Introduction:. The Scandinavian Total Ankle Replacement (STAR) is a three-component, uncemented implant in widespread use throughout Europe. STAR has achieved encouraging results with short and medium term outcome. We present the long term (13–19 year) results of a consecutive series of 200 STAR ankles. Methods:. Between November 1993 and February 2000, a total of 200 consecutive STARs were carried out in 184 patients. Patients were followed up both clinically and radiologically, until death or failure, with time to decision to revision or fusion as the endpoint. Pain and function were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle and hindfoot score. Results:. Of the 200 STARs, 109 (105 patients) were alive at latest review. 12 STARs (11 patients) were lost to follow-up, leaving 97 ankles for clinical review. Of these, 76 ankles were surviving and 21 ankles had failed [13 underwent arthrodesis, 4 had an exchange of poly insert, and 4 had a revision TAR], with mean time to failure 82 months (2–156 months). For the 91 ankles in 79 patients who died during the study, 8 had failed [6 underwent revision TAR and 2 had an arthrodesis]. The implant survival at 15 years with endpoint of revision for any reason was 76.9% [95% CI 66.4 to 87.3]. The mean AOFAS score was 72 [20 to 96]. The mean annual failure rate was 1.5%, which was steady across the study period. Conclusion:. The 15 year survivorship for the STAR prosthesis was 76.9%, which provides a benchmark for other later design ankle prostheses. We found no drop off in failure rate or function over the study period

Introduction:. In a consecutive series of 71 arthroscopic subtalar arthrodeses performed between 2004 and 2011, 14 also involved arthroscopic decortication of the talonavicular joint (double arthrodesis) and 4 the subtalar, talonavicular and calcaneocuboid joints (triple arthrodeses). Methods:. We examined complications, union rates in all 18 patients and clinical outcomes in 16 for whom this was the sole procedure. Results:. Mean age was 62 (45–78). Two talonavicular joints failed to unite and a third patient suffered a diabetic Charcot midfoot neuro-arthropathy. These patients' outcomes were classified as poor. Two patients underwent planned major ankle or midfoot surgery in addition to arthroscopic double arthrodeses. These joints united but these patients were not included in the clinical review to avoid confounding outcomes. Mean follow-up for the remaining 13 patients was 4.4 (1.75–7.5) years. There were no immediate perioperative complications. All 4 patients with triple fusions united with good or excellent outcomes. The nine patients receiving double arthrodesis united with 8 good or excellent outcomes. The remaining patient reported good deformity correction and stability but disappointing pain relief, (classification poor). Conclusions:. Double and triple arthrodeses remain valid salvage options for painful arthrosis and severe deformity. Preservation of the calcaneocuboid joint permits a relative lateral column lengthening when correcting planovalgus deformity. Arthroscopic surgery offers preservation and protection of soft tissues and reduces wound tension. The sinus tarsi approach permits good visualisation and decortication of the triple joints and rotatory correction of deformity. This technique is not appropriate when there is extensive bone loss requiring block bone grafting. Early complications are reduced and late complications such as non-union and arthrosis of adjacent joints seem similar to those reported in studies on open arthrodeses

Introduction. Hallux valgus deformity is a common potentially painful condition. Over 150 orthopaedic procedures have been described to treat hallux valgus and the indication for surgery is pain intractable to nonoperative management. Methods. A retrospective analysis of the treatment of complex hallux valgus with bifocal metatarsal and Akin osteotomies of the first ray performed by the senior author (CC). 22 patients were treated over a three year period from 2008 to 2011, 24 trifocal osteotomies were undertaken. Hallux valgus angle (HVA), intermetatarsal angle (IMA) and distal metatarsal articular angle (DMAA) were all measured from pre- and postoperative radiographs. The patients were also clinically reviewed. Results. The study group consisted of 21 women and 1 man with a mean age of 53 years. The average time to follow up was 19 months. Four cases had undergone previous surgery. Average HVA correction was 26.9 degrees (p < 0.0001), average IMA correction was 12.65 degrees (p < 0.0001). No patients had postoperative infection and all osteotomies went on to union. All patients reported resolution of pain. Two patients required removal of metalwork and the distal osteotomy angulated slightly in one patient not requiring reoperation. Conclusion. We demonstrate that bifocal metatarsal and akin osteotomies of the first ray are a safe and effective method of correcting complex hallux valgus

Introduction. There are a number of options available for surgical management of hallux rigidus. Ceramic implants of the first metatarsophalangeal joint (MTPJ) have been available for years; however there are no published long-term results existing. Methods. We performed a retrospective review of all consecutive first MTPJ replacements carried out for later stage hallux rigidus using second generation MOJE ceramic implant with press-fit design. Two specialised foot and ankle surgeons performed these operations at a tertiary referral centre. Patient underwent regular follow ups including clinical review, functional scoring (AOFAS and FFI) and assessment of radiographs. Kaplan Meyer Survival analysis was performed. Results. Our study included 31 prostheses in 24 female patients. Average age at operation was 55.3 years and average follow up time was 80 months. No patients were lost until follow up. Complications included one case of superficial infection and five cases of revision, reasons being fracture of the prostheses (1), unexplained pain (1), subluxation (1) and loosening/sinkage of the implant (2). Prosthesis survival rate was 85.2% at seven years. Assessment of the radiographs showed considerable sinkage of the prosthesis in 43%, tilting in 33% and loosening of the implant in 40.9%. Average postoperative AOFAS score was 71.6 and the average FFI was 27.7. 84% of the patients were satisfied with the results of their operation. Conclusion. Surgery has failed to preserve the function and increase the range of movement in most cases in the long duration. From the patients perspective however the satisfaction with the procedure suggests a success of the implant. Due to poor radiological results and high revision rate we do not recommend the routine use of this prosthesis and all patients that have this type of prosthesis need regular follow up consultations at least yearly with radiographs to assess the position of the implant

Introduction. Hallux Rigidus affects 2–10% of population, usually treated with cheilectomy or arthrodesis, however, for the subclass of patients who refuse to undergo fusion, Arthroplasty is an alternative solution, it maintain some degree of motion and provide pain relief. Toefit; is one of the prostheses being used. It is a total joint replacement with polyethylene insert. The aim of this study is to find clinical and radiological outcomes of Toefit arthroplasty. Method. A prospective study. Ethical committee approval was obtained. Patient who have received Toefit Arthroplasty with at least 12 months follow-up and were willing to participate in the study were included. Patients were reviewed by independent surgeon. Questionnaires were completed followed by clinical examination. This followed by radiographic assessment. Patients, who were willing to take part in the study but could not attend a clinical review, were invited to participate in telephone questionnaire. Pre and postoperative AOFAS scores were compared, patients' satisfaction and clinical and radiological outcome were assessed using descriptive statistics, t-test and survivalship analysis were done. Results. 180 patients had Toefit (September 2004–June 2011). 160 patients participated in the study (170 prostheses), 87% were females. Age range (38–89) year. AOFAS improved significantly from 38 to 83, with average arc of movement of 37 degrees. Patient satisfaction was high, VAS score1. Failure rate of 4.9%, there was high rate of revision of 29% due to sesamoid pain or stiffness in the initial group of patients, decreased to 8% in the second group. Radiological review showed asymptomatic aseptic loosening of 20%, mainly of the proximal phalanx components. Conclusion. First MTP joint replacement can provide pain relief and maintain good range of movement. However, this study highlighted high rate of revision and aseptic loosening. Long term review is required

Introduction. The Mobility™ prosthesis [Depuy] is the most extensively used TAR in the UK, though there are few published results. We present our complete experience of the Mobility prosthesis in a diverse population. Methods. From March 2005 to December 2009, 84 consecutive Mobility ankle replacements were performed by the senior author, in 79 patients (28 female, 51 male) with mean age 64.5 years (43–80). This complete cohort included the first and last cases with this implant. Mean follow-up was 50.1±18.2 months (range 14–86). Patients with ankle replacements in situ, were reviewed clinically and radiologically. Clinical outcome measures were: AOFAS score, MOXFQ (adapted for the ankle), and VAS for pain. Post-operative radiographs were reviewed to assess component position and examine for zones of lucency. Results. At final review, 1 patient had died (unrelated), 13 had been revised as follows: . Arthrodesis 7. Further TAR 2. Talus only revised 1. Tibia only revised 1. Amputation 2 (one for an unrelated problem). Exchange of bearing had been carried out in 4. Intra-operative malleolar fractures occurred in 4.8% and were internally fixed. 62 patients attended for clinical review and 8 completed postal questionnaires. At follow up:. Mean AOFAS hindfoot score was 72.4±17.5 (0–100). Mean MOXFQ scores were:. Walking/Standing 40.8±28.4. Pain 31.6±20.8. Social 23.1±23.0. Mean VAS 2.7±2.3. Survival of the implant was:. 91.7 (CI 83.4–96.0) at 2 years. 89.2 (CI 80.2–94.2) at 3 years. 84.1 (CI 73.4–90.8) at 4 years. 84.1 (CI 73.4–90.8) at 5 years. 78.9 (CI 62.6–88.7) at 6 years. Conclusion. This study is a complete review and our failure rate is comparable to other publications. Early failures included some poor case selections with large pre-operative deformity and reflects the initial period of the learning curve of TAR. Longer term follow up is needed to evaluate for ongoing failures and monitor progressive radiolucency

Introduction. Flexor digitorum longus (FDL) transfer and medial displacement calcaneal osteotomy (CO) is a well-recognised surgical treatment for stage II posterior tibial tendon dysfunction (PTTD). Whilst excellent results are quoted for short and medium term follow-up, the long-term outcome of this procedure is unknown. Materials and Methods. We reviewed the clinical outcome of patients with a symptomatic flexible flatfoot deformity undergoing this procedure at a mean follow up of 15.3 +/−0.7 years (range 14.4–16.5). We identified 48 patients who underwent surgery by the senior author between 1994 and 1996. We were able to contact 30 patients of whom 20 were available for clinical review. 10 patients participated via telephone interview, and also completed postal questionnaires. Results. All scores improved significantly from preoperative to latest follow-up. The mean AOFAS score improved from 48.4 presurgery to 90.0+/−13.6 (range 54–100) postsurgery. The pain component improved from a mean of 12.3 to 35.0+/−8.1 (range 20–40). Function score improved from 35.8 to 45.5+/−6.1 (range 30–50). Visual analogue score improved from 7.3 to 1.3+/−2.2 (range 0–6). Seven patients had only fair objective alignment, however six of those were totally satisfied and one satisfied with minor reservations, and all said they would have the surgery again. The mean SF36 physical component score was 39.8+/−8.4 and this showed significant correlation with the AOFAS score (r = 0.61, p = 0.009). Five patients developed further pain unresponsive to analgesia and orthotics and underwent further surgery in the form of calcaneocubuoid fusion, talonavicular fusion or triple fusion at a mean of 5.5+/−4.7 years (range 0.7–11.8) following initial surgery. 25(83%) patients were pain free and functioning well at an average of 15.3 years following surgery. Conclusion. We believe that FDL transfer and CO provides long-term pain relief and satisfactory function in the treatment of Stage II PTTD

Aims

Flexor hallucis longus (FHL) tendon transfer is a well-recognized technique in the treatment of the neglected tendo Achillis (TA) rupture.

Flexor digitorum longus transfer and medial displacement calcaneal osteotomy is a well-recognised form of treatment for stage II posterior tibial tendon dysfunction. Although excellent short- and medium-term results have been reported, the long-term outcome is unknown. We reviewed the clinical outcome of 31 patients with a symptomatic flexible flat-foot deformity who underwent this procedure between 1994 and 1996. There were 21 women and ten men with a mean age of 54.3 years (42 to 70). The mean follow-up was 15.2 years (11.4 to 16.5). All scores improved significantly (p < 0.001). The mean American Orthopedic Foot and Ankle Society (AOFAS) score improved from 48.4 pre-operatively to 90.3 (54 to 100) at the final follow-up. The mean pain component improved from 12.3 to 35.2 (20 to 40). The mean function score improved from 35.2 to 45.6 (30 to 50). The mean visual analogue score for pain improved from 7.3 to 1.3 (0 to 6). The mean Short Form-36 physical component score was 40.6 (sd 8.9), and this showed a significant correlation with the mean AOFAS score (r = 0.68, p = 0.005). A total of 27 patients (87%) were pain free and functioning well at the final follow-up. We believe that flexor digitorum longus transfer and calcaneal osteotomy provides long-term pain relief and satisfactory function in the treatment of stage II posterior tibial tendon dysfunction.

Cite this article: Bone Joint J 2015;97-B:346–52.

We present the outcomes in 38 consecutive patients who had total ankle replacement using the Ankle Evolution System with a minimum follow-up of four years. Pain and function were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) score and regular standardised anteroposterior and lateral weight-bearing radiographs were obtained. Patient satisfaction and complications were recorded and the survival of the implants was demonstrated by the Kaplan-Meier method.

The mean follow-up was for 57.8 months (48 to 80). The cumulative survival rate at six years was 94.7% (95% confidence interval 80.3 to 98.7). The mean total AOFAS score was 88.1 (53 to 100). The mean score for pain was 35.8 (20 to 40). Ten patients presented with edge-loading of whom nine had corrective surgery. Two ankles were revised, one to an arthrodesis and the other to replace the tibial component. Nine patients showed radiological evidence of osteolysis. They had minimal non-progressive symptoms and further surgery was not undertaken. Nevertheless, the concerns about osteolysis led to the implant being withdrawn by the manufacturer.

The medium-term results of the ankle evolution system ankle replacement are satisfactory with high patient satisfaction, but the rate of osteolysis is of some concern. The long-term benefit of this procedure has yet to be determined.

Distraction bone-block arthrodesis has been advocated for the treatment of the late sequelae of fracture of the os calcis. Between 1997 and 2003 we studied a consecutive series of 17 patients who had in situ arthrodesis for subtalar arthritis after fracture of the os calcis with marked loss of talocalcaneal height. None had undergone any previous attempts at reconstruction. We assessed the range of dorsiflexion and plantar flexion and measured the talocalcaneal height, talocalcaneal angle and talar declination angle on standing lateral radiographs, comparing them with the normal foot. The mean follow-up was for 78.7 months (48 to 94).

The mean American Orthopaedic Foot and Ankle Society hindfoot score improved from 29.8 (13 to 48) to 77.8 (48 to 94) (Student’s t-test, p < 0.001). The mean loss of talocalcaneal height was 10.3 mm (2 to 17) and the mean talar declination angle was 6.7° (0° to 16°) which was 36% of the normal side. One patient suffered anterior ankle pain but none had anterior impingement. Two patients complained of difficulty in ascending slopes and stairs and four in descending. The mean ankle dorsiflexion on the arthrodesed side was 11.6° (0° to 24°) compared with 14.7° (0° to 24°) on the normal side, representing a reduction of 21.1%. The mean plantar flexion on the arthrodesed side was 35.5° (24° to 60°) compared with 44.6° (30° to 60°) on the normal side, a reduction of 20.4%.

These results suggest that anterior impingement need not to be a significant problem after subtalar arthrodesis for fracture of the os calcis, even when the loss of talocalcaneal height is marked. We recommend in situ arthrodesis combined with lateral-wall ostectomy for all cases of subtalar arthritis following a fracture of the os calcis, without marked coronal deformity, regardless of the degree of talocalcaneal height loss.

We present a series of 16 patients treated between 1993 and 2006 who had a failed total ankle replacement converted to an arthrodesis using bone grafting with internal fixation. We used tricortical autograft from the iliac crest to preserve the height of the ankle, the malleoli and the subtalar joint. A successful arthrodesis was achieved at a mean of three months (1.5 to 4.5) in all patients except one, with rheumatoid arthritis and severe bone loss, who developed a nonunion and required further fixation with an intramedullary nail at one year after surgery, before obtaining satisfactory fusion. The post-operative American Orthopaedic Foot and Ankle Society score improved to a mean of 70 (41 to 87) with good patient satisfaction. From this series and an extensive review of the literature we have found that rates of fusion after failed total ankle replacement in patients with degenerative arthritis are high. We recommend our method of arthrodesis in this group of patients. A higher rate of nonunion is associated with rheumatoid arthritis which should be treated differently.

We investigated the clinical and radiological outcome after unilateral fracture of the lateral process of the talus in 23 snowboarders with a mean follow-up of 3.5 years (12 to 76 months). In this consecutive cohort study both operative and non-operative cases were considered.

The mean American Orthopaedic Foot and Ankle Society hindfoot score was 94 (82 to 100). The non-operative group of seven with a minimally-displaced fracture scored higher (98 points) than the operative group of 16 with displaced or unstable fractures (93 points). In 88% of operative cases, significant concomitant hindfoot injuries were found at operation. All but eight (35%) patients (six operative and two non-operative) regained their pre-injury level of sporting activity. Subtalar osteoarthritis was present in nine (45%) of the 20 patients available for radiological review, including one late-diagnosed non-operative case and eight operative cases with associated injuries or fracture comminution.

The outcome after fracture of the lateral process of the talus in snowboarders is favourable provided an early diagnosis is made and adequate treatment, which is related to the degree of displacement and associated injuries, is undertaken.