Publications (3)9.29 Total impact
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Article: Assessment of Hip Abductor Power in Foot Drop Patients: A Simple and Useful Test to Differentiate Lumbar Radiculopathy and Peroneal Neuropathy.
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ABSTRACT: Study Design. Prospective study on a diagnostic test.Objective. To determine the usefulness of hip abductor power assessment in the differential diagnosis of foot drop due to lumbar radiculopathy and peroneal neuropathy.Summary of Background Data. Foot drop arises from various neuromuscular conditions. Differential diagnosis is obvious in the typical case, however, is often inconclusive. There are few reports regarding the validity of hip abductor power in the differential diagnosis of foot drop.Methods. Sixty-one consecutive patients who presented with tibialis anterior weakness MRC grade < 3 were included and underwent neurological examination including the assessment of hip abductor power. Patient demographics, mechanism and pattern of foot drop, neurological findings, and the diagnoses were recorded. Final diagnoses were established on the basis of clinical information, imaging studies, and electrophysiological study in limited cases. Validity and reliability of the hip abductor power assessment in the differential diagnosis of foot drop due to lumbar radiculopathy and peroneal neuropathy were evaluated.Results. There were forty-four men and 17 women, with a mean age of 46.8 years (19 to 77). The final diagnosis was peroneal neuropathy in 28 patients, lumbosacral plexopathy in 9, lumbar radiculopathy in 21, and sciatic nerve disorder in 3. Concomitant hip abductor weakness was found in 85.7% of lumbar radiculopathy and 3.6% of peroneal neuropathy. The sensitivity and specificity of hip abductor power in the differential diagnosis of foot drop due to the lumbar radiculopathy and peroneal neuropathy were 85.7% and 96.4%, respectively. The positive and negative predictive values were 94.7% and 90%, respectively.Conclusion. Assessment of hip abductor strength is a simple and useful method in the differential diagnosis of foot drop due to lumbar radiculopathy and peroneal neuropathy.Spine 07/2012; · 2.08 Impact Factor -
Article: Is the anterior tibial artery safe during ankle arthroscopy?: anatomic analysis of the anterior tibial artery at the ankle joint by magnetic resonance imaging.
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ABSTRACT: Pseudoaneurysm of the anterior tibial artery (ATA) after ankle arthroscopy is an uncommon complication but can cause unexpected consequences. However, its contributing factor is not fully understood. Anatomic factors, such as ATA variations and the distance between the ATA and joint capsule, may contribute to the occurrence of pseudoaneurysm. Case series; Level of evidence, 4. The magnetic resonance images and medical records of 358 ankle cases were analyzed. According to locations of the ATA in relation to the peroneus tertius (PT) and the extensor digitorum longus (EDL) tendon on axial magnetic resonance imaging, patients were classified as type 1 (safe type), type 2 (increased risk type), or type 3 (high-risk type). In addition, distances between the anterior joint capsule and the ATA were measured to evaluate the thickness of the anterior fat pad, which contains the ATA and anterior compartment tendons. In 336 cases (93.8%), the ATA was located medial to the EDL (type 1, safe). In 7 cases (2.0%), the ATA was located lateral to the EDL and PT tendon (type 2, increased risk); and in 15 cases (4.2%), the branching artery was observed lateral to the EDL and PT tendon and the ATA was in the normal position (type 3, high risk). The mean distance between the anterior joint capsule and the ATA was 2.3 ± 1.1 mm. In 22 (6.2%) of the 358 cases, the ATA and its branches were located near the anterolateral ankle portal, which introduces the risk of vascular damage during arthroscopic surgery. Furthermore, the mean distance between the ATA and the joint capsule was only 2.3 ± 1.1 mm, and thus the ATA is very close to the anterior working space of the ankle joint. Careful preoperative evaluation and an intra-articular procedure may reduce the risk of vascular complications attributable to ankle arthroscopy.The American journal of sports medicine 07/2011; 39(11):2452-6. · 3.61 Impact Factor -
Article: Evaluation of transtibial double-bundle posterior cruciate ligament reconstruction using a single-sling method with a tibialis anterior allograft.
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ABSTRACT: The authors devised a double-bundle posterior cruciate ligament reconstruction technique in combination with a single-sling method. However, the double-bundle technique needs more simplicity and a decreased possibility of failure. A novel surgical technique of transtibial double-bundle posterior cruciate ligament reconstruction using a single-sling method with a tibialis anterior allograft, previously introduced, produces satisfactory results. Case series; Level of evidence, 4. Twenty-one patients who underwent double-bundle transtibial isolated posterior cruciate ligament reconstruction using a single-sling method between July 2003 and September 2007 were enrolled in this study. The exclusion criteria applied were (1) a multiligamentous injury, (2) posterior cruciate ligament reconstruction previously performed using another technique, and (3) the presence of any additional injury capable of affecting knee stability. The Lysholm and International Knee Documentation Committee (IKDC) knee scales were used for the clinical outcome evaluation. Stability was evaluated using a KT-2000 arthrometer. The evaluation was performed by comparing preoperative and last follow-up results. Nineteen men and 2 women were enrolled, with a mean follow-up of 49.2 months (range, 25-73 months). The mean Lysholm score was 53 ± 5.3 (range, 34-68) preoperatively and improved to 83.5 ± 13 (range, 61-97) at the last follow-up after surgery (P < .001). The IKDC score also improved from preoperative (0 A, 0 B, 7 C, 14 D) to final follow-up (8 A, 9 B, 3 C, 1 D; P < .001). Mean side-to-side difference in posterior translation, measured using the KT-2000 arthrometer, was 13.5 ± 1.2 mm preoperatively and 3.4 ± 0.8 mm at last follow-up evaluations (mean 51.7 months postoperatively). After follow-up for longer than 24 months, the transtibial double-bundle posterior cruciate ligament reconstruction with a single sling was found to produce satisfactory clinical and stability results, which indicates that the described technique should be viewed as a viable alternative.The American journal of sports medicine 11/2010; 39(2):374-9. · 3.61 Impact Factor
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2010–2011
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Ajou University
- Department of Orthopaedic Surgery
Seoul, Seoul, South Korea
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