129 knees suitable for a standard PCL retaining cemented total knee replacement were randomised into two groups, one in which PCL was retained in the normal way, the other group having the PCL fully resected. Both groups received a PCL retaining implant. The two groups were well matched with a predominance of females and a mean age of 67 years. There was no statistically significant difference in the HSS scores at an average of 57 months (range 56–60 months) in the two groups. Pain relief, deformity correction, range of motion, stability and strength were comparable in the two groups. A radiological assessment revealed femoral rollback in approximately 20% of cases with a slightly higher incidence in the PCL sacrificed group. There was no significant loosening detected in either of the categories at two years review. At five years one TKR in the PCL retained group has been revised due to an infection and one each in the two groups are awaiting revision surgery for loosening. Our findings have shown that there is no significant difference in the 5 year results of a PCL-retaining total knee replacement if the PCL is excised or preserved. This suggests two significant points:
the PCL is not functional in most patients with a total knee replacement even when retained: patients with excised PCLs show good results with PCL retaining implants, thereby questioning the need for posterior stabilised designs in all such cases.
Statistical analysis was performed on the data collected through DASH questionnaires along with multivariate and univariate analysis and t-tests.
48 % of patients showed a rise in DASH scores after the fracture healing, indicating decrease shoulder function. This was statistically analysed and failed to reach any significance p=0.867. There was no difference between the two techniques in terms of complications and union rates.
Clinical and radiographic data on 47 hips in 45 patients with Developmental Hip Dysplasia who underwent either a Salters Innominate Osteotomy or a Femoral Derotation Varus Osteotomy by a single operator were reviewed. The average age of patients at the time of osteotomy was 21 months (range 12–108 months). Clinical evaluation was performed with use of the lowa hip rating score and the Harris hip score. Radiographs were evaluated pre=operatively, post-operatively and at final review. The mean duration of follow-up was 15 years 9 months (range 10–21 years). Thirty-five patients had a Salter innominate osteotomy, 11 a derotation varus osteotomies and one a Klisic. Al last follow-up examination the Iowa hip rating averaged 96.6 (range 62 to 100) and the modified Harris Hip Score averaged 96.8 (range 48 to 100). Forty seven percent of patients reported abductor fatigue after sport. Forty-one patients had excellent result with a Severin class I hip on radiographic evaluation. All of these patients had an Iowa index >
95 and a mean Centre-Edge angle of 35.5 (range 25–40). Six patients had a poor radiological outcome with 5 Severin class IV hips and one class V. Clinical outcome scores did not correlate with poor radiological outcome; Iowa hip score 92 (range 62–100). One patient required a Ganz periactabular osteotomy. The age at which primary osteotomy was performed was significantly higher in the poor outcome group with a mean of 50.8 months. When the anatomy of the hip is restored to normality at an early age with out the development of avascular necrosis excellent long-term results can be expected.