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Replacement Knee Bursa and Ligament, Right to No Qualifier with Nonautologous Tissue Substitute, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | M Bursae and Ligaments |
| Operation | R Replacement |
| Body Part | N Knee Bursa and Ligament, Right |
| Approach | 0 Open |
| Device | K Nonautologous Tissue Substitute |
| Qualifier | Z No Qualifier |
Operation Definition
Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part
Procedure Overview
Replacement procedures in this family involve putting in biological or synthetic material to physically stand in for all or part of a damaged bursa or, far more commonly, a ligament. The clearest example is anterior cruciate ligament (ACL) reconstruction, where a torn ACL is removed and replaced with a graft harvested from the patient's own patellar or hamstring tendon, from a donor, or occasionally a synthetic substitute, because the native ligament cannot be sutured back together and heal reliably.
These procedures are performed when a ligament tear is too severe, too chronic, or too central to joint stability for simple suturing to restore function - the knee, shoulder, and elbow are the joints where ligament replacement is most frequently needed. The goal is to give the joint a new structural cable capable of bearing the same mechanical loads as the original ligament, allowing patients to return to sports or daily activity with restored stability. Recovery is longer than for a simple repair, involving staged rehabilitation as the graft incorporates into the surrounding bone.
Anatomy & Axis Detail
Knee Bursa and Ligament, Right
The right knee's bursae and ligaments include the collateral and cruciate ligaments along with the prepatellar and infrapatellar bursae, structures central to stabilizing a hinge joint that bears weight while permitting flexion and rotation. Replacement is commonly performed after ligament rupture from sports injury or trauma, or when chronic instability from degenerative or prior surgical failure cannot be corrected by repair, using autograft, allograft, or synthetic material to reconstruct the torn restraint. The specific ligament involved, such as the anterior cruciate or medial collateral, substantially affects graft choice, fixation technique, and rehabilitation, making precise identification essential. Because the knee depends on multiple ligaments working together, documentation should clarify exactly which structure was replaced during the procedure.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Device: Nonautologous Tissue Substitute
Nonautologous Tissue Substitute refers to biologic material sourced from a donor or another species, such as an allograft or xenograft, used to replace a body part. It differs from Autologous Tissue Substitute by tissue origin outside the patient's own body, and from Synthetic Substitute by being biologic rather than manufactured material.
Coding & Documentation
Coders assign from this family when documentation clearly states that the native ligament or bursa was removed and a graft or prosthetic material was implanted to take its place - autograft, allograft, and synthetic ligament substitutes all qualify. The operative note should identify the graft source and confirm the original structure was excised rather than left in place. A common assignment error is coding Replacement when the surgeon actually augmented an intact ligament with additional material, which is Supplement; the deciding question is whether the native structure was taken out. Another pitfall is missing the correct body part value when a graft crosses two adjoining structures, such as ACL reconstruction touching both femoral and tibial attachment sites.