Objective: The reported incidences of traumatic and iatropathic nerve injuries with supracondylar fractures in children are 12–16% and 6% respectively, with the majority recovering spontaneously. We performed a retrospective review of lesions referred to our tertiary unit to determine the incidence of surgical intervention.

Methods: Between 1997 and 2002, 37 neuropathies (associated with 32 supracondylar fractures) in 19 males and 13 females with an average age of 7.9 years were referred for further management. 8 fractures were classified as Gartland grade 2 and 24 as grade 3. All fractures were closed, with 2 treated non-operatively, 20 by closed reduction and percutaneous pinning and 10 by open reduction and internal fixation at the referring hospitals.

Results: The ulnar nerve was the most frequently injured (51.4%), followed by median (27%) and radial (21.6%) nerve palsies. 14 (37.8%) neuropathies were related to the fracture, while 23 (62.2%) were iatropathic. 10 patients (31.3%) required operative exploration while 3 (9.4%) were listed for surgery but were cancelled as they were recovering. Nerve grafting was used in 4 of the 10 operated cases, the donor nerve being the medial cutaneous nerve of the forearm in 3 and the superficial radial nerve in one. 26 patients (81.3%) had excellent outcomes, 5 (15.6%) good and 1 (3.1%) fair.

Conclusion: Although most had excellent outcomes, surgical exploration was required for nearly a third of the cases referred to our unit. This is in contrast to the current literature, which suggests that the majority of supracondylar neuropathies recover spontaneously.

Introduction: Traumatic and iatropathic nerve injuries complicate 6–16% of paediatric supracondylar extension fractures of the humerus. The majority recover spontaneously. This retrospective review of lesions referred to our tertiary unit determined the incidence of surgical intervention.

Methods: Between 1997–2002, 37 neuropathies (32 fractures) in 19 males and 13 females (mean age 7.9yrs) were referred for further management. 8 fractures were Gartland grade 2 and 24 grade 3. All fractures were closed. Two were originally treated non-operatively, 20 by closed reduction and percutaneous pinning and 10 by open reduction and internal fixation.

Results: The ulnar nerve was most frequently injured (19, 51.4%), followed by median (10, 27%) and radial (8, 21.6%) nerve palsies. 14 (37.8%) neuropathies were fracture-related but 23 (62.2%) were treatment-related. 10 patients (31.3%) required operative exploration. Three (9.4%) were listed for surgery but cancelled due to nerve recovery. Nerve grafting using either the forearm medial cutaneous nerve or the superficial radial nerve was necessary in 4 of 10 operated cases. 26 patients (81.3%) had excellent outcomes, 5 (15.6%) good and 1 (3.1%) fair.

Discussion: In contrast to current literature suggesting that 86 to 100% of supracondylar associated neuropathies recover spontaneously within 2 to 3 months, surgical exploration was required in over 30% of cases.

Introduction: To determine the aetiology of peripheral nerve injuries presenting to a specialist centre, identify the management strategies employed and discuss the functional outcome achieved.

Methods: Retrospective review of all children referred to this hospital between 1996–2003 with an acquired nerve injury. Obstetrical brachial plexus palsy was excluded.

Results: 100 nerve injuries (94 patients) were identified. The mean age was 9.9yrs (0.5–16yrs). 81 injuries involved the upper limb, 19 the lower limb. Most were due to low energy trauma and associated with fractures or their surgical management. 16% presented with autonomic sympathetic dysfunction, 10% with neuropathic pain. 43 patients underwent at least one surgical procedure. The operation was classified diagnostic in 5 (no surgically remediable lesion identified), therapeutic in 33 (surgical procedure could be expected to aid recovery) and reconstructive in 5 (no improvement in nerve function could be achieved; functional improvement achieved by other means). Excellent functional outcome only occurred in conservatively treated cases and in some treated by neurolysis. Nerve grafts and direct repairs were associated with good outcomes. Delayed surgery was associated with fair outcomes.

Discussion: Peripheral nerve injuries in children as in adults require careful, prompt attention to obtain the best outcome. Iatropathic injuries must be acknowledged.

This study reports on postoperative changes of intra and epidural space of both degenerative lumbar spinal canal stenosis(DLSCS) and degenerative spondylolisthesis(DO)on MRI. 48cases(DLSCS:20cases, DO:28cases)were investigated in this study. All cases performed bilateral wide fenestration.

The average age of these patients was 65 years and average follow-up period was 60 months. The average improvement ratio(%) of JOA score was 68% at the last follow-up. Symptomes had deteriorated in 8 cases, according to an increase in the volume of the postlaminectomy membrane, at the last follow-up. There were 8 cases(29%)in DO. showing an increase of % slip on X-ray at the last follow-up, accompanied with both a slight decreasing of the cross-sectional area(CSA)of dural sac and a slight deterioration of clinical results.

Discussion: Symptomes in around 17% of the cases deteriorated, and there were three factors on MRI ; a poor expansion of the dural sac, a grouping of the cauda equina, and a decrease in the CSA of the dural sac.

Antibiotic-impregnated polymethylmethacrylate beads, which are used to deliver antibiotic directly to infected sites in the musculoskeletal system has been evaluated most widely. The disadvantages include reduced biocompatibility with bone, short duration of drug release, very low release rate and thermal damage to the antibiotics. For solving this problem, we developed the antibiotic-impregnated calcium hydroxyapatite ceramic implant (HA) as a new drug delivery system. This study is to evaluate the clinical results of the antibiotic-impregnated HA used for the treatment of infected total hip and knee arthroplasty. Twenty-two patients with infected arthroplasty treated antibiotic-impregnated HA were evaluated. There were 5 men and 17 women with a median age of 65 (range, 54–86 years). The study included 14 hips and 8 knees. The duration from the initial arthroplasty to the detection of the infection was 16 years at the longest (median of 2 years and 2 months). The most common microorganism was Staphylococcus aureus, presented in 13 patients. Antibiotic most frequently impregnated was Vancomycin. In five patients, debridement without removal of the prosthesis was performed with antibiotic-impregnated HA implanted in surrounding bone. In another three patients, one-stage revision was performed with antibiotic-impregnated HA. In fourteen patients, antibiotic-impregnated HA was used to fill the dead space after removal of the prosthesis (two-stage revision was performed in 9 patients). No patients developed evidence of recurrent infection at an average follow-up of 18.7 months. Antibiotic-impregnated HA is an excellent drug delivery system for the infected total hip and knee arthroplasty.

We have reviewed 20 patients stage-IIIB and stage-IV Kienböck’s disease in order to examine the efficacy of two forms of radial osteotomy, namely radial wedge osteotomy and radial shortening. Lateral closing wedge osteotomies and radial shortenings were carried out on 11 and nine patients, respectively. There were no preoperative differences with respect to age, gender, and radiological stage.

After a mean follow-up of 29 months, all patients, in both groups, had either a good or an excellent outcome. After the lateral closing wedge osteotomy, the radioscaphoid angle significantly increased and the St̊hl index significantly decreased. Progression of the degenerative changes at the radioscaphoid joint was found in two patients in this group. By contrast, there were no significant changes in any radiological parameters after radial shortening. Both procedures gave acceptable clinical results in stage-IIIB and stage-IV Kienböck’s disease.

The results and complications of 104 vascularised fibular grafts in 102 patients are presented. Bony union was ultimately achieved in 97 patients, with primary union in 84 (84%). The mean time to union was 15.5 weeks (8 to 40). In 13 patients, primary union was achieved at one end of the fibula and secondary union at the other end. In these patients, the mean time to union was 31.1 weeks (24 to 40). Five patients failed to achieve union, with a resultant pseudarthrosis (3 patients) or amputation (2 patients).

There were various complications. Immediate thrombosis occurred in 14 cases. In two of 23 patients with osteomyelitis, infection recurred at two and six months after surgery, respectively. Both patients had active osteomyelitis less than one month before the operation. Bony infection occurred in a patient with a synovial sarcoma of the forearm one year after surgery. In 15 patients, 19 fractures of the fibular graft occurred after bony union, all except one within one year after union. In patients in whom an external fixator had been used, fracture occurred soon after its removal. Union was difficult to achieve in cases of congenital pseudarthrosis of the tibia. Appropriate alignment of the fibular graft is an important factor in preventing stress fracture. The vascularised fibula should be protected during the first year after union.

Postoperative complications at the donor site included transient palsy of the superficial peroneal nerve in three patients, contracture of flexor hallucis longus in two and valgus deformity of the ankle in three.

Vascularised fibular grafts are useful in the reconstruction of massive bony defects. We believe that meticulous preoperative planning, including choosing which vessels to select in the recipient and the type of fixation devices to use, and care in the introduction of the vascularised fibula, can improve the results and prevent complications.

Nine children sustained a second fracture of the distal humerus after union of an ipsilateral supracondylar fracture which had healed with cubitus varus. There were eight boys and one girl with a mean age of five years (1 to 8) at the time of the second fracture which occurred at a mean of 1.5 years after the first. In all patients, the second fracture was an epiphyseal injury of the distal humerus, either associated with a fracture of the lateral metaphysis below the site of the previous supracondylar fracture, or a fracture-separation of the entire distal humeral epiphysis. This suggests that the physis and epiphysis tend to be more subject to injury than the metaphysis of the distal humerus in children who have had a previous supracondylar fracture with varus malunion.

We report two new radiographic projections for evaluating avulsion fractures at the lateral malleolus. We used seven freshly amputated legs with simulated avulsion fractures and radiopaque markers to assess their value.

The projections allow accurate assessment of the displacement of fragments without superimposition, and also show whether they affect the anterior talofibular or the calcaneofibular ligament or both.

We have developed a method of measuring anterior displacement of the calcaneus on the talus in instability of the subtalar joint and have used the technique to demonstrate anterior instability in 50 patients (72 feet) showing a positive drawer sign. The angle of the posterior facet of the talus was also measured to assess the bony configuration. Our patients with subtalar joint instability could be divided into three categories. The first group had a history of trauma leading to ankle instability (26 cases), the second showed generalised joint laxity (10 cases) and the third were young females with a history of chronic stress on the foot and a poor bony block (14 cases). Satisfactory results were obtained by treating the instability with a brace or by reconstruction of the interosseous talocalcaneal ligament.

We report the case of a 19-year-old man with inguinal lymphadenopathy caused by metallic debris from the loosening of a prosthesis inserted after tumour resection. Large amounts of wear debris may be released from such massive replacements, and surgeons should be aware of the range of possible adverse effects.