Background

The decision to resurface the patella during total knee arthroplasty remains controversial. Aim of our study was to evaluate the functional difference between patients undergoing medial rotation knee (MRK) replacement with and without patellar resurfacing at our hospital.

Background: Ankle sprains are common with the majority resolving with simple measures. Some patients may have residual pain and instability caused by functional instability. Intraarticular scar formation has been implicated in these patients. Few studies have shown the effectiveness of arthroscopic procedure in treatment of this condition.

Aim: Our aim was to assess the role of arthroscopy in functional instability of the ankle.

Methods: We performed retrospective analysis of case-notes of patients who presented with functional ankle instability from 2005 – 2007 who had failed a trial of conservative therapy and who had ankle arthroscopy, provided there was no true instability as determined by EUA and stress xrays.

Results: Out of 77 patients with a mean age of 38.1, 5 patients had true mechanical instability. They underwent open repair of the lateral ligaments and were excluded from the study. 21 had steroid injections which gave temporary improvement in 11 of them but eventually all of the 72 remaining stable patients underwent ankle arthroscopy. 67 (76.7%) had significant amounts of scar tissue present which needed debridement, most commonly in the antero- lateral corner (58.3%). 52 patients improved (72.2%), 20 patients (27.8%) did not improve. 2 patients suffered a superficial wound infection. 17 patients had an osteochondral talar lesion. Of these, 14 patients improved, 2 did not and 1 patient did not attend follow up.

Outcome: Our study supports the role of arthroscopy in the treatment of functional ankle instability resistant to conservative treatment. Significant improvement in symptoms can be expected in about 70% of patients following arthroscopic debridement of scar tissue rising to approximately 90% if there is an associated talar osteo-chondral lesion. Ankle arthroscopy is associated with a low complication rate and should be offered to patients with functional instability when conservative measures have failed especially if an osteochondral lesion has been identified.

Hind foot arthrodesis through traditional lateral approach in patient with severe valgus deformity carries a significant risk of wound breakdowns, infection and the risk of sural nerve damage. It is also difficult to fully correct a severe valgus deformity through the lateral approach. To overcome some these problems a medial approach has been recommended. Few authors have reported good results in a small series of cases.

We present a retrospective review of 18 consecutive patients with valgus hind foot deformity who underwent hind foot arthrodesis via a medial approach. There were 10 male and 8 female with an average age of 55 years (range 28–75years). The indications included osteoarthritis in 13; post traumatic OA in 3 and rheumatoid arthritis in 2. The mean pre-op subtalar valgus angle was 32o (range 12 – 49) and mean post op valgus angle was 17 (range 10 – 25). All the wounds healed primarily and there were no incidence of wound breakdown or infection. None of the patients developed neuro-vascular complications. The average time for fusion was 5.6 months (range 3–9). Two patients needed further surgical intervention, one for FHL tethering at the fusion site and one for non-union of subtalar joint in a chronic smoker.

The medial approach not only allows a safe and fantastic access to subtalar joint making correction of valgus deformity easier but is also extendable to include talo- navicular and naviculo-cunieform fusion and FDL transfer as additional procedures through the same approach as and when indicated

In conclusion we recommend the medial approach for performing subtalar arthrodesis in valgus hind foot deformities

Steroids are known to have an adverse effect on the blood glucose levels in diabetics. Intra-articular steroids are commonly used in Orthopaedic and Rheumatology practice. However we have failed to identify any studies to date that have been carried out on the short-term effect of intra-articular steroids in diabetics who are taking insulin. This study was carried out to establish the effects of intra-articular (IA) steroid injections on the blood glucose levels and insulin requirements for insulin dependant diabetic patients treated for a “Frozen Shoulder”.

Methods: Insulin-dependant diabetic patients suffering from a “Frozen Shoulder” who were referred to our out patient clinics were recruited prospectively for this study. Each patient received 40 mg of long acting steroid plus 9 mls of 0.5% Marcain injected intra-articularly into the glenohumeral joint. They were each asked to record their subsequent blood glucose levels and insulin requirements on a form, four times a day for seven days post injection. Each patient was seen again at 6 weeks and, when appropriate, they were offered a second intra-articular injection according to the recommendations of Jacobs et al¹ (1991).

Results: Fifteen patients were recruited into the study. All patients reported a disturbance of their blood glucose control in the post injection period lasting for a variable period up to seven days. Approximately one third of patients found it necessary to increase their daily insulin requirements during the first two days after the injection.

Conclusion: IA steroid injections cause disturbance of the blood glucose control in insulin dependant diabetics. Patients must be warned regarding this side effect when IA steroid injections are given.