Jeon-Gyo Kim

Morton's neuroma (interdigital neuralgia) treated with metatarsal sliding osteotomy

Background: Mortons neuroma is a common cause of metatarsalgia and many treatments had been described in literature. However, there have been only a few reports that treat the neuroma with an osteotomy on the proximal, not distal portion of the metatarsal bone using a plate. This study describes the clinical outcome of sliding osteotomy on the proximal metatarsal bone for the treatment of Mortons neuroma. Materials and Methods: Sixty five consecutive patients (85 feet) who underwent surgery for Mortons neuroma between November 2010 and February 2013 were identified from hospital records to include in this retrospective study. Average followup period was 37.3 months (range 24–51 months). Mean patient age at surgery was 50.2 years (range 23–75 years). Metatarsal sliding osteotomies were only performed on the third metatarsal bone. Clinical evaluations with the American Orthopaedic Foot and Ankle Society Lesser Metatarsophalangeal Interphalangeal Scale (AOFAS LMIS) and Foot Function Index (FFI) were performed. The length of the lesser toe was measured for radiologic evaluation. Results: Postoperatively, AOFAS LMIS and FFI were improved from 52.1 (range 45–60) and 62.4 (range 54–73) to 74.2 (range 68–86) and 31.3 (range 26–37). At the last followup, preoperative pain was dissolved in 79 feet (93% of overall 85 feet). A shortened 3.2 mm (±1.1) metatarsal bone following osteotomy was radiographically measured. There were six cases of complications (soft tissue infection, early numbness, delayed union, limitation of dorsiflexion and metal failure, etc.). Conclusions: This proximal metatarsal sliding osteotomy can be a relatively effective operative method in relieving pain from Mortons neuroma.

Radiologic Factors Affecting Ankle Pain Before and After Total Knee Arthroplasty for the Varus Osteoarthritic Knee

Abstract The aim of the present study was to evaluate the radiologic factors related to ankle pain before and after total knee arthroplasty (TKA) among patients with a varus osteoarthritic knee. Fifty‐five patients (65 ankles) with a varus osteoarthritic knee who had undergone TKA and were followed up for >24 months were enrolled. For clinical assessment, the visual analog scale for pain and the American Orthopaedic Foot and Ankle Society ankle‐hindfoot scale were used. For radiologic assessment, the mechanical axis deviation angle, talar tilt, tibial anterior surface angle, distal medial clear space, medial tibiotalar joint space, frontal tibial ground angle, and hindfoot alignment view angle were measured. The patients with ankle pain before TKA (11 ankles) had a larger hindfoot alignment view angle (9.2° ± 2.6°) than that of patients without ankle pain before TKA (54 ankles; 5.5° ± 4.8°; p = .007). The patients with newly developed ankle pain or experienced an aggravation of existing pain after TKA (8 ankles) had a significantly larger degree of residual varus (5.1° ± 2.1°) than did the patients without ankle pain before and after TKA or those with ankle pain before surgery. However, the severity of the pain was not different during the follow‐up period (52 ankles; 1.6° ± 2.5°; p = .001). The results of the present study showed that residual varus deformity was associated with ankle pain after TKA. Surgeons should perform evaluations of the ankles of patients who complain of pain before and after TKA and should give careful attention to the correction of alignment during TKA. &NA; Level of Clinical Evidence: 3

Ankle Arthrodesis: A Comparison of Anterior Approach and Transfibular Approach

Background The purpose of this study was to compare clinical and radiological results of arthrodesis performed by the anterior approach and by the transfibular approach in ankle osteoarthritis. Methods Sixty patients underwent open arthrodesis (38 by the anterior approach and 22 by the transfibular approach). The visual analogue scale score and the American Orthopedic Foot and Ankle Society (AOFAS) score were examined clinically, and radiological examination was performed on the alignment of the lower extremity and bone union. Results Both groups showed significant improvement in AOFAS score (from 39.8 to 58.3 in the anterior approach group and from 44.5 to 60.7 in the transfibular approach group). There was no significant difference in AOFAS score at the last follow-up in both groups. The time to fusion was 13.5 weeks in the anterior approach group and 11.8 weeks in the transfibular approach group. Nonunion occurred in four cases in the anterior approach group and in one case in the transfibular approach group. Conclusions Ankle arthrodesis by the anterior approach and the transfibular approach showed comparably good clinical results.

Second-Look Arthroscopic Findings and Clinical Outcomes After Management of Intra-Articular Lesions in Acute Ankle Fractures with Arthroscopy

Category: Ankle, Arthroscopy, Trauma Introduction/Purpose: Anatomically successful surgical reduction of ankle fractures does not always result in a clinically favorable outcome. The purpose of the present study was to compare initial and second look arthroscopic finding of acute ankle fracture and to evaluate clinical outcomes. Methods: A total of 39 patients (40 ankles, 20 male, 20 female) who underwent surgery for ankle fracture between March 2009 and August 2016 were retrospectively reviewed. All patients gave consent to the exploratory arthroscopic surgery for the removal of internal fixation devices placed in the initial surgery. Intra-articular lesions (osteochondral lesion, loose body, injury of ligaments and fibrosis) were evaluated via ankle arthroscopy. Arthroscopic finding of osteochondral lesion were classified using the Ferkel and Cheng staging system, and cartilage repair was assessed using the international Cartilage Repar System (ICRS). Clinicial outcomes were evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale and Visual Analogue Scale (VAS) Results: Chondral lesions were found in 26 ankles (65%) with initial arthroscopic finding of acute ankle fracture. Newly discovered chondral lesions in second-look arthroscopy was 15 cases. Accoding to the Ferkel and Cheng staging at second-look arthroscopy, 4 of 23 ankles with chondral lesions of talus was getting worse (more than stage D). In terms of ICRS overall repair grades, 4 ankle (15%) were abnormal (grade III). Diffuse synovitis and arthrofibrosis were found in 12 and 7 ankles respectively in second-look arthroscopy. Correlation were found between AOFAS scores, VAS and intra-articular lesions with second-look arthroscopy. Conclusion: Second-look arthroscopic examination combined with treatment of intra-articular lesion arising from ankle fracture surgery may consider to improve clinical outcomes.

Suture-Tape Augmentation for Chronic Ankle Instability

Category: Ankle Introduction/Purpose: This retrospective study was performed to evaluate the clinical outcomes of internal brace technique using suture tape for chronic ankle instability. Methods: twenty-three patients were followed for more than 2 years after suture tape augmentation for lateral ankle instability. Twenty five patients were followed for more than 2 years after modified Brostrom procedure. The clinical results after using two techniques were evaluated and compared using Foot and Ankle Outcome Score (FAOS), American Orthopaedic Foot and Ankle Society (AOFAS) score, Olarud and Molander score, Hamilton score and Visual Analogue Scale (VAS). Anterior talar translation and talar tilt angle were obtained from stress radiographs to evaluate the mechanical ankle stability. Results: There was no significant difference in VAS at final follow-up (P < .325). There was no significant difference in FAOS at final follow-up (P < .242). There was no significant difference in AOFAS score at final follow-up (P < .418). There was no significant difference in Olarud and Molander score at final follow-up (P < .244). According to the Hamilton score, 14 cases (93%) in internal brace group and 23 cases (92%) achieved satisfactory functional results. Talar tilt angle and anterior talar translation had improved to an average of 2.2 degrees and 4.4 mm in internal brace group and 2.7 degrees and 5.4 mm in modified Brostrom group, respectively, at final follow-up, and there was no significant difference (P < .128, < .226, respectively). There were no complications such as skin irritation and wound infection. Conclusion: Suture tape augmentation has shown the potential for stabilizing the lateral ankle ligmament complex as an alternative to direct repair. Functional, objective, and subjective outcomes were excellent in all cases and no complications were seen postoperatively. To confirm the above further, it is appropriate to conduct a larger study.