the original PFC design, an advantage of the PFC-Sigma prosthesis. The median maximum total point motion at 5 years was 0.64 mm for the PFC-Sigma design and 0.79 mm for the previous version of PFC (P = .9). However, the PFC-Sigma rotated less around the transverse (x) axis than did the PFC (medians, 0.22 mm and 0.48 mm, respectively; P = .04). From the radiostereometric, radiographic, and clinical data, we conclude that the PFC-Sigma knee prosthesis can be used with confidence.
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| 3. |
- Carlsson, Åke
(författare)
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Einfach- und doppeltbeschichtete STAR-Sprunggelenkprothesen
- 2006
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Ingår i: Orthopade. - : Springer Science and Business Media LLC. - 1433-0431. ; 35:Apr 21, s. 527-532
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Tidskriftsartikel (refereegranskat)abstract
- An up to 12-year follow-up of 51 single-coated STAR revealed that 15 ankles had undergone fusion. The mean time from primary surgery to the first revision was median 51 months. In a series of 58 double-coated STAR ankles followed up to 5 years only one ankle had to be revised for component loosening. In this series the clinical survival rate was 98% and the radiographic survival rate 94% at 5 years. The radiographic survival rate, with component loosening as endpoint, was significantly better for the last 31 cases in the series of the single-coated prostheses. However, the loosening rate did not differ when these latter 31 cases were compared with the cases operated on with a double-coated prosthesis. One may conclude that improvement of the anchoring surfaces has had a limited influence on the radiographic survival of the STAR ankle. However, from the clinical survivorship figures it is obvious that the learning process continues as the difference in revision rate between the 31 last implanted single-coated and the later on implanted double-coated prostheses approached significance.
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| 4. |
- Cöster, Maria, et al.
(författare)
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Validity, reliability, and responsiveness of the Self-reported Foot and Ankle Score (SEFAS) in forefoot, hindfoot, and ankle disorders
- 2014
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Ingår i: Acta Orthopaedica. - London : Informa Healthcare. - 1745-3674 .- 1745-3682. ; 85:2, s. 187-194
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND AND PURPOSE: The self-reported foot and ankle score (SEFAS) is a questionnaire designed to evaluate disorders of the foot and ankle, but it is only validated for arthritis in the ankle. We validated SEFAS in patients with forefoot, midfoot, hindfoot, and ankle disorders.PATIENTS AND METHODS: 118 patients with forefoot disorders and 106 patients with hindfoot or ankle disorders completed the SEFAS, the foot and ankle outcome score (FAOS), SF-36, and EQ-5D before surgery. We evaluated construct validity for SEFAS versus FAOS, SF-36, and EQ-5D; floor and ceiling effects; test-retest reliability (ICC); internal consistency; and agreement. Responsiveness was evaluated by effect size (ES) and standardized response mean (SRM) 6 months after surgery. The analyses were done separately in patients with forefoot disorders and hindfoot/ankle disorders.RESULTS: Comparing SEFAS to the other scores, convergent validity (when correlating foot-specific questions) and divergent validity (when correlating foot-specific and general questions) were confirmed. SEFAS had no floor and ceiling effects. In patients with forefoot disorders, ICC was 0.92 (CI: 0.85-0.96), Cronbach's α was 0.84, ES was 1.29, and SRM was 1.27. In patients with hindfoot or ankle disorders, ICC was 0.93 (CI: 0.88-0.96), Cronbach's α was 0.86, ES was 1.05, and SRM was 0.99.INTERPRETATION: SEFAS has acceptable validity, reliability, and responsiveness in patients with various forefoot, hindfoot, and ankle disorders. SEFAS is therefore an appropriate patient- reported outcome measure (PROM) for these patients, even in national registries.
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| 5. |
- Henricson, Anders, et al.
(författare)
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Bilateral Arthrodesis of the Ankle Joint : Self-Reported Outcomes in 35 Patients From the Swedish Ankle Registry
- 2016
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Ingår i: The Journal of Foot & Ankle Surgery. - : Elsevier BV. - 1067-2516. ; 55:6, s. 1195-1198
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Tidskriftsartikel (refereegranskat)abstract
- Bilateral ankle arthrodesis is seldom performed, and results concerning the outcome and satisfaction can only sparsely be found in published studies. We analyzed the data from 35 patients who had undergone bilateral ankle arthrodesis in the Swedish Ankle Registry using patient-reported generic and region-specific outcome measures. Of 36 talocrural arthrodeses and 34 tibio-talar-calcaneal arthrodeses, 6 ankles (9%) had undergone repeat arthrodesis because of nonunion. After a mean follow-up period of 47 ± 5 (range 12 to 194) months, the mean scores were as follows: self-reported foot and ankle score, 33 ± 10 (range 4 to 48); the EuroQol Group's EQ-5D™ score, 0.67 ± 0.28 (range −0.11 to 1), the EuroQol Group's visual analog scale score, 70 ± 19 (range 20 to 95), 36-item Short Form Health Survey (SF-36) physical domain, 39 ± 11 (range 16 to 58); and SF-36 mental domain, 54 ± 14 (range 17 to 71). Patients with rheumatoid arthritis seemed to have similar self-reported foot and ankle scores but possibly lower EQ-5D™ and SF-36 scores. Those with talocrural arthrodeses scored higher than did those with tibio-talar-calcaneal arthrodeses on the EQ5D™ and SF-36 questionnaires (p = .03 and p = .04). In 64 of 70 ankles (91%), the patients were satisfied or very satisfied with the outcome. In conclusion, we consider bilateral ankle arthrodesis to be a reasonable treatment for symptomatic hindfoot arthritis, with high postoperative mid-term satisfaction and satisfactory scores on the patient-reported generic and region-specific outcome measures, when no other treatment option is available.
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| 6. |
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| 7. |
- Sundberg, Martin, et al.
(författare)
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Movement patterns of the C-stem femoral component: an RSA study of 33 primary total hip arthroplasties followed for two years.
- 2005
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Ingår i: Journal of Bone and Joint Surgery: British Volume. - 2044-5377. ; 87:10, s. 1352-1356
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Tidskriftsartikel (refereegranskat)abstract
- We used roentgen stereophotogrammetric analysis to follow 33 C-stem femoral components for two years after primary total hip arthroplasty. All components migrated distally and posteriorly within the cement mantle. The mean distal migration was 1.35 mm (SD 0.62) at two years and the mean posterior migration was 1.35 mm (SD 0.69) at two years. All the femoral components rotated into retroversion with a mean rotation at two years of 1.9° (SD 1.1). For all other directions, the prosthesis was stable up to two years. Compared with other tapered prostheses, the distal migration of the C-stem is the same, but posterior rotation and posterior migration are greater.
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