Jae-Man Kwak1, Hyojune Kim1, Yucheng Sun2, Erica Kholinne3, Kyoung Hwan Koh1, In-Ho Jeon4. 1. Department of Orthopedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Republic of Korea. 2. Department of Orthopedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Republic of Korea; Department of Hand Surgery, Affiliated Hospital of Nantong University, Nantong, China. 3. Department of Orthopedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Republic of Korea; Department of Orthopedic Surgery, St. Carolus Hospital, Jakarta, Indonesia. 4. Department of Orthopedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Republic of Korea. Electronic address: jeonchoi@gmail.com.
Abstract
HYPOTHESIS: Arthroscopic osteocapsular arthroplasty for stage III osteoarthritis (advanced stage) shows worse clinical and radiologic outcomes compared with stage I or II according to computed tomography (CT)-based classification. METHODS: Clinical and radiologic outcomes in 65 patients treated with arthroscopic osteocapsular arthroplasty were retrospectively analyzed for range of motion (ROM) arc, functional score (Mayo Elbow Performance Score [MEPS]), and pain score (visual analog scale [VAS]). Patients were classified into stage I or II (n = 44) and stage III (n = 21) groups according to CT-based classification, and postoperative clinical outcomes and complications were analyzed. RESULTS: Mean follow-up duration was 32.9 ± 13.7 months (range, 24-69). The average patient age was 52 ± 10 years (range, 40-63). Improvements from preoperative to final follow-up were seen in the overall ROM-flexion from 94° ± 19° to 129° ± 14° (P < .01), ROM-extension from 25° ± 12° to 14° ± 7° (P < .01), MEPS from 45 ± 13 to 78 ± 14 (P < .01), and VAS score from 6.3 ± 1.6 to 3.1 ± 1.4 (P < .01). Subgroup analysis using the CT-based classification revealed that stage III led to worsened VAS score and MEPS than stage I or II. CONCLUSIONS: Arthroscopic osteocapsular arthroplasty can be recommended for its favorable overall treatment outcomes for elbow osteoarthritis. However, stage III shows worse clinical and radiologic outcomes compared with stage I or II according to CT-based classification.
HYPOTHESIS: Arthroscopic osteocapsular arthroplasty for stage III osteoarthritis (advanced stage) shows worse clinical and radiologic outcomes compared with stage I or II according to computed tomography (CT)-based classification. METHODS: Clinical and radiologic outcomes in 65 patients treated with arthroscopic osteocapsular arthroplasty were retrospectively analyzed for range of motion (ROM) arc, functional score (Mayo Elbow Performance Score [MEPS]), and pain score (visual analog scale [VAS]). Patients were classified into stage I or II (n = 44) and stage III (n = 21) groups according to CT-based classification, and postoperative clinical outcomes and complications were analyzed. RESULTS: Mean follow-up duration was 32.9 ± 13.7 months (range, 24-69). The average patient age was 52 ± 10 years (range, 40-63). Improvements from preoperative to final follow-up were seen in the overall ROM-flexion from 94° ± 19° to 129° ± 14° (P < .01), ROM-extension from 25° ± 12° to 14° ± 7° (P < .01), MEPS from 45 ± 13 to 78 ± 14 (P < .01), and VAS score from 6.3 ± 1.6 to 3.1 ± 1.4 (P < .01). Subgroup analysis using the CT-based classification revealed that stage III led to worsened VAS score and MEPS than stage I or II. CONCLUSIONS: Arthroscopic osteocapsular arthroplasty can be recommended for its favorable overall treatment outcomes for elbow osteoarthritis. However, stage III shows worse clinical and radiologic outcomes compared with stage I or II according to CT-based classification.