Background: Trapeziectomy with suspension arthroplasty is a reliable treatment for thumb carpometacarpal (CMC) osteoarthritis.We modified the suture suspension technique to add further support to maintain the arthroplasty space by interposition of the dermal allograft. Our aim was to investigate the surgical outcomes of our technique of suspension arthroplasty with dermal allograft interposition (SADI) compared with those of traditional ligament reconstruction with tendon interposition (LRTI) using a half-sling of the flexor carpi radialis (FCR) tendon. Methods: This retrospective study enrolled 26 patients (29 thumbs) with thumb CMC arthritis who underwent trapeziectomy with traditional LRTI using the FCR tendon (15 thumbs; LRTI group) or SADI (14 thumbs; SADI group) between January 2017 and May 2022. Patient-reported outcomes (visual analog scale; the Disabilities of the Arm, Shoulder and Hand score; and patient-rated wrist evaluation), grip strength, and scaphometacarpal distance were measured at baseline and 3 and 12 months postoperatively. The operation time was checked by reviewing medical records. All measurements were compared between the 2 groups. Results: Between baseline and 12-month postoperative follow-up, all patient-reported outcomes significantly improved in both groups. Patient-reported outcomes, grip strength, and scaphometacarpal distance showed no differences between the 2 groups at all follow-up assessments, except for the scaphometacarpal distance being significantly greater in the SADI group at 3 months postoperatively. The operation time was significantly shorter in the SADI group. No complication was observed in either group. Conclusions Our modified suture suspension arthroplasty technique using dermal allograft interposition results in markedly shorter surgical times with similar surgical outcomes compared with those of traditional LRTI using the FCR tendon. This procedure appears to be an effective alternative treatment for thumb CMC arthritis.

Background: Trapeziectomy with suspension arthroplasty is a reliable treatment for thumb carpometacarpal (CMC) osteoarthritis.We modified the suture suspension technique to add further support to maintain the arthroplasty space by interposition of the dermal allograft. Our aim was to investigate the surgical outcomes of our technique of suspension arthroplasty with dermal allograft interposition (SADI) compared with those of traditional ligament reconstruction with tendon interposition (LRTI) using a half-sling of the flexor carpi radialis (FCR) tendon. Methods: This retrospective study enrolled 26 patients (29 thumbs) with thumb CMC arthritis who underwent trapeziectomy with traditional LRTI using the FCR tendon (15 thumbs; LRTI group) or SADI (14 thumbs; SADI group) between January 2017 and May 2022. Patient-reported outcomes (visual analog scale; the Disabilities of the Arm, Shoulder and Hand score; and patient-rated wrist evaluation), grip strength, and scaphometacarpal distance were measured at baseline and 3 and 12 months postoperatively. The operation time was checked by reviewing medical records. All measurements were compared between the 2 groups. Results: Between baseline and 12-month postoperative follow-up, all patient-reported outcomes significantly improved in both groups. Patient-reported outcomes, grip strength, and scaphometacarpal distance showed no differences between the 2 groups at all follow-up assessments, except for the scaphometacarpal distance being significantly greater in the SADI group at 3 months postoperatively. The operation time was significantly shorter in the SADI group. No complication was observed in either group. Conclusions Our modified suture suspension arthroplasty technique using dermal allograft interposition results in markedly shorter surgical times with similar surgical outcomes compared with those of traditional LRTI using the FCR tendon. This procedure appears to be an effective alternative treatment for thumb CMC arthritis.

Background: Trapeziectomy with suspension arthroplasty is a reliable treatment for thumb carpometacarpal (CMC) osteoarthritis.We modified the suture suspension technique to add further support to maintain the arthroplasty space by interposition of the dermal allograft. Our aim was to investigate the surgical outcomes of our technique of suspension arthroplasty with dermal allograft interposition (SADI) compared with those of traditional ligament reconstruction with tendon interposition (LRTI) using a half-sling of the flexor carpi radialis (FCR) tendon. Methods: This retrospective study enrolled 26 patients (29 thumbs) with thumb CMC arthritis who underwent trapeziectomy with traditional LRTI using the FCR tendon (15 thumbs; LRTI group) or SADI (14 thumbs; SADI group) between January 2017 and May 2022. Patient-reported outcomes (visual analog scale; the Disabilities of the Arm, Shoulder and Hand score; and patient-rated wrist evaluation), grip strength, and scaphometacarpal distance were measured at baseline and 3 and 12 months postoperatively. The operation time was checked by reviewing medical records. All measurements were compared between the 2 groups. Results: Between baseline and 12-month postoperative follow-up, all patient-reported outcomes significantly improved in both groups. Patient-reported outcomes, grip strength, and scaphometacarpal distance showed no differences between the 2 groups at all follow-up assessments, except for the scaphometacarpal distance being significantly greater in the SADI group at 3 months postoperatively. The operation time was significantly shorter in the SADI group. No complication was observed in either group. Conclusions Our modified suture suspension arthroplasty technique using dermal allograft interposition results in markedly shorter surgical times with similar surgical outcomes compared with those of traditional LRTI using the FCR tendon. This procedure appears to be an effective alternative treatment for thumb CMC arthritis.

Background: Trapeziectomy with suspension arthroplasty is a reliable treatment for thumb carpometacarpal (CMC) osteoarthritis.We modified the suture suspension technique to add further support to maintain the arthroplasty space by interposition of the dermal allograft. Our aim was to investigate the surgical outcomes of our technique of suspension arthroplasty with dermal allograft interposition (SADI) compared with those of traditional ligament reconstruction with tendon interposition (LRTI) using a half-sling of the flexor carpi radialis (FCR) tendon. Methods: This retrospective study enrolled 26 patients (29 thumbs) with thumb CMC arthritis who underwent trapeziectomy with traditional LRTI using the FCR tendon (15 thumbs; LRTI group) or SADI (14 thumbs; SADI group) between January 2017 and May 2022. Patient-reported outcomes (visual analog scale; the Disabilities of the Arm, Shoulder and Hand score; and patient-rated wrist evaluation), grip strength, and scaphometacarpal distance were measured at baseline and 3 and 12 months postoperatively. The operation time was checked by reviewing medical records. All measurements were compared between the 2 groups. Results: Between baseline and 12-month postoperative follow-up, all patient-reported outcomes significantly improved in both groups. Patient-reported outcomes, grip strength, and scaphometacarpal distance showed no differences between the 2 groups at all follow-up assessments, except for the scaphometacarpal distance being significantly greater in the SADI group at 3 months postoperatively. The operation time was significantly shorter in the SADI group. No complication was observed in either group. Conclusions Our modified suture suspension arthroplasty technique using dermal allograft interposition results in markedly shorter surgical times with similar surgical outcomes compared with those of traditional LRTI using the FCR tendon. This procedure appears to be an effective alternative treatment for thumb CMC arthritis.

Purpose: This study is evaluated the clinical and radiological outcomes of Hook plate fixation in acute acromioclavicular (AC) joint injuries and the differences according to the type of plate and whether coracoclavicular (CC) ligament repair had been performed. Materials and Methods: Between February 2008 and November 2022, 112 patients treated with a Hook plate for acute AC joint injuries were analyzed retrospectively. The patients were categorized into DePuy Synthes (n=76) and ARIX Hook plate group (n=36), Hook plate with CC ligament repair group (n=42) and Hook plate fixation only group (n=70). The clinical and radiologic outcomes of Hook plate fixation were evaluated by analyzing the visual analog scale (VAS) pain score, American Shoulder and Elbow Surgeons (ASES) score, University of California at Los Angeles (UCLA) score, coracoclavicular distance (CCD), subacromial erosion and associated surgical complications depending on the different types of Hook plate (DePuy Synthes vs. ARIX clavicle system) and the application of additional CC ligament repair. Results: The median follow-up period after implant removal for the 112 patients was 7.4 months (range, 6.0–124.8 months). The ASES and UCLA scores at the final follow-up were 77.2±6.2 and 31.8±2.3, respectively, and the CCD was 115.5%±28.9% compared to the unaffected side.There were no significant differences in the final VAS score, ASES score, UCLA score, CCD, subacromial erosion and surgical complications between the DePuy Synthes and ARIX Hook plate groups. In addition, there was no difference depending on whether CC ligament repair had been performed. Conclusion Hook plate fixation in acute AC joint injuries showed good clinical and radiological results. It is considered a good surgical method, and there was no difference in the results depending on plate type and CC ligament repair.

Purpose: Medial soft tissue release in knee varus deformities during total knee arthroplasty (TKA) is necessary for adequate gap balancing.This study compared the clinical outcomes and complications of subperiosteal elevation (SE) and multiple needle puncturing (MNP) for superficial medial collateral ligament (sMCL) release and evaluated the effectiveness and safety of MNP. Materials and Methods: This study retrospectively analyzed 152 patients who underwent both TKA and sMCL release for degenerative osteoarthritis with varus alignment; one knee from each patient underwent SE and the other underwent MNP between April 2018 and April 2020. In SE, subperiosteal release was performed on the proximal tibia of the anterior portion of the sMCL using a curved osteotome. For MNP, an 18-gauge needle was used to puncture the sMCL. The clinical outcomes, including knee further flexion (FF), flexion contracture (FC), range of motion (ROM) and Knee Society (KS) scores, were compared. Surgical complications, including sMCL overrelease, were also evaluated. Results: For the SE and MNP groups, the preoperative KS scores (31.05 vs. 31.78), knee alignment (varus angle, 4.22° vs. 3.76°), FF (125.86° vs. 126.48°), FC (6.09° vs. 5.69°) and ROM (119.77° vs. 120.79°) did not differ preoperatively. At one-year follow-up, postoperative KS scores, FF, FC and ROM were similar in the two groups (93.01 vs. 92.64 points; 134.24° vs. 134.64°; 0.36° vs. 0.49°; 133.88° vs. 134.14°;p=0.662, 0.749, 0.493 and 0.835 respectively), and no statistically significant differences in terms of postoperative pain and KS pain score were observed between the two groups (66 vs. 58 patients and 43.31 vs. 43.04 points; p=0.473 and 0.745, respectively). In the SE group, five cases showed intraoperative over-release of the sMCL and a significant difference from the MNP group (p=0.024) but showed no medial instability at the final follow-up. Conclusion Compared with the SE technique, MNP showed no significant difference in the clinical outcomes and fewer complications, such as over-release of the sMCL, and could be a safer alternative to achieve a balanced TKA.

Purpose: This study is evaluated the clinical and radiological outcomes of Hook plate fixation in acute acromioclavicular (AC) joint injuries and the differences according to the type of plate and whether coracoclavicular (CC) ligament repair had been performed. Materials and Methods: Between February 2008 and November 2022, 112 patients treated with a Hook plate for acute AC joint injuries were analyzed retrospectively. The patients were categorized into DePuy Synthes (n=76) and ARIX Hook plate group (n=36), Hook plate with CC ligament repair group (n=42) and Hook plate fixation only group (n=70). The clinical and radiologic outcomes of Hook plate fixation were evaluated by analyzing the visual analog scale (VAS) pain score, American Shoulder and Elbow Surgeons (ASES) score, University of California at Los Angeles (UCLA) score, coracoclavicular distance (CCD), subacromial erosion and associated surgical complications depending on the different types of Hook plate (DePuy Synthes vs. ARIX clavicle system) and the application of additional CC ligament repair. Results: The median follow-up period after implant removal for the 112 patients was 7.4 months (range, 6.0–124.8 months). The ASES and UCLA scores at the final follow-up were 77.2±6.2 and 31.8±2.3, respectively, and the CCD was 115.5%±28.9% compared to the unaffected side.There were no significant differences in the final VAS score, ASES score, UCLA score, CCD, subacromial erosion and surgical complications between the DePuy Synthes and ARIX Hook plate groups. In addition, there was no difference depending on whether CC ligament repair had been performed. Conclusion Hook plate fixation in acute AC joint injuries showed good clinical and radiological results. It is considered a good surgical method, and there was no difference in the results depending on plate type and CC ligament repair.

Purpose: Medial soft tissue release in knee varus deformities during total knee arthroplasty (TKA) is necessary for adequate gap balancing.This study compared the clinical outcomes and complications of subperiosteal elevation (SE) and multiple needle puncturing (MNP) for superficial medial collateral ligament (sMCL) release and evaluated the effectiveness and safety of MNP. Materials and Methods: This study retrospectively analyzed 152 patients who underwent both TKA and sMCL release for degenerative osteoarthritis with varus alignment; one knee from each patient underwent SE and the other underwent MNP between April 2018 and April 2020. In SE, subperiosteal release was performed on the proximal tibia of the anterior portion of the sMCL using a curved osteotome. For MNP, an 18-gauge needle was used to puncture the sMCL. The clinical outcomes, including knee further flexion (FF), flexion contracture (FC), range of motion (ROM) and Knee Society (KS) scores, were compared. Surgical complications, including sMCL overrelease, were also evaluated. Results: For the SE and MNP groups, the preoperative KS scores (31.05 vs. 31.78), knee alignment (varus angle, 4.22° vs. 3.76°), FF (125.86° vs. 126.48°), FC (6.09° vs. 5.69°) and ROM (119.77° vs. 120.79°) did not differ preoperatively. At one-year follow-up, postoperative KS scores, FF, FC and ROM were similar in the two groups (93.01 vs. 92.64 points; 134.24° vs. 134.64°; 0.36° vs. 0.49°; 133.88° vs. 134.14°;p=0.662, 0.749, 0.493 and 0.835 respectively), and no statistically significant differences in terms of postoperative pain and KS pain score were observed between the two groups (66 vs. 58 patients and 43.31 vs. 43.04 points; p=0.473 and 0.745, respectively). In the SE group, five cases showed intraoperative over-release of the sMCL and a significant difference from the MNP group (p=0.024) but showed no medial instability at the final follow-up. Conclusion Compared with the SE technique, MNP showed no significant difference in the clinical outcomes and fewer complications, such as over-release of the sMCL, and could be a safer alternative to achieve a balanced TKA.

Purpose: This study is evaluated the clinical and radiological outcomes of Hook plate fixation in acute acromioclavicular (AC) joint injuries and the differences according to the type of plate and whether coracoclavicular (CC) ligament repair had been performed. Materials and Methods: Between February 2008 and November 2022, 112 patients treated with a Hook plate for acute AC joint injuries were analyzed retrospectively. The patients were categorized into DePuy Synthes (n=76) and ARIX Hook plate group (n=36), Hook plate with CC ligament repair group (n=42) and Hook plate fixation only group (n=70). The clinical and radiologic outcomes of Hook plate fixation were evaluated by analyzing the visual analog scale (VAS) pain score, American Shoulder and Elbow Surgeons (ASES) score, University of California at Los Angeles (UCLA) score, coracoclavicular distance (CCD), subacromial erosion and associated surgical complications depending on the different types of Hook plate (DePuy Synthes vs. ARIX clavicle system) and the application of additional CC ligament repair. Results: The median follow-up period after implant removal for the 112 patients was 7.4 months (range, 6.0–124.8 months). The ASES and UCLA scores at the final follow-up were 77.2±6.2 and 31.8±2.3, respectively, and the CCD was 115.5%±28.9% compared to the unaffected side.There were no significant differences in the final VAS score, ASES score, UCLA score, CCD, subacromial erosion and surgical complications between the DePuy Synthes and ARIX Hook plate groups. In addition, there was no difference depending on whether CC ligament repair had been performed. Conclusion Hook plate fixation in acute AC joint injuries showed good clinical and radiological results. It is considered a good surgical method, and there was no difference in the results depending on plate type and CC ligament repair.

Purpose: Medial soft tissue release in knee varus deformities during total knee arthroplasty (TKA) is necessary for adequate gap balancing.This study compared the clinical outcomes and complications of subperiosteal elevation (SE) and multiple needle puncturing (MNP) for superficial medial collateral ligament (sMCL) release and evaluated the effectiveness and safety of MNP. Materials and Methods: This study retrospectively analyzed 152 patients who underwent both TKA and sMCL release for degenerative osteoarthritis with varus alignment; one knee from each patient underwent SE and the other underwent MNP between April 2018 and April 2020. In SE, subperiosteal release was performed on the proximal tibia of the anterior portion of the sMCL using a curved osteotome. For MNP, an 18-gauge needle was used to puncture the sMCL. The clinical outcomes, including knee further flexion (FF), flexion contracture (FC), range of motion (ROM) and Knee Society (KS) scores, were compared. Surgical complications, including sMCL overrelease, were also evaluated. Results: For the SE and MNP groups, the preoperative KS scores (31.05 vs. 31.78), knee alignment (varus angle, 4.22° vs. 3.76°), FF (125.86° vs. 126.48°), FC (6.09° vs. 5.69°) and ROM (119.77° vs. 120.79°) did not differ preoperatively. At one-year follow-up, postoperative KS scores, FF, FC and ROM were similar in the two groups (93.01 vs. 92.64 points; 134.24° vs. 134.64°; 0.36° vs. 0.49°; 133.88° vs. 134.14°;p=0.662, 0.749, 0.493 and 0.835 respectively), and no statistically significant differences in terms of postoperative pain and KS pain score were observed between the two groups (66 vs. 58 patients and 43.31 vs. 43.04 points; p=0.473 and 0.745, respectively). In the SE group, five cases showed intraoperative over-release of the sMCL and a significant difference from the MNP group (p=0.024) but showed no medial instability at the final follow-up. Conclusion Compared with the SE technique, MNP showed no significant difference in the clinical outcomes and fewer complications, such as over-release of the sMCL, and could be a safer alternative to achieve a balanced TKA.