Introduction

We hereby present results of controlled randomized trial of use of popliteal block for pain relief in ankle and hind foot surgery.

Introduction: We present the results of a controlled randomized trial of the use of a popliteal block for pain relief in ankle and hindfoot surgery.

Materials and methods: We studied 47 patients over period of nine months in 2007 to 2008. Patients undergoing an ankle or hindfoot procedure were included in the trial. The trial was explained to the patients. Written information leaflets were also used in the preoperative clinics. Patients were randomized on the day of surgery. A sealed envelope randomizing the patient to block (A), or no block (B) was opened in the anaesthetic room before the patient was anaesthetised. Patients were subjective pain scores were recorded at 30 min, 6, 12 and 24 hours after surgery. The amount of analgesia required and time to first dose was documented. One foot and ankle consultant and one trained fellow gave the popliteal blocks. The block was administered in the lateral position at 0.8 mAmp stimulus to detect the nerve. Group A and B data was compared statistically.

Results: The average pain scores in group A were reported to be 1.2 at 30min, 1.23 at 6, 2.1 at 12 and 3 at 24 hours. In group B it was 1.2 at 30min, 7.2, 8.1 and 4 at 6, 12 and 24 hours. There was a statistical significant difference in the pain scores at 6 and 12 hours. There was no statistical significant difference in the pain scores at 30 min and 24 hours.

Conclusion: Popliteal block gives effective pain relief in ankle and hindfoot surgery. We believe that it may reduce anaesthetic and analgesic drug requirement as well.

Pilon fractures of the distal tibia pose a difficult therapeutic problem. Various treatment methods exist. We present encouraging early results with the Medial Tibial LISS plate (LCDCP) for these injuries.

Materials and Methods: 7 patients (5 male:2 female); age: 34 (range 26–59); All closed injuries 3 type 1; 3 type 2; 1 type IIIc; Average time from injury to surgery: 6 days (4–12 days).

Technique: 4 patients had preliminary joint-spanning fixator; 4 patients had fibular plating through a posterolateral incision; A curved anteromedial incision was used to avoid plate exposure in case of wound breakdown. Medial Tibial LISS plate with inter-fragmentary screws to reduce main fracture fragments. Early, non-weight bearing mobilization.

Results: Minimum Follow Up: 6 months (range 6–18 months). Union was obtained in all fractures. Joint reconstruction was graded as anatomical in 3 patients, mildly non-anatomical in 3 patients, and markedly incongruent in 1 patient (Type IIIc3). ROM: average 10° Dorsiflexion and 30° Plantarflexion. Pain: None in 4, mild in 2, and severe in 1. Wound healing problems: 1 minor requiring no surgical intervention, 1 requiring debridement of distal tibial wound.

We conclude that this technique offers a viable alternative to other methods in the treatment of these difficult injuries.

Periarticular fractures of the proximal tibia are some of the most difficult fractures to manage as open reduction and internal fixation of the fractures is plagued with complications such as non-union, delayed union, infection and post-traumatic osteoarthritis.

We evaluated the results of 16 consecutive periarticular tibial fractures stabilised with the AO hybrid fixator using the Oxford Knee Score, American Orthopaedic Foot and Ankle Score (AOFAS) and X-rays of the tibia. Two patients were lost to follow up and 1 patient refused to take part in the study whose latest radiographs showed grade 4 degenerative changes.

The mean follow up was 34 months (range 12 to 57 months) and the mean age was 50 years. All fractures were closed and were graded as either Schatzker 5 or 6. The fixator was applied for an average of 12 weeks. The mean Oxford Knee score was 27.2/60 (mild to moderate knee arthritis) and the mean AOFAS was 71.9/100. There was no significant malunion however 37.5% had developed radiological evidence of grade 3 or 4 post-traumatic osteoarthritis with one requiring a total knee replacement. Forty four percent of patients developed a complication with pin site infection being the commonest complication and 25% required further surgery. There were 2 nonunions with one requiring a fibular osteotomy, which subsequently united.

Eighty eight percent of patients were satisfied with the procedure while 80% would recommend the procedure if required in future.

From our study we feel that hybrid fixation of proximal periarticular tibial fractures is satisfactory however preoperative counselling regarding complications and the possible need for further surgery must be emphasised to the patient prior to embarking on this type of fixation.